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LM7332

www.ti.com

SNOSAV4A –APRIL 2008–REVISED MARCH 2013

LM7332 Dual Rail-to-Rail Input/Output 30V, Wide Voltage Range, High Output Operational

Amplifier

Check for Samples: LM7332

FEATURES

DESCRIPTION

The LM7332 is a dual rail-to-rail input and output

• (V

= ±15V, T

= 25°C, Typical Values Unless

amplifier with a wide operating temperature range

Specified.)

(−40°C to +125°C) which meets the needs of

• Wide Supply Voltage Range 2.5V to 32V

automotive, industrial and power supply applications.

• Wide Input Common Mode Voltage 0.3V

The LM7332 has the output current of 100 mA which

is higher than that of most monolithic op amps. Circuit

Beyond Rails

designs with high output current requirements often

• Output Short Circuit Current >100 mA

need to use discrete transistors because many op

• High Output Current (1V from Rails) ±70 mA

amps have low current output. The LM7332 has

• GBWP 21 MHz

enough current output to drive many loads directly,

saving the cost and space of the discrete transistors.

• Slew Rate 15.2 V/µs

The exceptionally wide operating supply voltage

• Capacitive Load Tolerance Unlimited

range of 2.5V to 32V alleviates any concerns over

• Total Supply Current 2.0 mA

functionality under extreme conditions and offers

• Temperature Range −40°C to +125°C

flexibility of use in a multitude of applications. Most of

• Tested at −40°C, +125°C,

this device's parameters are insensitive to power

supply variations; this design enhancement is another

and 25°C at 5V, ±5V, ±15V

step in simplifying usage. Greater than rail-to-rail

input common mode voltage range allows operation

APPLICATIONS

in many applications, including high side and low side

• MOSFET and Power Transistor Driver

sensing, without exceeding the input range.

• Replaces Discrete Transistors in High Current

The LM7332 can drive unlimited capacitive loads

Output Circuits

without oscillations.

• Instrumentation 4-20 mA Current Loops

The LM7332 is offered in the 8-pin VSSOP and SOIC

• Analog Data Transmission

packages.

• Multiple Voltage Power Supplies and Battery

Chargers

• High and Low Side Current Sensing

• Bridge and Sensor Driving

• Digital to Analog Converter Output

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)

