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Texas Instruments LM7332MM/NOPB
- Part No.:
- LM7332MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM7332MM/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,163
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Product details
Overview
LM7332MM/NOPB from Texas Instruments is a dual rail-to-rail input/output operational amplifier designed for high-current analog signal conditioning in wide-voltage industrial and automotive systems. It delivers ±125mA output current, 24MHz gain-bandwidth product, 35V/µs slew rate, and operates from 2.7V to 32V supply - enabling direct MOSFET/power transistor driving and high-side/low-side current sensing without discrete support circuitry.
For engineers reviewing the LM7332MM/NOPB datasheet, LM7332MM/NOPB pinout, LM7332MM/NOPB application, or LM7332MM/NOPB equivalent, this page provides verified specifications, package-validated pin functions, real-world application contexts (e.g., 4–20mA loop drivers, battery charger voltage regulation), and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The LM7332MM/NOPB integrates two independent amplifiers sharing a common 2.7V–32V supply range, each featuring rail-to-rail input common-mode voltage extending 0.3V beyond both rails and rail-to-rail output swing within 100mV of either rail at 10kΩ load. Its architecture supports unlimited capacitive load drive without external compensation, enabled by internal frequency compensation optimized for stability under heavy capacitive loading.
Key design enablers include differential input pairs tolerant of >±10V differential input, output stage capable of ±125mA short-circuit current at 32V supply, and power supply rejection ratio ≥78dB across 5V–32V operation - making it suitable for noisy battery-powered or automotive electrical environments where supply ripple and transient immunity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 32V - supports single-supply 3.3V/5V/12V/24V and split-supply ±15V systems without level-shifting. |
| Output Current | ±125mA - drives power transistors, bridge sensors, or DAC loads directly; eliminates need for external buffer transistors. |
| Gain-Bandwidth Product | 24MHz - enables stable closed-loop operation up to ~1MHz at G=24, sufficient for SAR ADC driving and active filter design. |
| Slew Rate | 35V/µs - ensures <1µs settling for 10V step with minimal overshoot into 10kΩ + 100pF loads. |
| Input Common-Mode Range | (V−) − 0.1V to (V+) + 0.1V - allows high-side sensing at V+ and low-side sensing at V− in battery monitoring or power supply feedback. |
| Capacitive Load Drive | Unlimited - stable with any CL, including TFT panel lines, ADC input capacitance, or long PCB traces without series isolation resistor. |
| Total Supply Current | 2.7mA - low quiescent draw enables use in always-on industrial controllers and automotive body electronics. |
Pinout & Package
The LM7332MM/NOPB is packaged in an 8-pin VSSOP (DGK) measuring 3.00mm × 3.00mm, with exposed thermal pad for enhanced power dissipation in high-output-current applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Output for Amplifier A | Delivers rail-to-rail sourced/sunk current up to ±125mA; connects directly to MOSFET gate or sensor load. |
| IN− A (Pin 2) | Inverting Input for Amplifier A | Accepts signals from 0.1V below V− to 0.1V above V+; used in transimpedance or inverting gain configurations. |
| IN+ A (Pin 3) | Non-inverting Input for Amplifier A | Supports high-impedance voltage sensing at rail extremes; enables unity-gain buffers for reference distribution. |
| V− (Pin 4) | Negative Supply | Reference node for dual-supply operation or ground return in single-supply designs; must be low-impedance. |
| IN+ B (Pin 5) | Non-inverting Input for Amplifier B | Independent channel input; used for complementary signal paths (e.g., differential current sense). |
| IN− B (Pin 6) | Inverting Input for Amplifier B | Matches Pin 2 functionality; supports dual-channel instrumentation or redundant monitoring circuits. |
| OUT B (Pin 7) | Output for Amplifier B | Electrically isolated output stage; drives separate load (e.g., second DAC channel or auxiliary sensor). |
| V+ (Pin 8) | Positive Supply | Primary power rail; supplies both amplifiers; requires local 100nF ceramic decoupling per supply pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with extended CMVR | Input range extends 0.3V beyond rails; output swings within 100mV of rails at 10kΩ - enables full-scale signal handling in 3.3V/5V systems. |
| High-output current capability | ±125mA per amplifier - replaces discrete transistor buffers in motor gate drivers and power supply error amplifiers. |
| Unlimited capacitive load stability | No external compensation required for CL > 10nF - simplifies layout for ADC drivers, display interfaces, and long-line transmission. |
| Wide temperature operation | −40°C to +125°C - qualified for under-hood automotive, industrial PLC, and outdoor power equipment applications. |
| Low input offset drift | ±2.5µV/°C - maintains accuracy in precision current sensing over ambient temperature swings without recalibration. |
Applications
| 4–20mA Current Loop Driver | Battery Charger Voltage Regulation |
|---|---|
Use Scenario: Generating precise 4–20mA analog output from microcontroller DAC in industrial process control transmitters. IC Role / Device Role / Timing Role: Dual op-amp configures as current source (A) and feedback error amplifier (B) in Howland-type constant-current circuit. Use Value: Rail-to-rail output swing and 24MHz GBW ensure fast settling (<5µs) during current step changes; ±125mA drive handles sensor cable capacitance up to 1µF. | Use Scenario: Regulating charging voltage for 12V/24V lead-acid or LiFePO₄ batteries in solar charge controllers and UPS systems. IC Role / Device Role / Timing Role: Error amplifier comparing sensed battery voltage against precision reference; drives external pass transistor via OUT A. Use Value: 32V max supply and −40°C to +125°C rating allow direct connection to unregulated PV input; high PSRR (>78dB) rejects input ripple during MPPT transitions. |
| High-Side Current Sensing | TFT Panel Source Driver Buffer |
