Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SO 8

FEATURES DESCRIPTION

APPLICATIONS

OPA454

V-

V+

Status

Flag

Enable/DisableCommon

(E/DCom)

Enable/Disable(E/D)

+IN

-IN

OPA454

www.ti.com

....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008

High-Voltage (100V), High-Current (50mA)

OPERATIONAL AMPLIFIERS, G = 1 Stable

• WIDE POWER-SUPPLY RANGE:

The OPA454 is a low-cost operational amplifier with

± 5V (10V) to ± 50V (100V)

high voltage (100V) and relatively high current drive

(50mA). It is unity-gain stable and has a

• HIGH OUTPUT LOAD DRIVE: I

> ± 50mA

gain-bandwidth product of 2.5MHz.

• WIDE OUTPUT VOLTAGE SWING: 1V to Rails

The OPA454 is internally protected against

• INDEPENDENT OUTPUT DISABLE OR

over-temperature conditions and current overloads. It

SHUTDOWN

is fully specified to perform over a wide power-supply

• WIDE TEMPERATURE RANGE: – 40 ° C to +85 ° C

range of ± 5V to ± 50V or on a single supply of 10V to

• SO-8 PACKAGE

100V. The status flag is an open-drain output that

allows it to be easily referenced to standard

low-voltage logic circuitry. This high-voltage op amp

provides excellent accuracy, wide output swing, and

• TEST EQUIPMENT

is free from phase inversion problems that are often

• AVALANCHE PHOTODIODE:

found in similar amplifiers.

High-V Current Sense

The output can be independently disabled using the

• PIEZOELECTRIC CELLS

Enable/Disable Pin that has its own common return

• TRANSDUCER DRIVERS

pin to allow easy interface to low-voltage logic

• SERVO DRIVERS

circuitry. This disable is accomplished without

• AUDIO AMPLIFIERS

disturbing the input signal path, not only saving power

but also protecting the load.

• HIGH-VOLTAGE COMPLIANCE CURRENT

SOURCES

Featured in a small exposed metal pad package, the

• GENERAL HIGH-VOLTAGE

OPA454 is easy to heatsink over the extended

REGULATORS/POWER

industrial temperature range, – 40 ° C to +85 ° C.

Table 1. OPA454 RELATED PRODUCTS

PRODUCT DESCRIPTION

OPA445

(1)

80V, 15mA

OPA452 80V, 50mA

OPA547 60V, 750mA

OPA548 60V, 3A

OPA549 60V, 9A

OPA551 60V, 200mA

OPA567 5V, 2A

OPA569 5V, 2.4A

(1) The OPA445 is pin-compatible with the OPA454, except in

applications using the offset trim, and NC pins other than

open.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2 All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (36 pages)

