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Texas Instruments LMP7701MF
- Part No.:
- LMP7701MF
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMP7701MF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,818
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Product details
Overview
LMP7701MF from Texas Instruments is a single-channel, precision CMOS-input operational amplifier with rail-to-rail input and output, ±200 µV max input offset voltage, 2.5 MHz unity-gain bandwidth, and 715 µA supply current at 5 V - designed for high-impedance sensor interface and battery-powered instrumentation where low bias current (±200 fA) and wide 2.7 V to 12 V supply range are critical.
For engineers reviewing the LMP7701MF datasheet, LMP7701MF pinout, LMP7701MF application, or LMP7701MF equivalent, key selection considerations include its 5-pin SOT-23 package, rail-to-rail operation down to 2.7 V, sub-1 pA input bias current, 130 dB CMRR, and guaranteed performance across −40°C to +125°C industrial temperature range.
Technical Context
The LMP7701MF uses VIP50 CMOS process technology to achieve both ultra-low input bias current (±200 fA) and extended common-mode range (−0.2 V to VS + 0.2 V), enabling direct interfacing with high-impedance sources like piezoresistive sensors and pH electrodes. Its rail-to-rail input stage employs trimmed complementary NMOS/PMOS pairs to minimize CMRR glitches near supply rails.
Output swing is specified within 40 mV of either rail under 2 kΩ load, preserving dynamic range in low-voltage systems; open-loop gain exceeds 100 dB across 2.7–12 V supply, and input voltage noise is 9 nV/√Hz at 1 kHz - supporting precision DC-coupled amplification and active filtering without significant noise degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±200 µV max - ensures ≤0.2 mV error in 1 V full-scale measurement at room temperature |
| Input Bias Current | ±200 fA max - enables stable DC coupling to >10 GΩ source impedances without significant voltage error |
| Supply Voltage Range | 2.7 V to 12 V - supports single-supply battery operation (e.g., 3 V coin cell) and dual-supply ±5 V systems |
| Unity-Gain Bandwidth | 2.5 MHz - allows stable closed-loop gain ≥10 up to ~250 kHz with adequate phase margin |
| CMRR | 130 dB min - rejects >3.16 MV/V common-mode interference, critical for differential sensor front-ends |
| Operating Temperature | −40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Supply Current | 715 µA typical at 5 V - enables >1-year operation on 200 mAh coin cell in low-duty-cycle sensor nodes |
Pinout & Package
Package: 5-pin SOT-23 (DBV), body size 1.60 mm × 2.90 mm, moisture sensitivity level 1, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified signal output; drives loads ≥2 kΩ with <40 mV headroom to rails |
| 2 | V− | Negative supply terminal; accepts 0 V (single-supply) or −5 V (dual-supply) |
| 3 | IN+ | Noninverting input; high-impedance CMOS node, compatible with high-Z sensors |
| 4 | IN− | Inverting input; matched to IN+ for precision differential gain configurations |
| 5 | V+ | Positive supply terminal; operates from 2.7 V to 12 V; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of supply voltage range - e.g., 0–3 V output swing with 3 V supply |
| Ultra-low input bias current (±200 fA) | Prevents signal attenuation and drift when amplifying from high-impedance sources (≥10 GΩ) |
| Low input offset voltage (±200 µV max) | Reduces initial calibration burden in precision measurement systems (e.g., strain gauge bridges) |
| Wide supply range (2.7 V to 12 V) | Eliminates need for separate voltage regulators in mixed-supply systems or battery-powered designs |
| 130 dB CMRR and PSRR | Maintains accuracy in noisy industrial environments with shared power/ground returns |
Applications
| High-Impedance Sensor Interface | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying output of pH electrode or piezoresistive pressure sensor with >1 GΩ source impedance. IC Role / Device Role / Timing Role: Precision DC-coupled buffer and gain stage, rejecting common-mode noise while preserving microvolt-level signals. Use Value: ±200 fA bias current prevents >0.2 mV error at 1 GΩ source; rail-to-rail I/O maximizes ADC dynamic range from 3 V supply. |
Use Scenario: Signal conditioning in portable gas detector with 3 V coin-cell power and 16-bit SAR ADC. IC Role / Device Role / Timing Role: Low-power transducer amplifier driving ADC reference buffer, operating continuously at 715 µA. Use Value: 715 µA supply current extends battery life beyond 1 year; −40°C to +125°C rating supports field deployment in variable climates. |
| DAC Output Buffer | Active Filter Stage |
Use Scenario: Driving capacitive loads (e.g., 100 pF) from 16-bit DAC in programmable voltage source. IC Role / Device Role / Timing Role: Unity-gain stable buffer isolating DAC core from load variations and maintaining monotonicity. Use Value: 2.5 MHz GBW ensures <0.1% settling error for 100 kHz step inputs; rail-to-rail output delivers full 0–VREF range. |
Use Scenario: Second-order Sallen-Key low-pass filter (10 kHz cutoff) in ECG front-end with anti-aliasing requirement. IC Role / Device Role / Timing Role: Active gain stage with low noise (9 nV/√Hz) and high open-loop gain (>100 dB) for precise pole placement. Use Value: 130 dB open-loop gain minimizes filter transfer function deviation; low THD+N (0.02%) preserves signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Lower offset (±10 µV typ), higher supply current (17 µA), same 5-pin SOT-23 package | Better DC accuracy but 24× higher quiescent current - unsuitable for multi-year battery operation | Select OPA333AIDBVR only when ultra-low offset dominates over power; LMP7701MF preferred for <1 mA budget |
| ADA4522-1ARMZ | Zero-drift architecture, ±0.3 µV offset, 1.2 mA supply current, 8-pin MSOP package | Superior long-term stability and drift cancellation, but incompatible pinout and higher power dissipation | Choose ADA4522-1ARMZ for metrology-grade stability; LMP7701MF offers optimal balance of precision, size, and power |
Compared with OPA333AIDBVR and ADA4522-1ARMZ, the LMP7701MF uniquely combines 5-pin SOT-23 footprint, sub-picoampere bias current, and sub-milliwatt consumption - making it the only option among the three viable for space-constrained, multi-year battery-powered sensor nodes requiring high-Z interface capability.