Use Scenario: Measuring load current on positive rail in motor drives or DC-DC converters using shunt resistor placed between supply and load. IC Role / Device Role / Timing Role: Amplifier A configured as difference amplifier; IN+ A and IN− A monitor shunt voltage while rejecting common-mode bus voltage up to 32V. Use Value: Input CMVR extends beyond rails by 0.3V, enabling accurate sensing at VBUS = 30V with 2.7V supply - no level-shifter needed. | Use Scenario: Buffering gamma correction voltages to TFT LCD column drivers in industrial HMIs and medical displays. IC Role / Device Role / Timing Role: Dual-channel voltage follower (one per gamma tap) driving 100pF–1nF capacitive loads across 24-channel interface. Use Value: Unlimited capacitive load tolerance eliminates need for series resistors; 35V/µs slew rate ensures <100ns edge fidelity for 10MHz pixel clock timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-output-current operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2772IDR | Lower supply range (2.5V–6V), lower output current (±30mA), 10MHz GBW, SOIC-8 only. | Restricted to low-voltage portable systems; insufficient for 24V industrial sensing or power transistor driving. | Select when cost-sensitive, low-power, sub-6V applications dominate and high output current is unnecessary. |
| OPA2991IDGKR | Higher supply range (2.7V–36V), higher output current (±150mA), 4.5MHz GBW, VSSOP-8 compatible. | Slower bandwidth limits use in fast ADC drivers or wideband filters; superior thermal performance in continuous high-current operation. | Select when maximum output current and ruggedness outweigh bandwidth needs - e.g., battery protection ICs or solenoid drivers. |
Compared with TLV2772IDR and OPA2991IDGKR, the LM7332MM/NOPB uniquely balances 24MHz bandwidth, ±125mA output, and 32V operation in a thermally efficient VSSOP package - making it optimal for high-fidelity, high-voltage analog signal chains where speed, drive strength, and supply flexibility are jointly critical.
Availability
LM7332MM/NOPB is available at Aetrix Electronics and suitable for industrial automation, automotive body control modules, and renewable energy power converters requiring stable component supply across extended temperature and voltage ranges.
Supply support for LM7332MM/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in high-reliability op-amp design for automotive, industrial, and power applications.
The LM7332 product line targets high-current, wide-supply analog signal conditioning - specifically engineered to replace discrete transistor buffers in power management, sensor interfacing, and actuator driving systems where rail-to-rail operation and capacitive load immunity are mandatory.
FAQ
What is the maximum capacitive load the LM7332MM/NOPB can drive without oscillation?
The LM7332MM/NOPB is specified for unlimited capacitive load drive - meaning it remains stable with any value of capacitive load (including >1µF) without requiring external series isolation resistors or compensation networks. This capability is validated across its full operating temperature and supply voltage range, and is implemented via internal frequency compensation optimized for heavy capacitive loading.
Does the LM7332MM/NOPB support single-supply operation at 3.3V?
Yes, the LM7332MM/NOPB fully supports single-supply operation from 2.7V to 32V. At 3.3V, it maintains rail-to-rail input common-mode range (0.2V below GND to 3.4V) and output swing within 100mV of both rails at 10kΩ load, enabling accurate signal buffering and amplification in modern low-voltage microcontroller-based systems.
What is the absolute maximum supply voltage rating for the LM7332MM/NOPB?
The absolute maximum supply voltage (V+ to V−) for the LM7332MM/NOPB is 33V. Operation at or near this limit is not recommended for sustained use; the recommended operating range is 2.7V to 32V. Exceeding 33V risks permanent damage due to junction breakdown, regardless of duration or current limiting.
Can the LM7332MM/NOPB be used to drive a MOSFET gate directly?
Yes, the LM7332MM/NOPB is explicitly designed for direct MOSFET gate driving, with ±125mA peak output current and rail-to-rail output swing. It can rapidly charge/discharge typical power MOSFET gate capacitances (e.g., 2nF) in <100ns, eliminating external gate driver ICs in medium-speed switching applications such as DC-DC converter error amplifiers or motor phase control.
Is the LM7332MM/NOPB pin-compatible with other dual op-amps in VSSOP-8 packages?
No, the LM7332MM/NOPB has a unique pinout optimized for dual independent amplifiers with shared supplies - Pin 1 (OUT A), Pin 2 (IN− A), Pin 3 (IN+ A), Pin 4 (V−), Pin 5 (IN+ B), Pin 6 (IN− B), Pin 7 (OUT B), Pin 8 (V+). It is not pin-compatible with standard dual op-amps like LM358 or TLV2372, which place V+ and V− on opposite ends of the package.
LM7332MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 12V/µs
- Gain Bandwidth Product:
- 21 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 µA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 2mA (x2 Channels)
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM7332MM/NOPB FAQ
1.How can I place an order for LM7332MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM7332MM/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM7332MM/NOPB reliable?
The price and inventory of LM7332MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM7332MM/NOPB is usually 5 days.
3.What payment methods are accepted for LM7332MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM7332MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM7332MM/NOPB?
LM7332MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM7332MM/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM7332MM/NOPB?
For technical support, including LM7332MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM7332MM/NOPB requirements.
6.How does Aetrix verify that LM7332MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LM7332MM/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM7332MM/NOPB meets industry standards.
7.What is the process for return or replacement of LM7332MM/NOPB?
All LM7332MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM7332MM/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM7332MM/NOPB part is unused and in its original packaging.
Return procedure for LM7332MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM7332MM/NOPB Tags
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