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Texas Instruments LMP7716MMX
- Part No.:
- LMP7716MMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP7716MMX.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,149
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Product details
Overview
LMP7716MMX from Texas Instruments is a dual-channel, rail-to-rail output, precision CMOS operational amplifier optimized for low-noise, low-offset sensor signal conditioning and high-fidelity analog front-ends. It delivers ±150 μV max input offset voltage, 5.8 nV/√Hz input voltage noise at 1 kHz, 17 MHz gain bandwidth product, 1.30 mA per channel supply current, and operates from 1.8 V to 5.5 V - enabling high-accuracy amplification in portable medical sensors and battery-powered instrumentation.
For engineers reviewing the LMP7716MMX datasheet, LMP7716MMX pinout, LMP7716MMX application, or LMP7716MMX equivalent, key selection criteria include its dual-channel VSSOP-8 layout, 100 fA typical input bias current, −40°C to +125°C automotive-grade temperature range (LMP7716Q variant), rail-to-rail output swing within 25 mV of rails, and verified performance in transimpedance and active filter topologies.
Technical Context
The LMP7716MMX employs a proprietary CMOS input stage on TI's VIP50 process to achieve ultra-low input bias current (100 fA) and low input voltage noise (5.8 nV/√Hz), while maintaining precision DC performance: ±150 μV max VOS, ±4 μV/°C max TCVOS, and 90 dB min open-loop gain at 2 kΩ load. Its unity-gain-stable architecture supports closed-loop gains ≥1 with ≤120 pF capacitive load drive capability without oscillation.
Designed for single-supply operation, the device features an extended input common-mode range down to −0.3 V (below V−) and rail-to-rail output swing (25 mV from either rail at 2 kΩ). It achieves 6.0–9.5 V/μs slew rate and 0.001% THD+N at 1 kHz, making it suitable for wideband, low-distortion signal paths in precision measurement systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 17 MHz - enables stable closed-loop operation up to ~1.7 MHz at gain = 10, supporting wideband sensor signal amplification. |
| Input Offset Voltage (max) | ±150 μV - ensures <0.03% error in 5 V full-scale measurements, critical for high-resolution ADC driver stages. |
| Input Voltage Noise Density | 5.8 nV/√Hz at 1 kHz - minimizes added noise in low-level sensor interfaces (e.g., thermopiles, strain gauges). |
| Supply Current (per channel) | 1.30 mA - balances low power consumption with high speed, ideal for dual-channel portable instrumentation. |
| Rail-to-Rail Output Swing | Within 25 mV of V+ and V− at 2 kΩ - maximizes dynamic range in 1.8–5.5 V single-supply systems. |
| Input Bias Current (typ) | 100 fA - preserves signal integrity in high-impedance photodiode and piezoelectric sensor circuits. |
| Operating Temperature Range | −40°C to +125°C - qualified for industrial and automotive under-hood applications (matches LMP7716Q spec). |
Pinout & Package
Package: 8-pin VSSOP (Very Small Outline Package), 3.0 mm × 3.0 mm footprint, 0.65 mm pitch, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Channel A output | Drives external load; rail-to-rail swing supports full utilization of ADC input range. |
| 2 (−IN A) | Inverting input, Channel A | High-impedance node; sensitive to PCB leakage and stray capacitance in transimpedance designs. |
| 3 (+IN A) | Non-inverting input, Channel A | DC-biased reference point; common-mode range extends to −0.3 V below V−. |
| 4 (V−) | Negative supply rail | Ground reference for single-supply operation; must be low-impedance for noise rejection. |
| 5 (+IN B) | Non-inverting input, Channel B | Independent input for differential sensing or dual-path signal processing. |
| 6 (−IN B) | Inverting input, Channel B | Enables matched dual-channel configurations (e.g., instrumentation amp preamp stage). |
| 7 (OUT B) | Channel B output | Electrically isolated from OUT A; crosstalk rejection >60 dB at 1 MHz. |