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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 LM7332 Dual Rail-to-Rail Input/Output 30V, Wide Voltage Range, High Output Operational Amplifier Check for Samples: LM7332 FEATURES DESCRIPTION • The LM7332 is a dual rail-to-rail input and output amplifier with a wide operating temperature range (−40°C to +125°C) which meets the needs of automotive, industrial and power supply applications. The LM7332 has the output current of 100 mA which is higher than that of most monolithic op amps.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com Key Graphs Output Swing vs. Sourcing Current Large Signal Step Response for Various Capacitive Loads 100 VS = 30V 10 pF VS = 10V, AV = +1, RL = 1 M: VOUT FROM RAIL (V) 10 5V/DIV 2000 pF 125°C 1 85°C 10,000 pF -40°C 0.1 25°C 20,000 pF 0.01 0.1 1 10 100 2 Ps/DIV 1000 ISOURCE (mA) This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 5V Electrical Characteristics (1) Unless otherwise specified, all limits are ensured for TA = 25°C, V+ = 5V, V− = 0V, VCM = 0.5V, VO = 2.5V, and RL > 1 MΩ to 2.5V. Boldface limits apply at the temperature extremes. Symbol VOS Parameter Input Offset Voltage Condition Min (2) −4 VCM = 0.5V and VCM = 4.5V Typ (3) ±1.6 –5 TC VOS Input Offset Voltage Temperature Drift VCM = 0.5V and VCM = 4.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com 5V Electrical Characteristics (1) (continued) Unless otherwise specified, all limits are ensured for TA = 25°C, V+ = 5V, V− = 0V, VCM = 0.5V, VO = 2.5V, and RL > 1 MΩ to 2.5V. Boldface limits apply at the temperature extremes. Symbol Parameter in Input Referred Current Noise THD+N CT Rej. Condition Min (2) (3) Max (2) Units 1.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 ±5V Electrical Characteristics (1) (continued) Unless otherwise specified, all limits are ensured for TA = 25°C, V+ = +5V, V− = −5V, VCM = 0V, VO = 0V, and RL > 1 MΩ to 0V. Boldface limits apply at the temperature extremes.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com ±15V Electrical Characteristics (1) (continued) Unless otherwise specified, all limits are ensured for TA = 25°C, V+ = +15V, V− = −15V, VCM = 0V, VO = 0V, and RL > 1 MΩ to 0V. Boldface limits apply at the temperature extremes.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 Typical Performance Characteristics Unless otherwise specified, TA = 25°C. VOS vs. VCM (Unit 1) VOS Distribution 12 0.2 VS = 10V 10 0.1 25°C 0.05 8 VOS (mV) PERCENTAGE (%) 85°C 0.15 6 4 0 125°C -0.05 -0.1 -40°C -0.15 -0.2 2 -0.25 0 -3 -2 -1 0 1 2 VS = 5V -0.3 -1 3 0 1 2 Figure 4. VOS vs. VCM (Unit 2) VOS vs. VCM (Unit 3) 5 6 2.5 125°C 125°C -1.5 85°C 2 25°C VOS (mV) -2 VOS (mV) 4 Figure 3. -1 -2.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. VOS vs. VCM (Unit 3) 2 VOS vs. VS (Unit 1) -0.6 125°C 85°C -0.7 1.5 -0.8 VOS (mV) VOS (mV) -0.9 25°C 1 -40°C 0.5 -40°C -1 -1.1 25°C -1.1 85°C -1.2 0 -1.3 -0.5 -5 0 125°C -1.4 VS = 30V 5 10 15 20 25 30 -1.5 35 0 10 20 VCM (V) Figure 9. Figure 10. VOS vs. VS (Unit 2) VOS vs. VS (Unit 3) 1 0.9 0.8 25°C 0.8 85°C 85°C 0.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. IS vs. VCM IS vs. VCM 3.5 3.5 VS = 5V VS = 12V 3 3 125°C 2.5 2.5 2 IS (mA) IS (mA) 125°C 85°C 1.5 25°C 1 2 85°C 1.5 25°C 1 -40°C 0.5 0.5 -40°C 0 0 -1 0 1 2 3 4 5 6 -1 3 1 5 9 11 Figure 15. Figure 16. IS vs. VCM IS vs. Supply Voltage 13 3.6 4 VS = 30V 3.4 3.5 3.2 3 125°C 3 125°C 85°C 2.8 IS (mA) 2.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. Output Swing vs. Sinking Current Output Swing vs. Sourcing Current 100 10 VS = 5V VS = 30V VOUT FROM RAIL (V) VOUT FROM RAIL (V) 10 1 125°C 85°C 0.1 25°C 1 125°C 25°C 85°C -40°C 0.1 0.01 -40°C 0.001 0.1 1 10 100 0.01 0.01 1000 10 1 0.1 ISOURCE (mA) Figure 21. Figure 22. Output Swing vs. Sourcing Current Positive Output Swing vs.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. Negative Output Swing vs.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. Phase Margin vs.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. Step Response for Various Amplitudes Step Response for Various Amplitudes 100 mVPP 100 mVPP VS = 10V, AV = +1, CL = 10 pF, RL = 1 M: VS = 10V, AV = +1, CL = 500 pF, RL = 1 M: 1 VPP 1 VPP 2 VPP 2 VPP 5 VPP 5 VPP 500 ns/DIV 200 ns/DIV Figure 39. Figure 40. Large Signal Step Response for Various Capacitive Loads Input Referred Noise Density vs.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, TA = 25°C. THD+N vs. Output Amplitude (VPP) THD+N vs. Output Amplitude (VPP) 0 VS = 5V -10 f = 1 kHz 0 VS = 10V -10 f = 1 kHz THD+N (dB) THD+N (dB) -20 AV = +2 R = 100 k: -30 L -40 -50 -60 -20 AV = +2 -30 RL = 100 k: -40 -50 -60 -70 -70 -80 -80 -90 -90 -100 0.02 0.1 1 -100 0.02 6 OUTPUT AMPLITUDE (VPP) 0 Figure 46. THD+N vs.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 APPLICATION INFORMATION ADVANTAGES OF THE LM7332 Wide Operating Voltage Range The LM7332 has an operating voltage from 2.5V to 32V which makes it suitable for industrial and automotive applications. RRIO with 100 mA Output Current The LM7332 takes advantages of Texas Instruments' VIP3 process which enables high current driving from the rails. Rail-to-rail output swing provides the maximum possible output dynamic range.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com Output current drive is an important parameter when driving capacitive loads. This parameter will determine how fast the output voltage can change. Referring to Figure 49, two distinct regions can be identified. Below about 10,000 pF, the output Slew Rate is solely determined by the op amp’s compensation capacitor value and available current into that capacitor. Beyond 10 nF, the Slew Rate is determined by the op amp’s available output current.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 10 20: 2 k: 1 k: 600: - VOUT FROM V (V) 1 100m 10m 200: 100: 50: VS = 10V VID = -20 mV 1m 10µ 100µ 1m 10m 100m IOUT (A) Figure 51. Steady State Output Sinking Characteristics with Load Lines OUTPUT SHORT CIRCUIT CURRENT AND DISSIPATION ISSUES The LM7332 output stage is designed for maximum output current capability.
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com The table entries are normalized to VS2/RL. To figure out the AC load current component of power dissipation, simply multiply the table entry corresponding to the output waveform by the factor VS2/RL. For example, with ±12V supplies, a 600Ω load, and triangular waveform power dissipation in the output stage is calculated as: PAC = (46.9 x 10−3) · [242/600] = 45.
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LM7332 www.ti.com SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 APPLICATION HINTS ON SUPPLY DECOUPLING The use of supply decoupling is mandatory in most applications. As with most relatively high speed/high output current op amps, best results are achieved when each supply line is decoupled with two capacitors; a small value ceramic capacitor (∼0.01 µF) placed very close to the supply lead in addition to a large value Tantalum or Aluminum capacitor (> 4.7 µF).
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LM7332 SNOSAV4A – APRIL 2008 – REVISED MARCH 2013 www.ti.com REVISION HISTORY Changes from Original (March 2013) to Revision A • 20 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 11-Apr-2013 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Mar-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 LM7332MAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LM7332MM/NOPB VSSOP DGK 8 1000 178.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 LM7332MME/NOPB VSSOP DGK 8 250 178.0 12.4 5.3 3.4 1.4 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM7332MAX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LM7332MM/NOPB VSSOP DGK 8 1000 210.0 185.0 35.0 LM7332MME/NOPB VSSOP DGK 8 250 210.0 185.0 35.0 LM7332MMX/NOPB VSSOP DGK 8 3500 367.0 367.0 35.
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