Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SOT 23 5

NC – No internal connection

Output

V+

V–

+In

–In

D PACKAGE

(TOP VIEW)

3 4

–In

V+

+In

V–

DBV PACKAGE

(TOP VIEW)

Output

OPA340-EP

www.ti.com

SBOS433A – AUGUST 2008–REVISED APRIL 2011

SINGLE-SUPPLY RAIL-TO-RAIL OPERATIONAL AMPLIFIERS

Check for Samples: OPA340-EP

FEATURES

SUPPORTS DEFENSE, AEROSPACE,

AND MEDICAL APPLICATIONS

• Rail-to-Rail Input

• Controlled Baseline

• Rail-to-Rail Output (Within 1 mV)

• One Assembly/Test Site

• Wide Bandwidth: 5.5 MHz

• One Fabrication Site

• High Slew Rate: 6 V/μs

• Available in Military (–55°C/125°C)

• Low THD+Noise: 0.0007% (f = 1 kHz)

Temperature Range

(1)

• Low Quiescent Current: 750 μA/channel

• Extended Product Life Cycle

• Single, Dual, and Quad Versions

• Extended Product-Change Notification

APPLICATIONS • Product Traceability

• Driving Analog-to-Digital (A/D) Converters

• PCMCIA Cards

• Data Acquisition

• Process Control

• Audio Processing

• Communications

• Active Filters

• Test Equipment

(1) Additional temperature ranges are available - contact factory

DESCRIPTION

The OPA340 rail-to-rail CMOS operational amplifier is optimized for low-voltage, single-supply operation.

Rail-to-rail input/output and high-speed operation make it ideal for driving sampling analog-to-digital (A/D)

converters. The OPA340 is also well-suited for general purpose and audio applications as well as providing

current/voltage conversion at the output of digital-to-analog (D/A) converters.

The OPA340 operates on a single supply as low as 2.7 V with an input common-mode voltage range that

extends 500 mV below ground and 500 mV above the positive supply. Output voltage swing is to within 1 mV of

the supply rails with a 100-kΩ load. It offers excellent dynamic response (BW = 5.5 MHz, SR = 6 V/μs), yet

quiescent current is only 750 μA.

The surface mount package options are SOIC-8 or SOT23-5. Both are specified from –55°C to 125°C. A SPICE

macromodel is available for design analysis.

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.

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 (19 pages)

