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Texas Instruments LM7322MME/NOPB
- Part No.:
- LM7322MME/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM7322MME/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,982
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Product details
Overview
LM7322MME/NOPB from Texas Instruments is a dual rail-to-rail input/output operational amplifier designed for high-output-current, wide-supply-voltage applications requiring stable performance across automotive and industrial environments. It delivers ±125mA output current, 24MHz gain bandwidth, 35V/µs slew rate, unlimited capacitive load drive capability, and operates from ±1.35V to ±16V (2.7V–32V total). It is AEC-Q100 Grade 1 qualified and used in high-side sensing, MOSFET gate driving, and photodiode biasing.
For engineers reviewing the LM7322MME/NOPB datasheet, LM7322MME/NOPB pinout, LM7322MME/NOPB application, or LM7322MME/NOPB equivalent, key selection criteria include its rail-to-rail I/O swing with 0.1V beyond rails common-mode range, ±125mA drive strength at ±15V, −113dB THD+N at 1kHz, 12nV/√Hz input voltage noise, and guaranteed operation from −40°C to +125°C.
Technical Context
The LM7322MME/NOPB employs a robust output stage enabling stable operation into unlimited capacitive loads without external compensation-critical for TFT panel buffers and ADC driver stages. Its input stage supports common-mode voltages from (V−) −0.1V to (V+) +0.1V and maintains >90dB CMRR across 2.7V–32V supply range, enabling accurate high- and low-side current sensing.
It achieves 24MHz unity-gain bandwidth and 35V/µs slew rate while drawing only 1.35mA per channel, making it suitable for power-constrained systems. Device parameters-including offset voltage drift (±2.5µV/°C), PSRR (>74dB), and supply-insensitive gain-remain stable across voltage and temperature, simplifying design in variable-supply automotive and battery-powered equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 32V total (±1.35V to ±16V); enables single- or dual-supply operation in 3.3V, 5V, 12V, and 24V systems. |
| Output Current | ±125mA per amplifier at ±15V; sufficient to directly drive power transistors, MOSFET gates, or optocouplers without external buffers. |
| Gain Bandwidth Product | 24MHz; supports closed-loop gains up to ~24 at 1MHz or unity gain at 24MHz for precision signal conditioning and fast settling. |
| Slew Rate | 35V/µs; ensures minimal distortion on large-signal transients (e.g., 10V step in <300ns) in active filter and driver applications. |
| Input Voltage Noise | 12nV/√Hz at 2kHz; low enough for precision sensor amplification (e.g., photodiode, strain gauge) without dominating system noise floor. |
| Capacitive Load Drive | Unlimited; eliminates need for isolation resistors or compensation networks when driving ADC inputs, LCD column drivers, or long cables. |
| Operating Temperature | −40°C to +125°C; fully specified for under-hood automotive, industrial motor control, and harsh-environment embedded systems. |
Pinout & Package
DGK package: 8-pin VSSOP (3.00mm × 3.00mm), thermally enhanced, surface-mount, lead-free (RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Output for Amplifier A | Full rail-to-rail swing output capable of sourcing/sinking ±125mA; connects directly to load without series resistance. |
| −IN A (Pin 2) | Inverting Input for Amplifier A | Differential input node with rail-to-rail common-mode range; accepts signals 0.1V beyond either supply rail. |
| +IN A (Pin 3) | Non-inverting Input for Amplifier A | High-impedance input (IB = 0.4µA max) for reference or sensor signal routing; supports high-side or low-side sensing topologies. |
| V− (Pin 4) | Negative Supply | Ground or negative rail connection; must be decoupled locally with ≥0.1µF ceramic capacitor for stability. |
| V+ (Pin 8) | Positive Supply | Positive rail connection; supports up to +16V; requires local 0.1µF ceramic bypass near pin. |
| −IN B (Pin 6) | Inverting Input for Amplifier B | Independent input for second channel; identical electrical specs to Amplifier A; enables dual-channel feedback or differential pair configurations. |
| +IN B (Pin 5) | Non-inverting Input for Amplifier B | Second high-impedance input; allows independent signal conditioning paths (e.g., one channel for sensing, one for reference buffering). |
| OUT B (Pin 7) | Output for Amplifier B | Second rail-to-rail output; electrically isolated from OUT A; supports independent loading up to ±125mA each. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output swing | Enables full dynamic range utilization in low-voltage (2.7V) and high-voltage (32V) supplies-no headroom loss at signal extremes. |
| Unlimited capacitive load tolerance | Eliminates need for external isolation resistors or phase-compensation networks when driving ADCs, display drivers, or long traces. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications operating from −40°C to +125°C ambient, including engine control and ADAS sensor interfaces. |
| Low input voltage noise (12nV/√Hz) | Preserves SNR in precision analog front-ends-critical for photodiode biasing, current shunt amplification, and low-level sensor signal chains. |
| High output current (±125mA) | Directly drives power devices (MOSFETs, IGBTs), analog optocouplers, and varactor diodes without discrete buffer stages. |
Applications
| High-Side Current Sensing | Photodiode Biasing |
|---|---|
Use Scenario: Monitoring battery pack or motor phase current using a shunt resistor placed between load and positive supply rail. IC Role / Device Role / Timing Role: Differential amplifier configured as current-sense amplifier with rail-to-rail input accepting common-mode voltage up to (V+) +0.1V. Use Value: Enables accurate measurement at high common-mode voltages without level-shifting circuitry or dedicated current-sense ICs. | Use Scenario: Providing stable reverse-bias voltage to a photodiode in optical smoke detection or medical pulse oximetry. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with low input current noise (0.5pA/√Hz) and rail-to-rail output swing to maximize dynamic range. Use Value: Delivers high linearity and low dark-current error over −40°C to +125°C, supporting reliable low-light signal integrity. |
| MOSFET Gate Driving | Capacitive Proximity Sensing |
