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LMV981-N, LMV982-N

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SNOS976L –NOVEMBER 2001–REVISED MARCH 2013

LMV981-N Single / LMV982 Dual 1.8V, RRIO Operational Amplifiers with Shutdown

Check for Samples: LMV981-N, LMV982-N

FEATURES

DESCRIPTION

LMV981-N/LMV982 are low voltage, low power

• (Typical 1.8V Supply Values; Unless Otherwise

operational amplifiers. LMV981-N/LMV982 operate

Noted)

from +1.8V to +5.0V supply voltages and have rail-to-

• Ensured 1.8V, 2.7V and 5V Specifications

rail input and output. LMV981-N/LMV982 input

• Output Swing

common mode voltage extends 200mV beyond the

supplies which enables user enhanced functionality

– w/600Ω load 80mV from Rail

beyond the supply voltage range. The output can

– w/2kΩ load 30mV from Rail

swing rail-to-rail unloaded and within 105mV from the

• V

200mV Beyond Rails

rail with 600Ω load at 1.8V supply. LMV981-

N/LMV982 are optimized to work at 1.8V which make

• Supply Current (Per Channel) 100μA

them ideal for portable two-cell battery powered

• Gain Bandwidth Product 1.4MHz

systems and single cell Li-Ion systems.

• Maximum V

4.0mV

LMV981-N/LMV982 offer a shutdown pin that can be

• Gain w/600Ω Load 101dB

used to disable the device and reduce the supply

• Ultra Tiny Package DSBGA 1.0mm x 1.5mm

current. The device is in shutdown when the SHDN-

pin = low. The output will be high impedance in

• Turn-On Time from Shutdown 19μs

shutdown.

• Temperature Range −40°C to 125°C

LMV981-N/LMV982 exhibit excellent speed-power

ratio, achieving 1.4MHz gain bandwidth product at

APPLICATIONS

1.8V supply voltage with very low supply current.

• Industrial and Automotive

LMV981-N/LMV982 are capable of driving a 600Ω

• Consumer Communication

load and up to 1000pF capacitive load with minimal

ringing. LMV981-N/LMV982 have a high DC gain of

• Consumer Computing

101dB, making them suitable for low frequency

• PDAs

applications.

• Portable audio

LMV981-N is offered in space saving 6-Bump

• Portable/Battery-Powered Electronic

DSBGA, SC70-6 and SOT-23-6 packages. The 6-

Equipment

Bump DSBGA package has only a 1.006mm x

1.514mm x 0.945mm footprint. LMV982 is offered in

• Supply Current Monitoring

space saving VSSOP-10 package. These small

• Battery Monitoring

packages are ideal solutions for area constrained PC

boards and portable electronics such as cellular

phones and PDAs.

Typical Application

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 (27 pages)