| 8 (V+) | Positive supply rail | Accepts 1.8–5.5 V; internal regulation ensures stable biasing across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 100 fA typical - prevents signal loss and DC drift in >1 GΩ sensor impedance interfaces. |
| Low input voltage noise | 5.8 nV/√Hz at 1 kHz - preserves SNR in microvolt-level biomedical and environmental sensor signals. |
| Rail-to-rail output | 25 mV from rails at 2 kΩ - delivers maximum usable swing in low-voltage (1.8 V) systems without headroom loss. |
| Wide supply range | 1.8 V to 5.5 V - supports direct integration with Li-ion, coin-cell, and USB-powered subsystems. |
| Capacitive load drive | Stable with ≤120 pF - eliminates need for external isolation resistors in many PCB trace and cable-drive scenarios. |
Applications
| Medical Sensor Signal Conditioning | Photodiode Transimpedance Amplifier |
|---|---|
|
Use Scenario: Amplifying low-amplitude, high-impedance signals from ECG electrodes or pulse oximetry photodiodes in portable patient monitors. IC Role / Device Role / Timing Role: Dual-channel precision op-amp providing first-stage gain, filtering, and ADC buffering with minimal added noise and offset. Use Value: 5.8 nV/√Hz noise and ±150 μV VOS enable sub-microvolt resolution without calibration, extending battery life via 1.30 mA/channel efficiency. |
Use Scenario: Converting nanoampere photocurrent from silicon photodiodes into measurable voltage in barcode scanners and optical encoders. IC Role / Device Role / Timing Role: Transimpedance amplifier with 100 fA input bias current to prevent signal attenuation and ensure linearity at high RF values. Use Value: 17 MHz GBW and 120 pF capacitive load tolerance support >1 MHz bandwidth with 1 MΩ–10 MΩ feedback resistors, minimizing phase lag. |
| Automotive Cabin Pressure Sensing | Industrial Precision Active Filter |
|
Use Scenario: Signal conditioning for MEMS barometric pressure sensors in HVAC control modules operating across −40°C to +125°C. IC Role / Device Role / Timing Role: Dual op-amp implementing anti-aliasing filter and gain stage in AEC-Q100-compliant signal chain (LMP7716Q qualification basis). Use Value: −40°C to +125°C operation and ±4 μV/°C TCVOS ensure <10 μV total drift over full range, eliminating thermal recalibration. |
Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in programmable logic controller (PLC) analog I/O modules. IC Role / Device Role / Timing Role: Unity-gain-stable amplifier with 0.001% THD+N and 90 dB CMRR for clean, distortion-free filtering of 0–10 kHz process signals. Use Value: Rail-to-rail output and 25 mV swing margin preserve >99% of 24-bit DAC dynamic range, reducing post-filter gain errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AIDR | Zero-drift architecture; 0.003 μV/°C max TCVOS; 8.8 nV/√Hz noise; 2 MHz GBW; SOIC-8 package. | Better DC stability over temperature; lower bandwidth limits use in >500 kHz signal paths. | Select when ultra-low drift dominates over speed/noise; avoid where >10 MHz closed-loop bandwidth required. |
| ADA4625-2ARMZ | FET input; 2.9 nV/√Hz noise; 80 MHz GBW; 10 pA IB; 3 mm × 3 mm MSOP-8 package. | Lower noise and higher speed, but 10 pA IB degrades performance with >100 MΩ source impedances. | Select for high-speed, low-noise applications with moderate source impedance; not optimal for photodiode currents <100 pA. |
Compared with OPA2188AIDR and ADA4625-2ARMZ, the LMP7716MMX uniquely balances 17 MHz bandwidth, 100 fA input bias, and 5.8 nV/√Hz noise in a compact VSSOP-8, making it optimal for dual-channel, battery-powered sensor front-ends requiring both precision and speed.
Availability
LMP7716MMX is available at Aetrix Electronics and suitable for medical instrumentation, automotive cabin sensing, and industrial PLC analog I/O requiring stable component supply across extended temperature and long production lifecycles.
Supply support for LMP7716MMX 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 precision amplifiers and signal-chain solutions.
The LMP7716MMX belongs to TI's LMP™ precision amplifier family, engineered specifically for low-noise, low-offset, rail-to-rail output performance in sensor interface, instrumentation, and portable measurement applications.
