Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SOT 6

10k

10M

FREQUENCY (Hz)

GAIN (dB)

1M1k

100k100

-20

100

160

140

120

-20

100

160

140

120

PHASE

(

)

PHASE

GAIN

= 1V

.01 PF

1 PF

VIRTUAL GROUND

LMV951

www.ti.com

SNOSAI3C –OCTOBER 2006–REVISED APRIL 2013

LMV951 1V, 2.7 MHz, Rail-to-Rail Input and Output Amplifier with Shutdown Option

Check for Samples: LMV951

FEATURES

DESCRIPTION

The LMV951 amplifier is capable of operating at

• (Typical 1.0V Supply, unless Otherwise Noted)

supply voltages from 0.9V to 3V with specified specs

• Ensured 1V Single Supply Operation

at 1V and 1.8V single supply.

• Wide Bandwidth

The input common mode range extends to both

• No V

Glitch over the Input CMVR

power supply rails without the offset glitch and input

• No Input I

BIAS

Current Reversal over V

bias current phase reversal inherent to most rail to

rail input amplifiers.

Range

• Buffered Output Stage

Contrary to a conventional rail to rail output amplifier

the LMV951 has a buffered output stage providing an

• High Output Drive Capability

open loop gain which is relatively unaffected by

• Output Short Circuit

resistive output loading. At 1V supply voltage, the

– Sink Current 35 mA

LMV951 is able to source and sink in excess of 35

mA and offers a gain bandwidth product of 2.7 MHz.

– Source Current 45 mA

• Rail-to-Rail Buffered Output

In shutdown mode the LMV951 consumes less than

50 nA of supply current.

– At 600Ω Load 32 mV from Either Rail

– At 2 kΩ Load 12 mV from Either Rail

• Temperature Range −40°C to 125°C

APPLICATIONS

• Battery Operated Systems

• Battery Monitoring

• Supply Current Monitoring

VIRTUAL GROUND CIRCUIT

Open Loop Gain and Phase

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.

2All 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 (24 pages)

