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Texas Instruments LMP7712MME/NOPB
- Part No.:
- LMP7712MME/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP7712MME/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,818
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Product details
Overview
LMP7712MME/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 - designed for high-fidelity sensor interface and transimpedance amplifier circuits in low-voltage portable instrumentation.
For engineers reviewing the LMP7712MME/NOPB datasheet, LMP7712MME/NOPB pinout, LMP7712MME/NOPB application, or LMP7712MME/NOPB equivalent, key selection criteria include its dual-channel VSSOP-10 package, enable pin per channel (VEN), ultra-low 100 fA input bias current, −40°C to +125°C operating range, and verified performance under 1.8V–5.5V supply.
Technical Context
The LMP7712MME/NOPB integrates two independent precision op-amps on a single die using TI's VIP50 CMOS process, each featuring an enable control pin enabling independent shutdown (140 nA per channel). Its architecture delivers rail-to-rail output swing within 25 mV of either rail at 2 kΩ load while maintaining >84 dB open-loop gain and >85 dB PSRR across 1.8V–5.5V supply.
It achieves low-noise amplification via optimized input stage design: 5.8 nV/√Hz voltage noise and 0.01 pA/√Hz current noise at 1 kHz, combined with 100 fA typical input bias current and ±150 μV max offset - enabling accurate DC-coupled signal conditioning in photodiode, strain gauge, and medical sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 17 MHz - supports stable closed-loop gain ≥10 at 1.7 MHz, suitable for anti-aliasing filters and active instrumentation amplifiers. |
| Input Offset Voltage (max) | ±150 μV - ensures ≤1.5 mV total error in 10 V full-scale 16-bit systems without trimming. |
| Input Bias Current (typ) | 100 fA - enables leakage-limited sensor interfaces (e.g., pH electrodes, piezoelectric sensors) with minimal signal corruption. |
| Voltage Noise Density | 5.8 nV/√Hz @ 1 kHz - preserves SNR in low-amplitude, wideband signals such as ECG preamplifiers and optical receivers. |
| Supply Voltage Range | 1.8 V to 5.5 V - compatible with single-cell Li-ion (3.0–3.7 V), coin-cell (3 V), and 3.3 V/5 V logic rails without level-shifting. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin modules, industrial PLC analog I/O, and downhole sensing environments. |
| Enable Pin Function | Per-channel shutdown (VEN ≤ 0.4 V) draws only 140 nA - reduces system standby power by >99% vs active mode (1.3 mA/channel). |
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 | Rail-to-rail sourcing/sinking output capable of driving 2 kΩ load to within 25 mV of V+ or V−. |
| 2 - IN− A | Inverting input A | High-impedance CMOS node; input capacitance 5.5 pF (common-mode) affects stability with high-Z feedback networks. |
| 3 - IN+ A | Non-inverting input A | Matched to IN− A; common-mode range extends to −0.3 V below V−, enabling true single-supply operation. |
| 4 - V− | Negative supply rail | Ground reference for dual-supply use or system ground in single-supply configurations. |
| 5 - V+ | Positive supply rail | Accepts 1.8–5.5 V; internal regulation ensures consistent biasing across supply range. |
| 6 - OUT B | Amplifier B output | Independent output; no crosstalk >120 dB at 1 kHz (verified in datasheet Figure 20). |
| 7 - IN− B | Inverting input B | Electrically isolated from Channel A; layout symmetry recommended to minimize inter-channel coupling. |
| 8 - IN+ B | Non-inverting input B | Matches Channel A specs; supports differential pair configurations with matched gain/phase response. |
| 9 - EN B | Channel B enable | Active-high control; <0.4 V disables Channel B, reducing quiescent current to 140 nA. |
| 10 - EN A | Channel A enable | Independent enable allows dynamic power gating of individual amplifiers in multi-stage signal chains. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 25 mV of V+ or V− at 2 kΩ load - maximizes dynamic range in 3.3 V or lower supply systems. |
| Ultra-low input bias current | 100 fA typical - eliminates significant error in high-impedance sensor nodes (e.g., >100 MΩ photodiode TIA feedback). |
| Dual independent enable pins | Per-channel shutdown with 140 nA sleep current - enables selective power management in battery-powered multi-sensor nodes. |
| Low THD+N | 0.001% @ 1 kHz, 4 VPP, RL = 100 kΩ - preserves signal integrity in audio-grade and precision measurement paths. |
| Wide supply range | 1.8 V to 5.5 V operation - eliminates need for dedicated LDOs in mixed-voltage embedded systems. |
| High CMRR & PSRR | ≥85 dB CMRR and PSRR over 1.8–5.5 V - rejects supply ripple and common-mode interference in noisy industrial environments. |
Applications
| Photodiode Transimpedance Amplifier | Medical Sensor Front-End |
|---|---|
Use Scenario: Converting weak photocurrent (pA–nA) from silicon photodiodes into measurable voltage in pulse oximeters and blood analyzers. IC Role / Device Role / Timing Role: Precision current-to-voltage conversion with ultra-low input bias current and low voltage noise to preserve SNR. Use Value: Enables detection of sub-nA photocurrents with <1 μV RMS noise floor, critical for low-perfusion patient monitoring. |
Use Scenario: Amplifying microvolt-level bio-potential signals (ECG, EEG) in portable diagnostic devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with rail-to-rail output and 17 MHz GBW for anti-alias filtering. Use Value: Delivers >110 dB CMRR and <0.001% THD+N at 1 kHz, meeting IEC 60601-2-27 ECG accuracy requirements. |
| Industrial Strain Gauge Interface | Portable Gas Sensor Signal Chain |
Use Scenario: Conditioning Wheatstone bridge outputs (2–20 mV full scale) in load cells and pressure transducers. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier core with matched input pairs and enable control. Use Value: ±150 μV max offset and −1.75 μV/°C drift ensure <0.1% FS error over −40°C to +85°C without calibration. |