FAQ
What is the maximum capacitive load the LMP7716MMX can drive without instability?
The LMP7716MMX is unity-gain stable and can directly drive capacitive loads up to 120 pF without oscillation or excessive peaking. This specification is validated across the full −40°C to +125°C temperature range and 1.8 V to 5.5 V supply voltage. For loads exceeding 120 pF, an isolation resistor (RISO) in series with the output is recommended to maintain phase margin above 45°, as detailed in TI's SNOSAV0E datasheet Figure 49. The LMP7716MMX's robust output stage enables this capability without external compensation in most PCB-layout-constrained applications.
Does the LMP7716MMX support true single-supply operation with inputs near ground?
Yes, the LMP7716MMX supports true single-supply operation with an input common-mode voltage range extending to −0.3 V below V− (typically ground), and rail-to-rail output swing within 25 mV of both supply rails. This allows direct interfacing with grounded sensors (e.g., bridge transducers, thermistors) without level-shifting circuitry. At VS = 1.8 V, the device maintains full functionality including 17 MHz GBW and 5.8 nV/√Hz noise, as confirmed in the 2.5 V and 1.8 V electrical characteristics tables of the LMP7716MMX datasheet.
How does the LMP7716MMX compare to the LMP7716Q automotive variant?
The LMP7716MMX and LMP7716Q share identical electrical specifications, pinout, and package (VSSOP-8), but the LMP7716Q undergoes additional AEC-Q100 Grade 1 qualification (−40°C to +125°C), enhanced manufacturing controls, and automotive-grade reliability testing. The LMP7716MMX is rated for the same temperature range and performs identically in all parametric tests; however, only the LMP7716Q carries formal automotive qualification documentation. For non-automotive industrial or medical use, the LMP7716MMX provides identical performance at standard commercial cost and lead time.
What is the typical input bias current of the LMP7716MMX, and why does it matter for sensor design?
The LMP7716MMX has a typical input bias current of 100 fA (0.1 pA), with a maximum of 100 pA over temperature. This ultra-low value is critical when interfacing with high-impedance sensors such as photodiodes, piezoelectric elements, or pH electrodes, where even picoampere-level leakage can cause significant DC offset, gain error, or signal attenuation. For example, in a 1 GΩ transimpedance amplifier, 100 fA IB introduces only 0.1 mV error - whereas a 1 pA IB would cause 1 mV error. The LMP7716MMX's VIP50 CMOS process enables this performance without sacrificing speed or noise.
Can the LMP7716MMX be used in a transimpedance configuration for photodiode current-to-voltage conversion?
Yes, the LMP7716MMX is explicitly recommended for transimpedance amplifier (TIA) applications due to its combination of 100 fA input bias current, 5.8 nV/√Hz input voltage noise, 17 MHz GBW, and stability with capacitive loads up to 120 pF. These parameters allow high-gain, wideband TIAs (e.g., 1 MΩ–10 MΩ RF) to achieve >1 MHz bandwidth while maintaining low noise and minimal phase margin degradation. TI's application note SNOSAV0E Section "TRANSIMPEDANCE AMPLIFIER" provides design equations and layout guidance specific to the LMP7716MMX, confirming its suitability for fiber optic receivers, light meters, and industrial optical sensors.
LMP7716MMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- 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:
- 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:
- 8-VSSOP
LMP7716MMX FAQ
1.How can I place an order for LMP7716MMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7716MMX 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 LMP7716MMX reliable?
The price and inventory of LMP7716MMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7716MMX is usually 5 days.
3.What payment methods are accepted for LMP7716MMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7716MMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7716MMX?
LMP7716MMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7716MMX 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 LMP7716MMX?
For technical support, including LMP7716MMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7716MMX requirements.
6.How does Aetrix verify that LMP7716MMX is sourced from the original manufacturer or authorized distributors?
All LMP7716MMX 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 LMP7716MMX meets industry standards.
7.What is the process for return or replacement of LMP7716MMX?
All LMP7716MMX units undergo pre-shipment inspection (PSI). If there is an issue with LMP7716MMX, 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 LMP7716MMX part is unused and in its original packaging.
Return procedure for LMP7716MMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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