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OPA454 www.ti.com .......................................................................................................................................
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ELECTRICAL CHARACTERISTICS: VS = ±50V Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. At TP (1) = +25°C, RL = 4.8kΩ to mid-supply, VCM = VOUT = mid-supply, unless otherwise noted. OPA454 PARAMETER CONDITIONS MIN TYP MAX UNIT ±0.2 ±4 mV ±1.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±50V (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. At TP = +25°C, RL = 4.8kΩ to mid-supply, VCM = VOUT = mid-supply, unless otherwise noted.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ELECTRICAL CHARACTERISTICS: VS = ±50V (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. At TP = +25°C, RL = 4.8kΩ to mid-supply, VCM = VOUT = mid-supply, unless otherwise noted.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. OPEN-LOOP GAIN AND PHASE vs FREQUENCY PHASE MARGIN vs TEMPERATURE 70 65 140 120 100 Phase 80 60 40 20 0 0.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION SOLDER-ATTACHED, VOS TC SHIFT Average = 0.34mV/°C Standard Deviation = 0.44mV/°C 10 2.0 9 1.6 8 1.2 7 0.8 6 0.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. QUIESCENT CURRENT vs TEMPERATURE SHUTDOWN CURRENT vs TEMPERATURE 4.0 200 5 Typical Units Shown 3.8 Shutdown Current (mA) 3.6 IQ (mA) 3.4 3.2 3.0 2.8 2.6 2.4 180 160 140 120 2.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. MAXIMUM POWER DISSIPATION vs TEMPERATURE WITH MINIMUM ATTACH AREA SLEW RATE vs TEMPERATURE 2.0 16 SO-8 PowerPAD: TJ(max) = +125°C 15 14 Slew Rate (V/ms) Dissipation (W) 1.5 1.0 0.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. GAIN PEAKING vs CLOAD (G = +2, RF = 10kΩ, VCM = 0V) 30 CF = 0pF CF = 2.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. SETTLING TIME, NEGATIVE STEP (20V Step, Gain = 1, RF = 10kΩ) (7) (8) 15 0.06 VIN 10 0.04 5 0.02 0 V2 (Noninverting) 0 -0.02 -5 -10 -0.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 TYPICAL CHARACTERISTICS (continued) At TP = +25°C, VS = ±50V, and RL = 4.8kΩ connected to GND, unless otherwise noted. REMOVE LOAD (25mA Source Response) 1.6 +125°C +85°C +25°C -55°C 1.4 1.2 RL = 1.8kW VOUT 0.6 OPA454 2Hz 2ms Pulse -50V Flag 20V/div - 0.8 V+ +50V 0.988VPP 0.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com APPLICATIONS INFORMATION POWER SUPPLIES Figure 57 shows the OPA454 connected as a basic noninverting amplifier. The OPA454 can be used in virtually any ±5V to ±50V op amp configuration. It is especially useful for supply voltages greater than 36V.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 INCREASING OUTPUT CURRENT R1 The OPA454 drives an output current of a few milliamps to greater than 50mA while maintaining good op amp performance. See Figure 7 for open-loop gain versus temperature at various output current levels.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com INPUT RANGE -46.0 50.5 V+ TA = +25°C -46.5 -47.0 Voltage (V) The OPA454 is specified to give linear operation with input swing to within 2.5V of either supply. Generally, a gain of +1 is the most demanding configuration.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 OPEN-LOOP GAIN LINEARITY SETTLING TIME Figure 65 shows the nonlinear relationship of AOL and output voltage. As Figure 65 shows, open-loop gain is lower with positive output voltage levels compared to negative voltage levels.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com If left disconnected, E/D Com is pulled near V– (negative supply) by an internal 10µA current source. When left floating, ENABLE is held approximately 2V above E/D Com by an internal 1µA source.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 POWER DISSIPATION HEATSINKING Power dissipation depends on power supply, signal, and load conditions. For dc signals, power dissipation is equal to the product of the output current times the voltage across the conducting output transistor, PD = IL (VS – VO).
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com THERMALLY-ENHANCED PowerPAD PACKAGE plated-through holes (vias) provide a low thermal resistance heat flow path to the back side of the PCB.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 PowerPAD LAYOUT GUIDELINES The PowerPAD package allows for both assembly and thermal management in one manufacturing operation. During the surface-mount solder operation (when the leads are being soldered), the thermal pad must be soldered to a copper area underneath the package.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com TYPICAL APPLICATIONS Figure 72 and Figure 73 illustrate the OPA454 in a programmable voltage source and a bridge circuit, respectively. +95V 0.1mF 45.3kW 0-2mA DAC8811 or DAC7811 V+ -IN +IN Protects DAC During Slewing OPA454 VOUT = 0V to +91V V- RL 0.1mF -5V Figure 72.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 Figure 74 uses three OPA454s to create a high-voltage instrumentation amplifier. VCM ± VSIG must be between (V–) + 2.5V and (V+) – 2.5V. The maximum supply voltage equals ±50V or 100V total. V+ V1 OPA454 A1 Figure 75 uses three OPA454s to measure current in a high-side shunt application.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com +100V +100V 10kW 10kW +100V +100V 100kW V01 V04 OPA454 V- 190kW OPA454 A4 A1 10kW 100kW V+ V+ 10kW V- 200kW 100kW V+ VLOAD = +97V, -98V (195VPP) VOUT OPA454 100kW A3 VIN V+ OPA454 A6 RLOAD 3.75kW V- VLOAD = +97V, -98V (195VPP) VOUT RLOAD 3.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 +100V +100V 10kW 10kW +120V +120V 100kW 100kW V+ V+ OPA454 OPA454 A1 10kW A4 V- 190kW V100kW (+97V, -98V) 10kW 100kW RLOAD 7.
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OPA454 SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com R1 25kW A red light emitting diode (LED) was used to generate Figure 84. R2 25kW V1 VOUT = V2 - V1 OPA454 R3 25kW Gain of the avalanche photodiode (APD) is adjusted by changing the voltage across the APD. Gain starts to increase when reverse voltage is increased beyond 130V for this APD diode.
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OPA454 www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 R7 10kW R1 90kW +100V +100V R2 1kW V+ V+ OPA454 OPA454 A1 R4 100kW A2 +100V V- V- VOUT = 100 ´ RSENSE ´ ID V+ OPA454 + V1 Gain Adjust Voltage 2.5V to 9.5V RSENSE 100W V- +100V R3 1kW V+ OPA454 A4 VOUT +100V R8 198kW R9 4.9kW A3 V- R5 100kW LM4041D Adjusted for 2.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device OPA454AIDDAR Package Package Pins Type Drawing SO Power PAD DDA 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.4 B0 (mm) K0 (mm) P1 (mm) 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA454AIDDAR SO PowerPAD DDA 8 2500 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.