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Texas Instruments LMP7712MM/NOPB
- Part No.:
- LMP7712MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP7712MM/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,312
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Product details
Overview
LMP7712MM/NOPB from Texas Instruments is a dual-channel, precision CMOS-input operational amplifier with rail-to-rail output swing, 17 MHz gain bandwidth product, ±150 μV max input offset voltage, and 5.8 nV/√Hz input voltage noise density at 1 kHz - deployed in sensor interface and transimpedance amplifier circuits requiring high fidelity at low supply voltages.
For engineers reviewing the LMP7712MM/NOPB datasheet, LMP7712MM/NOPB pinout, LMP7712MM/NOPB application, or LMP7712MM/NOPB equivalent, key selection criteria include input bias current (≤100 fA), shutdown current (140 nA per channel), VSSOP-10 package compatibility, and operation across 1.8V–5.5V supply with −40°C to +125°C temperature range.
Technical Context
The LMP7712MM/NOPB implements a CMOS input stage enabling ultra-low input bias current (100 fA max) and low input voltage noise (5.8 nV/√Hz), paired with an advanced feedback topology that delivers 46 mA sourcing capability at 5 V. Its enable pin supports independent per-channel shutdown, reducing supply current to 140 nA per channel.
It features rail-to-rail output swing (within 25 mV of either rail at RL = 2 kΩ), wide common-mode input range (−0.3 V to VS − 0.3 V), and stable unity-gain operation up to 120 pF capacitive load - all while maintaining 85 dB minimum PSRR and 85 dB minimum CMRR over frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 17 MHz - enables accurate closed-loop amplification at high gains up to ~100 kHz for AV = 100. |
| Input Offset Voltage (max) | ±150 μV - ensures ≤150 μV DC error at room temperature, critical for precision DC-coupled signal chains. |
| Input Voltage Noise Density | 5.8 nV/√Hz @ 1 kHz - preserves SNR in low-level analog front-ends such as photodiode transimpedance stages. |
| Supply Current (per channel) | 1.30 mA - supports battery-powered instrumentation with low quiescent power budget. |
| Shutdown Current (per channel) | 140 nA - allows dynamic power gating in duty-cycled sensor nodes without external switches. |
| Rail-to-Rail Output Swing | Within 25 mV of rails @ RL = 2 kΩ - maximizes dynamic range in single-supply 3.3 V or 5 V systems. |
| Operating Temperature Range | −40°C to +125°C - qualified for automotive cabin, industrial control, and harsh-environment monitoring. |
Pinout & Package
Package: 10-pin VSSOP (Package Code DGS), 3.0 mm × 3.0 mm footprint, 0.5 mm pitch, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load; rail-to-rail capable; connects directly to feedback network or next stage. |
| 2 (−IN A) | Inverting input A | High-impedance node (CMOS); accepts feedback or signal source; sensitive to stray capacitance. |
| 3 (+IN A) | Non-inverting input A | High-impedance node; used for reference, sensor bias, or direct signal injection. |
| 4 (V−) | Negative supply rail | Ground reference for single-supply operation or negative rail in dual-supply configurations. |
| 5 (V+) | Positive supply rail | Accepts 1.8 V to 5.5 V; powers both channels and internal bias circuitry. |
| 6 (OUT B) | Amplifier B output | Independent output; identical performance to OUT A; enables dual-path signal conditioning. |
| 7 (−IN B) | Inverting input B | Electrically isolated from Channel A; supports differential or independent signal paths. |
| 8 (+IN B) | Non-inverting input B | Independent high-Z input; enables dual-sensor or multi-stage filtering topologies. |
| 9 (EN B) | Channel B enable | Active-high logic input; pulls low (<0.4 V) to disable Channel B and reduce its supply current to 140 nA. |
| 10 (EN A) | Channel A enable | Active-high logic input; independent control allows asymmetric power management per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable pins | Per-channel shutdown reduces system power by >99% when one amplifier is idle - no external FET required. |
| 100 fA max input bias current | Enables high-impedance sensor interfaces (e.g., pH electrodes, piezoresistive bridges) without significant DC error. |
| 5.8 nV/√Hz input voltage noise | Supports sub-microvolt signal amplification in medical ECG front-ends and precision weigh scales. |
| Rail-to-rail output with 46 mA drive | Drives 600 Ω loads directly (e.g., audio line drivers, ADC input buffers) without external boost stages. |
| Stable with 120 pF capacitive load | Eliminates need for isolation resistors in many layout-constrained applications (e.g., PCB trace capacitance). |
Applications
| Active Filters and Buffers | Sensor Interface Applications |
|---|---|
Use Scenario: Second-order Sallen-Key low-pass filter in portable gas analyzer front-end. IC Role / Device Role / Timing Role: Dual op-amp implements filter transfer function and output buffer; Channel A handles filtering, Channel B provides buffered output. Use Value: 17 MHz GBW ensures phase margin >60° at cutoff; rail-to-rail swing preserves full-scale resolution into 16-bit SAR ADC. | Use Scenario: Bridge-based strain gauge readout in industrial load cell module. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end (gain = 100) using matched LMP7712 channels for differential gain and offset trimming. Use Value: ±150 μV VOS and <1 μV/°C drift minimize calibration frequency; 100 fA IB prevents bridge imbalance errors. |
| Transimpedance Amplifiers | Medical Signal Conditioning |