PAGE 1
LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 LMV981-N Single / LMV982 Dual 1.8V, RRIO Operational Amplifiers with Shutdown Check for Samples: LMV981-N, LMV982-N FEATURES DESCRIPTION • LMV981-N/LMV982 are low voltage, low power operational amplifiers. LMV981-N/LMV982 operate from +1.8V to +5.0V supply voltages and have rail-torail input and output.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 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 (1) (2) (3) Machine Model 200V Human Body Model 2000V Supply Voltage (V+–V −) 5.5V Differential Input Voltage ± Supply Voltage Voltage at Input/Output Pins V++0.3V, V--0.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 1.8V DC Electrical Characteristics (continued) Unless otherwise specified, all limits ensured for TJ = 25°C. V+ = 1.8V, V − = 0V, VCM = V+/2, VO = V+/2, RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (1). Parameter Test Conditions Min (2) Typ (3) Max (2) IOS Input Offset Current 13 25 40 IS Supply Current (per channel) 103 185 205 LMV981-N (Single) 0.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com 1.8V AC Electrical Characteristics Unless otherwise specified, all limits ensured for TJ = 25°C. V+ = 1.8V, V − = 0V, VCM = V+/2, VO = V+/2, RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (1). Parameter SR Slew Rate GBW Φm Test Conditions See Min (2) (3) Typ (4) Max (2) Units 0.35 V/μs Gain-Bandwidth Product 1.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 2.7V DC Electrical Characteristics (continued) Unless otherwise specified, all limits ensured for TJ = 25°C. V+ = 2.7V, V − = 0V, VCM = V+/2, VO = V+/2, RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (1). Parameter CMRR Common Mode Rejection Ratio Test Conditions LMV982, 0 ≤ VCM ≤ 1.5V 2.3V ≤ VCM ≤ 2.7V (4) 55 50 80 −0.2V ≤ VCM ≤ 0V 2.7V ≤ VCM ≤ 2.9V 50 74 75 70 100 V− −0.2 −0.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com 2.7V AC Electrical Characteristics Unless otherwise specified, all limits ensured for TJ = 25°C. V+ = 2.7V, V − = 0V, VCM = 1.0V, VO = 1.35V, RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (1). Parameter SR Slew Rate GBW Φm Test Conditions Min (2) (4) Typ (3) Max (2) Units 0.4 V/µs Gain-Bandwidth Product 1.4 MHz Phase Margin 70 deg Gm Gain Margin 7.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 5V DC Electrical Characteristics (continued) Unless otherwise specified, all limits ensured for TJ = 25°C. V+ = 5V, V − = 0V, VCM = V+/2, VO = V+/2, RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (1). Parameter Test Conditions Min + PSRR Power Supply Rejection Ratio 1.8V ≤ V ≤ 5V VCM = 0.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com 5V AC Electrical Characteristics (continued) Unless otherwise specified, all limits ensured for TJ = 25°C. V+ = 5V, V − = 0V, VCM = V+/2, VO = 2.5V, R L > 1 MΩ and SHDN tied to V+.Boldface limits apply at the temperature extremes. See (1). Parameter THD Test Conditions Total Harmonic Distortion (2) f = 1kHz, AV = +1 RL = 600Ω, VO = 1V PP (5) Amp-to-Amp Isolation (5) Min Typ (3) Max (2) Units 0.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 Typical Performance Characteristics Unless otherwise specified, VS = +5V, single supply, TA = 25°C. Supply Current vs. Supply Voltage (LMV981-N) Sourcing Current vs. Output Voltage 100 160 125°C VS = 5V 10 120 ISOURCE (mA) SUPPLY CURRENT (éA) 140 85°C 100 25°C 80 -40°C 60 VS = 2.7V 1 VS = 1.8V 0.1 40 20 1 2 3 4 0.01 0.001 5 Output Voltage Swing vs.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, VS = +5V, single supply, TA = 25°C. Gain and Phase vs. Frequency Gain and Phase vs. Frequency 60 135.0 60 112.5 50 VS = 5.0V CL = 1000pF 67.5 GAIN 45.0 10 100k 1M 30 -40°C GAIN 10 0.0 0 -22.5 10 M -10 10k 125°C 100k Figure 11. Gain and Phase vs. Frequency CMRR vs. Frequency VS = 5.0V 135. 0 RL = 600: 112.5 VS = 5V 85 90.0 67.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise specified, VS = +5V, single supply, TA = 25°C. Input Current Noise vs. Frequency THD vs. Frequency 10 1 1 THD (%) INPUT CURRENT NOISE (pA/ Hz) RL = 600: AV = +1 0.1 1.8V 0.1 2.7V 5V 0.01 10 100 1k 10k 0.01 10 100k 10k 1k 100 100k FREQUENCY (Hz) FREQUENCY (Hz) Figure 16. Figure 17. THD vs. Frequency Slew Rate vs. Supply Voltage 0.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, VS = +5V, single supply, TA = 25°C. Large Signal Non-Inverting Response VIN VS = 5V (900 mV/div) RL = 2 k: (50 mV/DIV) OUTPUT SIGNAL INPUT SIGNAL Small Signal Non-Inverting Response VOUT VS = 1.8V RL = 2k: AV = +1 TIME (10 Ps/div) TIME (2.5 Ps/DIV) Figure 22. Figure 23.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise specified, VS = +5V, single supply, TA = 25°C. Offset Voltage vs. Common Mode Range Offset Voltage vs. Common Mode Range 3 3 VS = 1.8V VS = 2.7V 2.5 2.5 2 2 25°C -40°C 1.5 VOS (mV) VOS (mV) 25°C 1 0.5 85°C 1 0.5 85°C 125°C 125°C 0 0 -0.5 -0.5 -1 -0.4 0 0.4 0.8 -40°C 1.5 1.2 2 1.6 -1 -0.4 2.4 VCM (V) 0.1 0.6 1.1 1.6 2.1 2.6 3.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com APPLICATION NOTE Input and Output Stage The rail-to-rail input stage of this family provides more flexibility for the designer. The LMV981-N/LMV982 use a complimentary PNP and NPN input stage in which the PNP stage senses common mode voltage near V− and the NPN stage senses common mode voltage near V+. The transition from the PNP stage to NPN stage occurs 1V below V+.
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LMV981-N, LMV982-N www.ti.com SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 Figure 31. Canceling the Offset Voltage due to Input Bias Current Typical Applications High Side Current Sensing The high side current sensing circuit (Figure 32) is commonly used in a battery charger to monitor charging current to prevent over charging. A sense resistor RSENSE is connected to the battery directly. This system requires an op amp with rail-to-rail input.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com In Figure 33 the circuit is referenced to ground, while in Figure 34 the circuit is biased to the positive supply. These configurations implement the half wave rectifier since the LMV981-N/LMV982 can not respond to one-half of the incoming waveform. It can not respond to one-half of the incoming because the amplifier can not swing the output beyond either rail therefore the output disengages during this half cycle.
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LMV981-N, LMV982-N www.ti.
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LMV981-N, LMV982-N SNOS976L – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com REVISION HISTORY Changes from Revision K (March 2013) to Revision L • 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 OPTION ADDENDUM www.ti.com 1-Nov-2013 (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-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) LMV981MF SOT-23 DBV 6 1000 178.0 8.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.2 3.2 1.4 4.0 8.0 Q3 LMV981MF/NOPB SOT-23 DBV 6 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMV981MFX/NOPB SOT-23 DBV 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 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMV981MF SOT-23 DBV 6 1000 210.0 185.0 35.0 LMV981MF/NOPB SOT-23 DBV 6 1000 210.0 185.0 35.0 LMV981MFX/NOPB SOT-23 DBV 6 3000 210.0 185.0 35.0 LMV981MG SC70 DCK 6 1000 210.0 185.0 35.0 LMV981MG/NOPB SC70 DCK 6 1000 210.0 185.0 35.0 LMV981MGX/NOPB SC70 DCK 6 3000 210.0 185.0 35.
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MECHANICAL DATA YZR0006xxx D 0.600±0.075 E TLA06XXX (Rev C) D: Max = 1.565 mm, Min =1.504 mm E: Max = 1.057 mm, Min =0.996 mm 4215044/A NOTES: A. All linear dimensions are in millimeters. Dimensioning and tolerancing per ASME Y14.5M-1994. B. This drawing is subject to change without notice. www.ti.
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