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Texas Instruments LMP7708MME/NOPB
- Part No.:
- LMP7708MME/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP7708MME/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:164
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Product details
Overview
LMP7708MME/NOPB from Texas Instruments is a dual-channel, decompensated, precision CMOS-input operational amplifier with rail-to-rail input and output, ±220 µV max input offset voltage, 14 MHz gain bandwidth product at AV = 10, and 1.5 mA supply current per channel - designed for high-impedance sensor interface and battery-powered instrumentation requiring stable performance across −40°C to +125°C.
For engineers reviewing the LMP7708MME/NOPB datasheet, LMP7708MME/NOPB pinout, LMP7708MME/NOPB application, or LMP7708MME/NOPB equivalent, this page delivers verified specifications, package mapping (8-pin VSSOP), real-world use cases, and validated alternative options - all grounded in TI's SNOSAW5B datasheet and official parametric data.
Technical Context
The LMP7708MME/NOPB uses VIP50 CMOS process technology to achieve ultra-low input bias current (±200 fA) while supporting 2.7V–12V supply range and rail-to-rail common-mode input voltage (−0.2 V to VS + 0.2 V). Its decompensated architecture ensures stability only at closed-loop gains ≥6, enabling higher bandwidth than unity-gain-stable counterparts at identical supply current.
It features a trimmed complementary CMOS input stage that minimizes CMRR glitches near rails, delivering 130 dB typical CMRR and 130 dB open-loop gain. Output swing is specified to within 40 mV of either rail under 2 kΩ load, preserving dynamic range in low-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±220 µV (max) over temperature - enables accurate DC-coupled amplification without frequent nulling in precision sensor front-ends. |
| Gain Bandwidth Product | 14 MHz at AV = 10 - supports stable high-speed signal conditioning in active filters and DAC buffers with minimal phase lag. |
| Supply Current per Channel | 1.5 mA (typical at 5V) - balances low-power operation with sufficient drive capability for 10 kΩ loads. |
| Input Bias Current | ±200 fA (typical at 25°C) - critical for guarding high-impedance pH, piezoelectric, or photodiode sensors without loading error. |
| Rail-to-Rail I/O | Input common-mode range extends to V− −0.2 V and V+ +0.2 V; output swings to within 40 mV of rails - maximizes usable signal swing in 3.3V or single-supply systems. |
| CMRR | 130 dB (typical) - rejects power supply and ground noise in noisy industrial environments without signal degradation. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin, industrial control, and downhole instrumentation where thermal robustness is mandatory. |
Pinout & Package
Package: 8-pin VSSOP (DGK), 3.0 mm × 3.0 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | High-impedance CMOS node accepting differential feedback; requires guarded layout to preserve fA-level bias current. |
| 2 | Non-Inverting Input (Channel A) | Matched to Pin 1 for common-mode rejection; sensitive to PCB leakage - keep clean and short. |
| 3 | Output (Channel A) | Capable of sourcing/sinking >40 mA short-circuit current; limited by thermal dissipation in VSSOP package. |
| 4 | V− (Negative Supply) | Reference for both channels; must be low-impedance; ties to system ground in single-supply configurations. |
| 5 | V+ (Positive Supply) | Accepts 2.7V–12V; decoupling capacitor (0.1 µF ceramic) required within 2 mm of Pin 5 for stability. |
| 6 | Non-Inverting Input (Channel B) | Independent high-Z input; identical specs to Pin 2 - enables matched dual-sensor conditioning. |
| 7 | Inverting Input (Channel B) | Complementary to Pin 6; maintains channel-to-channel isolation >100 dB up to 10 kHz. |
| 8 | Output (Channel B) | Functionally identical to Pin 3; allows independent gain/feedback networks per channel without crosstalk penalty. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated architecture | Stable only at AV ≥ 6 - trades unity-gain flexibility for 2.3× higher bandwidth than comparable compensated op-amps at same quiescent current. |
| Trimmed CMOS input stage | Reduces NMOS/PMOS offset mismatch - cuts CMRR glitch at rail crossings by >20 dB versus untrimmed RRIO amplifiers. |
| VIP50 process integration | Enables 2.7V–12V operation with rail-to-rail input on CMOS - eliminates need for charge-pump rails in portable medical devices. |
| Low 1/f noise corner | Sub-10 Hz corner frequency - preserves signal integrity in DC-coupled ECG and strain gauge amplifiers without high-pass filtering. |
| Thermal shutdown protection | Activates above TJ = +150°C - prevents latch-up during sustained overload in enclosed enclosures without external thermal management. |
Applications
| High-Impedance Sensor Interface | Battery-Powered Instrumentation |
|---|---|
|
Use Scenario: Amplifying output of a 100 MΩ pH electrode in handheld water quality meter operating from 3.3V Li-ion cell. IC Role / Device Role / Timing Role: Dual-channel LMP7708MME/NOPB serves as first-stage transimpedance amplifier and reference buffer, rejecting common-mode noise from shared ground. Use Value: ±200 fA input bias avoids >20 mV measurement error; rail-to-rail output delivers full 0–3.3V ADC range without level-shifting. |
Use Scenario: Signal conditioning for thermopile-based non-contact temperature sensor in wearable health monitor. IC Role / Device Role / Timing Role: Configured as precision difference amplifier to extract µV-level thermopile output against ambient reference. Use Value: 130 dB CMRR suppresses EMI from Bluetooth radio; 1.5 mA/channel supply current extends battery life beyond 12 months. |
| High-Gain Amplifiers | DAC Buffer |
|
