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Texas Instruments LMP7711MKX
- Part No.:
- LMP7711MKX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LMP7711MKX.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-THIN
- Quantity:
- Payment:
- Shipping:
Inventory:2,672
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Product details
Overview
LMP7711MKX from Texas Instruments is a single-channel, precision CMOS-input operational amplifier optimized for low-noise, low-offset, rail-to-rail output signal conditioning in portable and sensor interface applications. It delivers ±150 μV max input offset voltage, 5.8 nV/√Hz input voltage noise at 1 kHz, 17 MHz gain bandwidth product, 1.15 mA supply current at 5 V, and operates from 1.8 V to 5.5 V supply rails.
For engineers reviewing the LMP7711MKX datasheet, LMP7711MKX pinout, LMP7711MKX application, or LMP7711MKX equivalent, key selection criteria include input bias current (100 fA), rail-to-rail output swing (within 25 mV of rails), enable pin functionality (140 nA shutdown current), temperature range (−40°C to 125°C), and SOT-23-6 package compatibility with space-constrained PCB layouts.
Technical Context
The LMP7711MKX employs a proprietary CMOS input stage enabling ultra-low input bias current (≤100 fA) and low input voltage noise (5.8 nV/√Hz), critical for high-impedance sensor front-ends. Its VIP50 process ensures stable performance across −40°C to 125°C and supply voltages from 1.8 V to 5.5 V.
It integrates an active enable pin (VEN) that reduces supply current to 140 nA in shutdown mode while maintaining fast turn-on (114 ns) and turn-off (800 ns) timing. The amplifier supports rail-to-rail output swing with ≥46 mA sourcing capability at 5 V and maintains >88 dB open-loop gain (RL = 2 kΩ) for precision closed-loop accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 17 MHz - enables stable unity-gain buffering and accurate amplification up to ~10 MHz closed-loop bandwidth. |
| Input Offset Voltage (max) | ±150 μV - ensures ≤0.03% error in 5 V full-scale systems without trimming. |
| Input Voltage Noise Density | 5.8 nV/√Hz @ 1 kHz - preserves SNR in photodiode, strain gauge, and thermopile signal chains. |
| Supply Current (active) | 1.15 mA @ 5 V - supports battery-powered instrumentation with multi-day runtime. |
| Rail-to-Rail Output Swing | Within 25 mV of either rail @ RL = 2 kΩ - maximizes dynamic range in 3.3 V or lower single-supply systems. |
| Enable Pin Shutdown Current | 140 nA - reduces system standby power by >99.9% versus active mode. |
| Operating Temperature Range | −40°C to 125°C - qualified for automotive under-hood and industrial control environments. |
| Input Bias Current | 100 fA - minimizes voltage error across high-value feedback networks (>10 MΩ). |
Pinout & Package
The LMP7711MKX is housed in a 6-pin SOT-23 (DDC) package, footprint-compatible with industry-standard SOT-23 layouts and reflow-solderable per JEDEC J-STD-020.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable control input | High-active logic input; ≥4.6 V enables operation, ≤0.4 V places amplifier in 140 nA shutdown. |
| 2 (−IN) | Inverting input | High-impedance CMOS node; accepts signals within −0.3 V to 4 V common-mode range at 5 V supply. |
| 3 (+IN) | Non-inverting input | High-impedance CMOS node; matched to −IN for low offset and drift. |
| 4 (V−) | Negative supply rail | Ground reference for single-supply operation; supports rail-to-rail input down to −0.3 V. |
| 5 (V+) | Positive supply rail | Accepts 1.8 V–5.5 V; internal regulation ensures stable biasing across voltage range. |
| 6 (OUT) | Amplifier output | Rail-to-rail capable; drives ≥46 mA sourcing / ≥10.5 mA sinking into 2 kΩ load at 5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 100 fA enables use with >1 GΩ source impedances without significant DC error. |
| Low input voltage noise | 5.8 nV/√Hz at 1 kHz allows clean amplification of microvolt-level sensor outputs. |
| Integrated enable function | Reduces quiescent current from 1.15 mA to 140 nA, supporting duty-cycled sensor readout. |
| Rail-to-rail output swing | Delivers full 0–5 V output range on 5 V supply, maximizing ADC utilization in data acquisition. |
| Wide supply voltage range | 1.8 V–5.5 V operation supports direct interfacing with Li-ion, coin-cell, and 3.3 V logic systems. |
| High open-loop gain | ≥88 dB ensures <0.01% gain error in precision gain stages with 100× closed-loop gain. |
Applications
| Active Filters and Buffers | Sensor Interface Applications |
|---|---|
Use Scenario: High-order anti-aliasing filter in 16-bit SAR ADC front-end with 100 kSPS sampling. IC Role / Device Role / Timing Role: Unity-gain buffer isolating RC filter from ADC input capacitance while preserving phase linearity. Use Value: 17 MHz GBW and 5.8 nV/√Hz noise ensure <0.001% THD+N and minimal passband droop up to 100 kHz. | Use Scenario: Amplifying output of a 100 kΩ RTD bridge in industrial temperature monitoring. IC Role / Device Role / Timing Role: Precision instrumentation amplifier input stage with matched CMOS inputs minimizing thermal EMF errors. Use Value: ±150 μV max VOS and −1.75 μV/°C TCVOS limit temperature-induced offset drift to <0.1 °C error over −40°C to 85°C. |
| Transimpedance Amplifiers | Portable Medical Instrumentation |