Use Scenario: Photodiode current-to-voltage conversion in pulse oximeter LED driver feedback loop. IC Role / Device Role / Timing Role: Single channel configured as TIA with 1 MΩ feedback resistor; low input noise preserves weak optical signal integrity. Use Value: 5.8 nV/√Hz noise dominates over Johnson noise of feedback resistor below 100 kHz, maximizing SNR. | Use Scenario: Low-noise biopotential amplifier for wearable ECG patch with dry electrodes. IC Role / Device Role / Timing Role: Dual-channel AC-coupled amplifier: Channel A for right-leg drive (RLD), Channel B for lead-I differential gain. Use Value: 100 fA IB avoids electrode polarization artifacts; shutdown capability extends battery life during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AIDR | Zero-drift architecture; 0.003 μV/°C offset drift vs. LMP7712MM/NOPB's ±4 μV/°C; higher supply current (1.2 mA/channel vs. 1.30 mA). | Better long-term DC stability in uncalibrated systems; less suitable for battery-constrained designs due to lack of enable pin. | Select OPA2188AIDR when ultra-low drift dominates over power and enable functionality. |
| ADA4625-2ARMZ | Higher GBW (34 MHz); lower noise (2.9 nV/√Hz); no enable pin; 12-lead MSOP package. | Superior for wideband sensor excitation or active filter tuning above 1 MHz; lacks per-channel shutdown for power-gated architectures. | Select ADA4625-2ARMZ when bandwidth and noise are prioritized over power control and VSSOP footprint. |
Compared with OPA2188AIDR and ADA4625-2ARMZ, the LMP7712MM/NOPB uniquely balances low noise, low IB, rail-to-rail output, and dual enable control in a space-efficient VSSOP-10 package - making it optimal for portable, multi-channel, power-aware precision analog systems.
Availability
LMP7712MM/NOPB is available at Aetrix Electronics and suitable for active filters and buffers, sensor interface applications, transimpedance amplifiers, and medical signal conditioning requiring stable component supply across industrial, medical, and portable electronics programs.
Supply support for LMP7712MM/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 precision amplifier innovation and broad application support infrastructure.
The LMP7712MM/NOPB belongs to TI's LMP™ precision amplifier family, engineered for high-accuracy, low-power signal conditioning in instrumentation, sensor front-ends, and portable measurement systems.
FAQ
What is the maximum capacitive load the LMP7712MM/NOPB can drive without oscillation?
The LMP7712MM/NOPB is stable driving up to 120 pF capacitive load in unity-gain follower configuration, as verified in TI's characterization data. This eliminates the need for isolation resistors in many PCB layouts where trace capacitance or small bypass caps are present. For loads exceeding 120 pF, a series isolation resistor (RISO) between the output and load is recommended to maintain phase margin above 45°.
Does the LMP7712MM/NOPB support true single-supply operation with input voltage extending below ground?
Yes - the LMP7712MM/NOPB features a common-mode input voltage range extending to −0.3 V (300 mV below V−), enabling true single-supply operation with inputs referenced to ground. This allows direct interfacing with sensors whose outputs swing slightly negative relative to ground, such as certain thermocouples or bridge configurations with offset biasing.
What is the typical turn-on time for the enable function of the LMP7712MM/NOPB?
The typical turn-on time (ton) for each channel of the LMP7712MM/NOPB is 114 ns at V+ = 5 V, measured from EN rising past 4.6 V to output settling within 1% of final value. This fast wake-up supports microsecond-scale power cycling in time-triggered sensor acquisition systems without introducing timing jitter or settling delays.
Can the LMP7712MM/NOPB be used in a transimpedance amplifier with >10 MΩ feedback resistance?
Yes - the LMP7712MM/NOPB's 100 fA max input bias current minimizes DC error in high-value TIA configurations. At 10 MΩ, IB contributes only 1 μV of offset error. However, input capacitance (~3.5 pF common-mode) must be compensated with feedback capacitor CF (e.g., 0.5–2 pF) to prevent peaking or instability, especially above 10 kHz.
Is the LMP7712MM/NOPB RoHS-compliant and lead-free?
Yes - the LMP7712MM/NOPB is RoHS-compliant and lead-free, as indicated by the "/NOPB" suffix in the part number. It meets JEDEC J-STD-020 moisture sensitivity level 2a (MSL-2a) and is qualified for standard reflow soldering profiles including peak temperatures up to 260°C for 10 seconds in wave soldering.
LMP7712MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 11.5V/µs
- Gain Bandwidth Product:
- 17 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 1.3mA (x2 Channels)
- Current - Output / Channel:
- 66 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
LMP7712MM/NOPB FAQ
1.How can I place an order for LMP7712MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7712MM/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 LMP7712MM/NOPB reliable?
The price and inventory of LMP7712MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7712MM/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7712MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7712MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7712MM/NOPB?
LMP7712MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7712MM/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 LMP7712MM/NOPB?
For technical support, including LMP7712MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7712MM/NOPB requirements.
6.How does Aetrix verify that LMP7712MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7712MM/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 LMP7712MM/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7712MM/NOPB?
All LMP7712MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7712MM/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 LMP7712MM/NOPB part is unused and in its original packaging.
Return procedure for LMP7712MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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