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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com SINGLE-SUPPLY RAIL-TO-RAIL OPERATIONAL AMPLIFIERS Check for Samples: OPA340-EP FEATURES 1 • • • • • • • Rail-to-Rail Input Rail-to-Rail Output (Within 1 mV) Wide Bandwidth: 5.5 MHz High Slew Rate: 6 V/μs Low THD+Noise: 0.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 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. ESD damage can range from subtle performance degradation to complete device failure.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = 2.7 V to 5 V Over specified temperature range (TA = –55°C to 125°C), VS = 5 V, RL = 10 kΩ connected to VS/2, VOUT = VS/2 (unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT ±500 μV OFFSET VOLTAGE Input offset voltage VOS VS = 5 V ±150 TA = 25°C ±1600 TA = Full range vs temperature vs power supply ±2.5 dVOS/dT PSRR VS = 2.7 V to 5.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = 2.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com TYPICAL CHARACTERISTICS At TA = 25°C, VS = 5 V, and RL = 10 kΩ connected to VS/2 (unless otherwise noted) OPEN-LOOP GAIN/PHASE vs FREQUENCY POWER-SUPPLY AND COMMON-MODE REJECTION vs FREQUENCY 160 100 0 PSRR 140 100 80 -90 60 40 -135 PSRR, CMRR (dB) -45 Phase (°) Voltage Gain (dB) 120 80 20 60 40 CMRR 20 0 -180 -20 0 0.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = 5 V, and RL = 10 kΩ connected to VS/2 (unless otherwise noted) OPEN-LOOP GAIN AND POWER-SUPPLY REJECTION vs TEMPERATURE 130 RL = 100kW AOL 120 90 RL = 10kW 110 CMRR (dB) AOL, PSRR (dB) COMMON-MODE REJECTION vs TEMPERATURE 100 RL = 2kW 100 80 70 60 PSRR 90 VS = 2.7V to 5V, VCM = -0.3V to (V+) -1.8V VS = 5V, VCM = -0.3V to 5.3V VS = 2.7V, VCM = -0.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = 5 V, and RL = 10 kΩ connected to VS/2 (unless otherwise noted) INPUT BIAS CURRENT vs INPUT COMMON-MODE VOLTAGE INPUT BIAS CURRENT vs TEMPERATURE 1.0 1k Input Bias Current (pA) Input Bias Current (pA) 0.8 100 10 1 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 0.1 -1.0 -75 -50 0 -25 25 50 75 100 125 0 -1 1 Temperature (°C) 2 Figure 13.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = 5 V, and RL = 10 kΩ connected to VS/2 (unless otherwise noted) LARGE-SIGNAL STEP RESPONSE CL = 100pF 1V/div 50mV/div SMALL-SIGNAL STEP RESPONSE CL = 100pF 1ms/div 1ms/div Figure 19. Figure 20. SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE SETTLING TIME vs CLOSED-LOOP GAIN 100 60 G = -1 0.01% Settling Time (ms) Overshoot (%) 50 G = +1 40 30 G = -5 20 10 0.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com APPLICATION INFORMATION The OPA340 is fabricated on a state-of-the-art 0.6-micron CMOS process. It is unity-gain stable and suitable for a wide range of general-purpose applications. Rail-to-rail input/output makes it ideal for driving sampling A/D converters. In addition, excellent ac performance makes it well-suited for audio applications.
PAGE 10
OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com V+ Reference Current VIN+ VINVBIAS1 Class AB Control Circuitry VO VBIAS2 V(Ground) Figure 24. Simplified Schematic V+ IOVERLOAD 10mA max OPAx340 VOUT VIN 5kW Figure 25. Input Current Protection for Voltages Exceeding the Supply Voltage RAIL-TO-RAIL OUTPUT A class AB output stage with common-source transistors is used to achieve rail-to-rail output.
PAGE 11
OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com CAPACITIVE LOAD AND STABILITY DRIVING A/D CONVERTERS The OPA340 can drive a wide range of capacitive loads. However, all operational amplifiers under certain conditions may become unstable. Op amp configuration, gain, and load value are just a few of the factors to consider when determining stability. An operational amplifier in unity gain configuration is most susceptible to the effects of capacitive load.
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OPA340-EP SBOS433A – AUGUST 2008 – REVISED APRIL 2011 www.ti.com Figure 27. OPA340 in Noninverting Configuration Driving ADS7816 +5V 330pF 0.1mF 5kW 0.1mF 5kW VIN 1 VREF 8 V+ DCLOCK +In OPA340 ADS7816 12-Bit A/D 2 -In DOUT CS/SHDN 3 7 6 5 Serial Interface GND 4 VIN = 0V to -5V for 0V to 5V output. NOTE: A/D Input = 0 to VREF Figure 28. OPA340 in Inverting Configuration Driving ADS7816 Filters 160Hz to 2.4kHz +5V 10MW VIN 200pF 10MW 1/2 OPA2340 243kW 1.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Apr-2011 TAPE AND REEL INFORMATION *All dimensions are nominal Device OPA340MDBVTEP Package Package Pins Type Drawing SPQ SOT-23 250 DBV 5 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 179.0 8.4 Pack Materials-Page 1 3.2 B0 (mm) K0 (mm) P1 (mm) 3.2 1.4 4.0 W Pin1 (mm) Quadrant 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Apr-2011 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA340MDBVTEP SOT-23 DBV 5 250 195.0 200.0 45.
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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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.