PAGE 1
LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 LMV951 1V, 2.7 MHz, Rail-to-Rail Input and Output Amplifier with Shutdown Option Check for Samples: LMV951 FEATURES DESCRIPTION • • • • • The LMV951 amplifier is capable of operating at supply voltages from 0.9V to 3V with specified specs at 1V and 1.8V single supply. 1 2 • • • • • (Typical 1.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ABSOLUTE MAXIMUM RATINGS ESD Tolerance (3) (1) (2) Human Body Model Machine Model Supply Voltage (V+ – V−) ±0.3V V+ +0.3V, V− −0.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 (1) 1V ELECTRICAL CHARACTERISTICS Unless otherwise specified, all limits specified for at TA = 25°C, V+ = 1, V− = 0V, VCM = 0.5V, Shutdown = 0V, and RL = 1 MΩ.Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (2) Typ (3) VOS Input Offset Voltage 1.5 TC VOS Input Offset Average Drift 0.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com 1.8V ELECTRICAL CHARACTERISTICS (1) Unless otherwise specified, all limits specified for at TA = 25°C, V+ = 1.8V, V− = 0V, VCM = 0.9V, Shutdown = 0V, and RL = 1 MΩ.Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (2) Typ Max Units 2.8 3.0 mV (3) (2) VOS Input Offset Voltage 1.5 TC VOS Input Offset Average Drift 0.15 IB Input Bias Current IOS Input Offset Current 0.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 CONNECTION DIAGRAM 1 6 OUTPUT V - 5 2 + +IN 3 + V SHUTDOWN 4 -IN Figure 1.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. Supply Current vs. Supply Voltage Supply Current vs. Supply Voltage in Shutdown Mode 1.6 120 100 SUPPLY CURRENT (nA) SUPPLY CURRENT (mA) 1.4 1.2 1 125°C 0.8 25°C 0.6 -40°C 0.4 1.2 1.6 2.4 2 60 125°C 40 25°C 2.8 0 0.8 3.2 1.2 1.6 2 2.4 2.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. VOS vs. VCM VOS vs. VCM 1.4 1.6 125°C 1.2 125°C VOS ( mV) VOS (mV) 1.5 25°C 1.4 1.3 1 25°C 0.8 -40°C 0.6 -40°C + + V = 3V V = 1.8V 0.4 1.2 0.3 0 0.6 0.9 1.2 1.5 1.8 0.5 0 1 VCM (V) 1.5 2 2.5 3 VCM (V) Figure 8.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. Sourcing Current vs. Supply Voltage Sinking Current vs Supply Voltage 160 200 140 170 -40°C -40°C 140 25°C ISINK (mA) ISOURCE (mA) 120 100 80 125°C 25°C 110 80 60 125°C 50 40 20 0.8 1.2 1.6 2.4 2.8 2 SUPPLY VOLTAGE (V) 20 0.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. Sourcing Current vs. Output Voltage Sinking Current vs. Output Voltage 160 210 + + V = 3V V = 3V 140 180 -40°C 150 100 ISINK (mA) ISOURCE (mA) 120 25°C 80 125°C 60 25°C 90 60 40 125°C 30 20 0 -40°C 120 0.5 0 1 2 1.5 2.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. Large Signal Transient Response, AV = +1 10 mV/DIV 200 mV/DIV Small Signal Transient Response, AV = +1 INPUT = 20 mVPP f = 500 kHz INPUT = 0.8 VPP f = 100 kHz + + V = 1V V = 1V 2 PV/DIV Figure 32. Figure 33.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. Phase Margin vs. Capacitive Load (stability) 100 Phase Margin vs. Capacitive Load (stability) 100 + + V = 1V V = 1.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, all limits are specified for TA = 25°C, V+ = 1V, V− = 0V, VCM = V+/2 = VO. Boldface limits apply at the temperature extremes. THD+N vs. Frequency THD+N vs. Frequency 0.16 0.18 + + V = 1.8V V = 1V 0.14 0.15 600: 0.12 600: 0.1 THD+N (%) THD+N (%) 0.12 0.09 0.08 0.06 0.06 100 k: 0.04 100 k: 0.03 0.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com APPLICATION INFORMATION CIRCUIT DESCRIPTION AND ADVANTAGE OF THE LMV951 The LMV951 utilizes an internal voltage generator which allows for rail to rail input and output operation from 1 to 3V supplies. An internal switching frequency between 10 MHz and 15 MHz is used for generating the internal voltages.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 The chart below gives recommended values for some common values of large capacitors. For these values RL = 2 kΩ; RS CS 500 pF 330Ω 6800 pF 680 pF 270Ω 8200 pF 1000 pF 220Ω .015 μF 25 mV/DIV 25 mV/DIV CL + + V = 1V V = 1V 1 Ps/DIV 1 Ps/DIV Figure 49. 1000 pF and no Snubber Figure 50. 1000 pF with Snubber BRIDGE CONFIGURATION AMPLIFIER Some applications may benefit from doubling the voltage across the load.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 + R7 10 k: + C1 1 PF 5V V A2 A1 R2 100 k: - RL - V VL R5 100 k: + V + VIN C4 .1 PF - - R1 100 k: C3 .01 PF C2 .01 PF + V www.ti.com V R6 100 k: SD SD R3 100 k: R4 100 k: Figure 51. Bridge Amplifier • • • C2 and C3 are .01 μF ceramic capacitors that must be located as close as possible to pin 6, the V+ pin.
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LMV951 www.ti.com SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 R3 1 k: R1 10 k: C2 10 PF C6 .01 PF + V + C1 1 PF SENSOR C3 20 PF CABLE 3V 3V 3V R4 1 k: R5 10 k: R2 10 k: - V + A1 - V C4 1 PF R6 10 k: SD + A2 - C5 10 PF C6 .01 PF OUTPUT - V SD 200 mV/DIV 200 mV/DIV Figure 52. Two Wire Line Driver INPUT = 1 VPP INPUT = 1 VPP 5 Ps/DIV 1 Ps/DIV Figure 53. 25 kHz Through 1000 ft. Figure 54. 200 kHz Through 50 ft. The power supply of 3V is recommended to power this system.
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LMV951 SNOSAI3C – OCTOBER 2006 – REVISED APRIL 2013 www.ti.com REVISION HISTORY Changes from Revision B (April 2013) to Revision C • 18 Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LMV951MK/NOPB SOT DDC 6 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMV951MKX/NOPB SOT DDC 6 3000 178.0 8.4 3.2 3.2 1.4 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMV951MK/NOPB SOT DDC 6 1000 210.0 185.0 35.0 LMV951MKX/NOPB SOT DDC 6 3000 210.0 185.0 35.
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