Use Scenario: Directly switching N-channel MOSFETs in DC-DC converter synchronous rectifiers or motor H-bridge half-bridges. IC Role / Device Role / Timing Role: High-current buffer amplifier driving gate capacitance with 35V/µs slew rate and ±125mA peak current. Use Value: Reduces gate charge time and switching losses versus standard op-amps-enabling higher-frequency PWM operation. | Use Scenario: Oscillator-based proximity detection using variable capacitance between PCB trace and human body. IC Role / Device Role / Timing Role: Unity-gain stable amplifier sustaining oscillation into variable capacitive load (pF to nF range) without tuning. Use Value: Eliminates need for external compensation components-reducing BOM count and improving production yield in touchless UI modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current, rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM7322MM/NOPB | Same die and specifications; differs only in tape-and-reel packaging (MME = 1,000-unit reel, MM = 250-unit reel). | No functional difference; identical electrical behavior and thermal performance in all operating conditions. | Select LM7322MM/NOPB for low-volume prototyping or small-batch builds where smaller reels reduce inventory overhead. |
| OPA2350UA/2K5 | Lower output current (±40mA), lower GBW (38MHz), no AEC-Q100 qualification; uses different input stage architecture (CMOS vs bipolar). | Not suitable for direct MOSFET gate drive or high-current sensing; limited to low-power signal conditioning in commercial-grade systems. | Choose OPA2350UA/2K5 only if supply current (<1.5mA) and speed are prioritized over drive strength and automotive qualification. |
Compared with LM7322MM/NOPB, the LM7322MME/NOPB offers identical performance but optimized for high-volume automated assembly via larger reel size; versus OPA2350UA/2K5, it provides 3× higher output current, AEC-Q100 compliance, and superior capacitive load stability-making it the only viable option for automotive-grade power interface circuits.
Availability
LM7322MME/NOPB is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor control feedback loops, and high-reliability power supply monitoring requiring stable component supply across extended temperature and voltage ranges.
Supply support for LM7322MME/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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The LM7322x product line was engineered for demanding power interface and precision sensing applications-specifically targeting high-output-current, wide-supply, and automotive-qualified operational amplifiers that maintain rail-to-rail performance across extreme voltage and temperature conditions.
FAQ
What is the maximum capacitive load the LM7322MME/NOPB can drive without instability?
The LM7322MME/NOPB is explicitly designed to drive unlimited capacitive loads without oscillation or phase-margin degradation. This is verified across 10pF to 10µF loads in TI's characterization data (Figure 5-31, Figure 6-1), eliminating the need for external isolation resistors in ADC driver, display buffer, or cable-driving applications. The LM7322MME/NOPB maintains >20° phase margin even at 10µF with 600Ω series resistance.
Does the LM7322MME/NOPB support true rail-to-rail input common-mode voltage?
Yes-the LM7322MME/NOPB accepts input common-mode voltages from (V−) −0.1V to (V+) +0.1V, exceeding rail-to-rail by 100mV on both sides. This enables direct high-side sensing (e.g., shunt above positive rail) and low-side sensing (shunt below ground) without level-shifting circuitry. CMRR remains >90dB across this full range at ±15V supply.
Is the LM7322MME/NOPB qualified for automotive applications?
Yes-LM7322MME/NOPB is AEC-Q100 Grade 1 qualified (−40°C to +125°C ambient), with full electrical characterization and reliability testing performed per automotive standards. It is listed in TI's official automotive-grade portfolio and used in production engine control units, battery management systems, and ADAS sensor signal conditioning.
What is the typical supply current per channel for the LM7322MME/NOPB?
The LM7322MME/NOPB draws 1.35mA per channel at 25°C under typical operating conditions (VS = ±15V, RL = 10kΩ, VCM = VS/2). Total quiescent current is 2.7mA for both amplifiers. Over temperature (−40°C to +125°C), supply current remains tightly bounded at ≤2.23mA per channel, ensuring predictable power budgeting in thermally constrained designs.
Can the LM7322MME/NOPB drive a 2kΩ load to rail with ±15V supplies?
Yes-LM7322MME/NOPB delivers rail-to-rail output swing into 2kΩ loads: output voltage swings within 50mV of either rail (V+ or V−) at ±15V supply, per Electrical Characteristics Table (VOUT High/Low, RL = 2kΩ). At 125°C, worst-case swing degrades to ≤280mV from rail-still sufficient for most comparator or logic-interface applications.
LM7322MME/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:
- 18V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1.1 µA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 2.5mA (x2 Channels)
- Current - Output / Channel:
- 100 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
LM7322MME/NOPB FAQ
1.How can I place an order for LM7322MME/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM7322MME/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 LM7322MME/NOPB reliable?
The price and inventory of LM7322MME/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM7322MME/NOPB is usually 5 days.
3.What payment methods are accepted for LM7322MME/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM7322MME/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM7322MME/NOPB?
LM7322MME/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM7322MME/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 LM7322MME/NOPB?
For technical support, including LM7322MME/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM7322MME/NOPB requirements.
6.How does Aetrix verify that LM7322MME/NOPB is sourced from the original manufacturer or authorized distributors?
All LM7322MME/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 LM7322MME/NOPB meets industry standards.
7.What is the process for return or replacement of LM7322MME/NOPB?
All LM7322MME/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM7322MME/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 LM7322MME/NOPB part is unused and in its original packaging.
Return procedure for LM7322MME/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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