Use Scenario: Photodiode current-to-voltage conversion in pulse oximeter analog front-end. IC Role / Device Role / Timing Role: Low-noise, low-bias transimpedance amplifier with 10 MΩ feedback resistor. Use Value: 100 fA input bias avoids saturation from dark current; 5.8 nV/√Hz noise maintains >80 dB SNR for sub-nA photocurrent detection. | Use Scenario: ECG electrode signal conditioning in handheld diagnostic device powered by 3.7 V Li-ion battery. IC Role / Device Role / Timing Role: First-stage gain and filtering amplifier with enable-controlled power gating between measurements. Use Value: 1.15 mA active current + 140 nA shutdown extends battery life; rail-to-rail output interfaces directly with 3.3 V ADC. |
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 | Zero-drift architecture; 0.1 μV/°C max TCVOS vs. LMP7711MKX's ±4 μV/°C; higher 17 μV max VOS; 350 kHz GBW. | Better long-term DC stability in DC-coupled sensor systems; insufficient bandwidth for >100 kHz active filters. | Select OPA333AIDBVR when ultra-low drift dominates over speed and noise. |
| ADA4522-1ARMZ | Zero-drift, 2.5 nV/√Hz noise, 3 MHz GBW, 1.2 mA supply current; no enable pin. | Superior noise and drift for precision weigh scales; lacks power-gating for battery operation. | Select ADA4522-1ARMZ when lowest possible noise and offset are required and continuous operation is acceptable. |
Compared with OPA333AIDBVR and ADA4522-1ARMZ, the LMP7711MKX uniquely balances 17 MHz bandwidth, 5.8 nV/√Hz noise, 100 fA bias, and integrated enable-making it optimal for portable, wideband, low-power precision signal chains where zero-drift is not mandatory.
Availability
LMP7711MKX is available at Aetrix Electronics and suitable for active filters, sensor interfaces, transimpedance amplifiers, and portable medical instrumentation requiring stable component supply across industrial and automotive temperature ranges.
Supply support for LMP7711MKX 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.
The LMP™ precision amplifier family-including the LMP7711MKX-is engineered for high-fidelity signal conditioning in instrumentation, sensor, and portable applications demanding low noise, low offset, and rail-to-rail performance.
FAQ
What is the maximum supply voltage rating for the LMP7711MKX?
The absolute maximum supply voltage (V+ − V−) for the LMP7711MKX is 6.0 V. Operation beyond this risks permanent damage. The recommended operating range is 1.8 V to 5.5 V, with full specification compliance across −40°C to 125°C at 2.0 V–5.5 V and 0°C–125°C at 1.8 V–5.5 V. Always observe derating guidelines per TI's thermal resistance (θJA = 170°C/W for SOT-23).
Does the LMP7711MKX support true rail-to-rail input common-mode range?
The LMP7711MKX supports rail-to-rail *output* swing but not full rail-to-rail *input*. Its input common-mode voltage range extends from −0.3 V below V− to 4.0 V above V− at 5 V supply (CMRR ≥80 dB), enabling single-supply operation with inputs near ground-but not to the positive rail. For true rail-to-rail input, consider alternatives like the OPA377 series.
How does the enable pin (Pin 1) behave during power-up?
The LMP7711MKX enable pin (VEN) is active-high with hysteresis. When VEN rises above 4.6 V (min), the amplifier powers up fully within 114 ns. If VEN remains below 0.4 V during power-up, the device stays in 140 nA shutdown mode. No external pull-up is required, but tying VEN to V+ ensures immediate activation after supply stabilization.
Can the LMP7711MKX drive a 600 Ω load effectively?
Yes-the LMP7711MKX sources up to 46 mA and sinks up to 10.5 mA at 5 V supply, enabling direct 600 Ω drive with ≤25 mV output swing loss. At 1.8 V, it still delivers ≥36 mA sourcing. However, THD+N rises to 0.004% at 0.9 VPP into 600 Ω; for lowest distortion, use ≥10 kΩ loads or add an external buffer stage.
Is the LMP7711MKX pin-compatible with other SOT-23 op-amps like the TLV27x series?
No-the LMP7711MKX uses a non-standard pinout: Pin 1 = EN, Pin 2 = −IN, Pin 3 = +IN, Pin 4 = V−, Pin 5 = V+, Pin 6 = OUT. Standard SOT-23 op-amps (e.g., TLV272) place V+ on Pin 8 (in SO-8) or follow different 5/6-pin mappings. Direct replacement requires PCB redesign; verify pin mapping against TI's DDC package drawing before layout.
LMP7711MKX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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:
- 1.15mA
- 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:
- SOT-23-THIN
LMP7711MKX FAQ
1.How can I place an order for LMP7711MKX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7711MKX 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 LMP7711MKX reliable?
The price and inventory of LMP7711MKX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7711MKX is usually 5 days.
3.What payment methods are accepted for LMP7711MKX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7711MKX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7711MKX?
LMP7711MKX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7711MKX 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 LMP7711MKX?
For technical support, including LMP7711MKX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7711MKX requirements.
6.How does Aetrix verify that LMP7711MKX is sourced from the original manufacturer or authorized distributors?
All LMP7711MKX 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 LMP7711MKX meets industry standards.
7.What is the process for return or replacement of LMP7711MKX?
All LMP7711MKX units undergo pre-shipment inspection (PSI). If there is an issue with LMP7711MKX, 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 LMP7711MKX part is unused and in its original packaging.
Return procedure for LMP7711MKX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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