Availability
LMP7701MF 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-lifecycle programs.
Supply support for LMP7701MF 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 LMP7701MF belongs to TI's LMP™ precision amplifier family, engineered specifically for high-accuracy, low-power signal conditioning in sensor interfaces, portable instrumentation, and industrial measurement systems.
FAQ
What is the maximum input common-mode voltage range for the LMP7701MF?
The LMP7701MF supports a common-mode input voltage range from (V− − 0.2 V) to (V+ + 0.2 V). At 5 V single supply (V− = 0 V, V+ = 5 V), this translates to −0.2 V to +5.2 V - enabling operation with inputs slightly below ground or above the positive rail, critical for robust sensor interfacing. This specification is guaranteed across the full −40°C to +125°C temperature range and applies to the LMP7701MF in its 5-pin SOT-23 package.
Does the LMP7701MF require external compensation for unity-gain stability?
No, the LMP7701MF is internally compensated and unity-gain stable across its full operating conditions - including 2.7 V to 12 V supply and −40°C to +125°C temperature range. Its 2.5 MHz gain-bandwidth product and phase margin exceed 60° at AV = 1, eliminating need for external compensation components. This simplifies design in LMP7701MF-based buffers and active filters without sacrificing stability.
Can the LMP7701MF drive capacitive loads directly?
The LMP7701MF can reliably drive capacitive loads up to 100 pF in unity-gain configuration without oscillation, per TI's characterization data. For larger loads (>100 pF), a series isolation resistor (e.g., 10–50 Ω) between the LMP7701MF output and the capacitor is recommended to maintain phase margin. This behavior is consistent across all LMP7701MF units in the 5-pin SOT-23 package and does not require additional feedback compensation.
What is the output voltage swing specification for the LMP7701MF at 3 V supply?
At 3 V single supply (V+ = 3 V, V− = 0 V) and 2 kΩ load, the LMP7701MF delivers an output swing of 40 mV to 2.96 V - i.e., within 40 mV of both rails. This rail-to-rail performance ensures >97% of the supply range is usable for signal encoding, maximizing dynamic range into downstream ADCs. The specification is tested and guaranteed for the LMP7701MF across −40°C to +125°C ambient temperatures.
Is the LMP7701MF pin-compatible with other members of the LMP770x family?
No, the LMP7701MF (5-pin SOT-23) is not pin-compatible with the LMP7702 or LMP7704, which use 8-pin SOIC/VSSOP and 14-pin SOIC/TSSOP packages respectively. Pin count, layout, and terminal assignments differ fundamentally - e.g., LMP7701MF has dedicated IN+, IN−, OUT, V+, V− pins, while dual/quad variants integrate multiple amplifiers with shared supplies. Board redesign is required when substituting across LMP770x variants, including the LMP7701MF.
LMP7701MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.1V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 37 µV
- Current - Supply:
- 790µA
- 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:
- SOT-23-5
LMP7701MF FAQ
1.How can I place an order for LMP7701MF through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7701MF 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 LMP7701MF reliable?
The price and inventory of LMP7701MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7701MF is usually 5 days.
3.What payment methods are accepted for LMP7701MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7701MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7701MF?
LMP7701MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7701MF 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 LMP7701MF?
For technical support, including LMP7701MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7701MF requirements.
6.How does Aetrix verify that LMP7701MF is sourced from the original manufacturer or authorized distributors?
All LMP7701MF 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 LMP7701MF meets industry standards.
7.What is the process for return or replacement of LMP7701MF?
All LMP7701MF units undergo pre-shipment inspection (PSI). If there is an issue with LMP7701MF, 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 LMP7701MF part is unused and in its original packaging.
Return procedure for LMP7701MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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