Use Scenario: Amplifying low-current outputs (nA–μA) from electrochemical gas sensors in handheld air quality monitors. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one channel for sensor biasing, one for current amplification. Use Value: Independent enable pins allow sensor bias circuit to remain active while measurement channel powers down between readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AIDR | No enable pin; 0.03 μV/°C max TCVOS vs. LMP7712MME/NOPB's ±4 μV/°C; 6.5 nV/√Hz noise. | Better DC stability for ultra-low-drift applications; lacks per-channel shutdown for power-constrained designs. | Select when long-term offset drift dominates power budget concerns. |
| ADA4625-2ARMZ | Higher 24 MHz GBW; 2.9 nV/√Hz noise; requires ≥4.5 V supply; no enable function. | Superior bandwidth/noise for high-speed photodiode or ultrasound front-ends; incompatible with 1.8–3.3 V systems. | Select when >17 MHz bandwidth and sub-3 nV/√Hz noise justify higher supply and missing enable functionality. |
Compared with OPA2188AIDR and ADA4625-2ARMZ, the LMP7712MME/NOPB uniquely balances ultra-low bias current (100 fA), dual enable control, 1.8 V operation, and 17 MHz bandwidth - making it optimal for battery-powered, multi-sensor systems requiring selective power gating and high-impedance signal integrity.
Availability
LMP7712MME/NOPB is available at Aetrix Electronics and suitable for portable medical diagnostics, industrial sensor nodes, and handheld environmental monitors requiring stable component supply, extended temperature qualification, and long-term production continuity.
Supply support for LMP7712MME/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 industrial qualification.
The LMP7712MME/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for low-noise, low-offset, rail-to-rail output performance in space-constrained, low-power instrumentation applications.
FAQ
What is the maximum capacitive load the LMP7712MME/NOPB can drive without instability?
The LMP7712MME/NOPB is characterized to drive up to 120 pF directly in unity-gain follower configuration without oscillation. For loads exceeding 120 pF, an isolation resistor (RISO) must be placed in series with the output to maintain phase margin above 45°, as detailed in TI's application note SNOSAP4F Figure 54. This requirement applies independently to each channel of the LMP7712MME/NOPB.
Does the LMP7712MME/NOPB support true single-supply operation with input voltages extending below ground?
Yes - the LMP7712MME/NOPB features an input common-mode voltage range that extends to −0.3 V below V−, allowing direct interfacing with signals referenced below ground in single-supply systems. This capability is confirmed in the 5V Electrical Characteristics table (CMVR = −0.3 V to 4 V) and enables robust operation with AC-coupled or bipolar sensor outputs without level-shifting circuitry in the LMP7712MME/NOPB signal path.
How does the enable pin functionality differ between the two channels of the LMP7712MME/NOPB?
The LMP7712MME/NOPB provides fully independent enable control: Pin 9 (EN B) controls Channel B, and Pin 10 (EN A) controls Channel A. Each pin operates identically - asserting ≥4.6 V (at 5 V supply) enables the respective amplifier, while ≤0.4 V places it in shutdown, drawing only 140 nA. This independence allows asymmetric power management, such as keeping Channel A active for bias generation while shutting down Channel B during idle periods in the LMP7712MME/NOPB.
What is the guaranteed input offset voltage specification for the LMP7712MME/NOPB over temperature?
The LMP7712MME/NOPB guarantees a maximum input offset voltage of ±450 μV over the full −40°C to +125°C operating range, as specified in the 5V Electrical Characteristics table. At 25°C, the limit is tighter: ±150 μV max. The typical offset voltage drift is −1.75 μV/°C, meaning worst-case drift contributes ≤700 μV over the full temperature span - a value included in the ±450 μV limit, ensuring the LMP7712MME/NOPB meets its published specification without derating.
Can the LMP7712MME/NOPB be used in a transimpedance amplifier with >1 GΩ feedback resistance?
Yes - the LMP7712MME/NOPB's 100 fA typical input bias current makes it suitable for TIA configurations with feedback resistances up to 10 GΩ in low-frequency (<10 kHz), low-noise applications. However, input capacitance (5.5 pF common-mode) must be compensated using feedback capacitance (CF) per TI's Figure 56–58 to prevent peaking or oscillation. Layout best practices (guard rings, short traces) are essential to preserve the LMP7712MME/NOPB's ultra-low bias current advantage at high impedances.
LMP7712MME/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
LMP7712MME/NOPB FAQ
1.How can I place an order for LMP7712MME/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7712MME/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 LMP7712MME/NOPB reliable?
The price and inventory of LMP7712MME/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7712MME/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7712MME/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7712MME/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7712MME/NOPB?
LMP7712MME/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7712MME/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 LMP7712MME/NOPB?
For technical support, including LMP7712MME/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7712MME/NOPB requirements.
6.How does Aetrix verify that LMP7712MME/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7712MME/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 LMP7712MME/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7712MME/NOPB?
All LMP7712MME/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7712MME/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 LMP7712MME/NOPB part is unused and in its original packaging.
Return procedure for LMP7712MME/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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