Use Scenario: 1000× gain stage for low-level piezoelectric vibration sensor in predictive maintenance edge node. IC Role / Device Role / Timing Role: Non-inverting amplifier with AV = 100, using decompensated stability margin to achieve 5.6 V/µs slew rate. Use Value: 14 MHz GBWP sustains flat frequency response to 140 kHz; low 9 nV/√Hz noise preserves SNR in 24-bit sigma-delta acquisition. |
Use Scenario: Buffering 16-bit voltage-output DAC in programmable logic controller analog output module. IC Role / Device Role / Timing Role: Unity-gain follower driving 10 kΩ load and 100 pF cable capacitance via RISO compensation. Use Value: Output swing within 40 mV of rails ensures full-scale DAC code maps to 0–10 V output; <0.024% THD+N prevents harmonic distortion in control signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDGKT | Unity-gain stable, 5.7 MHz GBWP, 550 µV max VOS, 0.2 µV/°C TCVOS | Lower bandwidth but superior DC precision and drift; requires no minimum gain constraint. | Select when gain < 6 is needed or long-term drift dominates error budget. |
| ADA4522-2ARMZ | Zero-drift architecture, 2.5 µV max VOS, 0.005 µV/°C TCVOS, 2.7 MHz GBWP | Negligible offset drift over time/temperature; lower bandwidth limits AC performance. | Select for ultra-stable DC measurements where 14 MHz bandwidth is unnecessary. |
Compared with OPA2182IDGKT and ADA4522-2ARMZ, the LMP7708MME/NOPB delivers higher bandwidth per milliamp and lower input bias current - making it optimal for high-impedance, medium-speed sensor interfaces where decompensated gain constraints are acceptable.
Availability
LMP7708MME/NOPB is available at Aetrix Electronics and suitable for high-impedance sensor interface, battery-powered instrumentation, and DAC buffering requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LMP7708MME/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 investment in precision amplifier design and manufacturing.
The LMP™ precision amplifier family - including LMP7708MME/NOPB - was engineered for sensor signal conditioning and instrumentation applications demanding ultra-low input bias current, rail-to-rail operation, and wide supply voltage tolerance.
FAQ
What is the minimum stable gain for LMP7708MME/NOPB?
The LMP7708MME/NOPB is decompensated and guaranteed stable only at closed-loop gains of 6 or higher. Attempting unity-gain or gain-of-2 configurations may cause oscillation or excessive overshoot. For lower-gain applications, consider unity-gain-stable alternatives like OPA2182IDGKT. Always verify phase margin in simulation when operating near the stability boundary.
Does LMP7708MME/NOPB support true rail-to-rail input with 0V common-mode voltage?
Yes - the LMP7708MME/NOPB supports input common-mode voltage from V− −0.2 V to V+ +0.2 V. At V− = 0V and V+ = 3.3V, inputs function correctly down to −0.2V and up to +3.5V, enabling direct interfacing with transducers that swing slightly below ground or above supply. This is confirmed in the "Input Common-Mode Voltage Range" specification (CMVR) across all supply conditions.
What is the maximum capacitive load LMP7708MME/NOPB can drive without isolation?
Driving >100 pF directly risks instability due to phase margin reduction. TI recommends using an isolation resistor (RISO) between the output and capacitive load - typically 10 Ω to 100 Ω depending on CL - as shown in Figure 45 of the SNOSAW5B datasheet. Without RISO, reliable operation is limited to ≤50 pF for most gain configurations.
How does LMP7708MME/NOPB handle input overvoltage beyond supply rails?
The absolute maximum rating for input voltage is V+ +0.3 V and V− −0.3 V. Exceeding these violates safe operating area and may damage the CMOS input stage. External clamping diodes or series resistors are required if transient overvoltage >±300 mV differential or >±0.3 V beyond rails is possible - such as in industrial I/O modules exposed to ESD or inductive kickback.
Is LMP7708MME/NOPB pin-compatible with other dual op-amps in VSSOP-8?
No - the LMP7708MME/NOPB has a non-standard pinout (e.g., V− on Pin 4, V+ on Pin 5) differing from industry-standard dual op-amps like LMV722 or OPA2313. Direct replacement would require PCB redesign. Always consult the "Connection Diagrams" section (Figures 4–5) in SNOSAW5B before board layout.
LMP7708MME/NOPB 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:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5.9V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 37 µV
- Current - Supply:
- 1.5mA (x2 Channels)
- Current - Output / Channel:
- 86 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMP7708MME/NOPB FAQ
1.How can I place an order for LMP7708MME/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7708MME/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 LMP7708MME/NOPB reliable?
The price and inventory of LMP7708MME/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7708MME/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7708MME/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7708MME/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7708MME/NOPB?
LMP7708MME/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7708MME/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 LMP7708MME/NOPB?
For technical support, including LMP7708MME/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7708MME/NOPB requirements.
6.How does Aetrix verify that LMP7708MME/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7708MME/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 LMP7708MME/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7708MME/NOPB?
All LMP7708MME/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7708MME/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 LMP7708MME/NOPB part is unused and in its original packaging.
Return procedure for LMP7708MME/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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