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Texas Instruments LMP7715MFE/NOPB
- Part No.:
- LMP7715MFE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMP7715MFE/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:817
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Product details
Overview
LMP7715MFE/NOPB from Texas Instruments is a single-channel, rail-to-rail output, precision CMOS-input operational amplifier optimized for low-noise, low-offset sensor interface and transimpedance applications. It delivers ±150 μV max input offset voltage, 100 fA typical input bias current, 5.8 nV/√Hz input voltage noise at 1 kHz, 17 MHz gain bandwidth product, and operates from 1.8 V to 5.5 V supply - enabling high-fidelity signal conditioning in portable instrumentation and medical front-ends.
For engineers reviewing the LMP7715MFE/NOPB datasheet, LMP7715MFE/NOPB pinout, LMP7715MFE/NOPB application, or LMP7715MFE/NOPB equivalent, key selection criteria include its ultra-low input bias current for photodiode interfaces, rail-to-rail output swing within 25 mV of either rail, 17 MHz bandwidth at 1.15 mA supply current, and SOT-23 package compatibility with space-constrained PCB layouts.
Technical Context
The LMP7715MFE/NOPB employs TI's VIP50 CMOS process to achieve sub-100 fA input bias current and 5.8 nV/√Hz voltage noise - critical for high-impedance sensor buffering and transimpedance amplification. Its unity-gain-stable architecture supports closed-loop gains ≥1 with minimal phase margin degradation up to 120 pF capacitive load.
It features rail-to-rail output swing (25 mV from rails at RL = 2 kΩ), extended input common-mode range (−0.3 V to VS − 0.3 V), and operates across −40°C to +125°C. The device uses an innovative feedback topology enabling 47 mA sourcing capability at 1.8 V - exceeding typical rail-to-rail op-amps in drive strength at low voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 17 MHz - enables stable amplification at high closed-loop gains up to ~100× with <1% gain error at 100 kHz. |
| Input Offset Voltage (max) | ±150 μV - ensures ≤0.03% DC error in 5 V full-scale precision measurement paths. |
| Input Bias Current (typ) | 100 fA - minimizes voltage error across >100 MΩ sensor impedances (e.g., pH electrodes, photodiodes). |
| Input Voltage Noise Density | 5.8 nV/√Hz at 1 kHz - preserves SNR in low-level analog front-ends such as ECG amplifiers and strain gauge bridges. |
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interfacing with Li-ion battery-powered systems and 3.3 V/5 V logic domains. |
| Rail-to-Rail Output Swing | Within 25 mV of either rail (RL = 2 kΩ) - maximizes dynamic range in single-supply 1.8–5.5 V systems. |
| Supply Current | 1.15 mA - achieves 17 MHz bandwidth at <1.2 mA, enabling high-speed precision without thermal compromise. |
Pinout & Package
Package: 5-pin SOT-23 (MFE suffix per TI packaging nomenclature). Compact footprint (2.92 mm × 1.6 mm) suitable for dense PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−IN) | High-impedance CMOS node; connects to feedback network or sensor return path in transimpedance configurations. |
| 2 | Non-Inverting Input (+IN) | High-impedance CMOS node; referenced to ground or bias voltage for single-supply operation. |
| 3 | Output (OUT) | Rail-to-rail capable output driving up to 47 mA sourcing / 23 mA sinking; requires isolation resistor for >120 pF loads. |
| 4 | Ground (GND) | Power and signal reference plane; must be low-impedance connection to minimize noise coupling. |
| 5 | Supply Voltage (V+) | Positive supply input (1.8–5.5 V); decoupling capacitor (0.1 μF ceramic) required within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 100 fA typical - enables accurate amplification of nanoamp-level photodiode or ion-selective electrode currents. |
| Low input voltage noise | 5.8 nV/√Hz at 1 kHz - maintains signal integrity in high-gain, wideband sensor interfaces (e.g., piezoelectric accelerometers). |
| Rail-to-rail output stage | Swings within 25 mV of V+ and GND at 2 kΩ load - delivers full-scale output headroom in 1.8 V systems. |
| Wide supply range | 1.8 V to 5.5 V operation - eliminates level-shifting in mixed-voltage designs and extends battery life in portable devices. |
| High gain-bandwidth efficiency | 17 MHz GBW at only 1.15 mA - provides >15× bandwidth-per-mA advantage over legacy precision op-amps. |
Applications
| Photodiode Transimpedance Amplifier | Portable Medical Sensor Front-End |
|---|---|
Use Scenario: Converting weak photocurrents (100 pA–10 nA) from optical sensors into measurable voltage signals in barcode scanners and pulse oximeters. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with ultra-low input bias current and low noise to preserve SNR at high transimpedance gains. Use Value: Enables >120 dB dynamic range with 10 MΩ–1 GΩ feedback resistors while maintaining stability via internal compensation and external CF tuning. |
Use Scenario: Amplifying microvolt-level bio-signals (ECG, EEG) in battery-powered wearable monitors with strict power budgets. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input/output amplifier in first-stage instrumentation configuration with DC-coupled gain. Use Value: Delivers 5.8 nV/√Hz noise floor and ±150 μV offset at 1.15 mA - achieving clinical-grade accuracy without active cooling or chopper stabilization. |
| High-Impedance Bridge Interface | Low-Voltage Active Filter Stage |
Use Scenario: Reading unamplified outputs from 350 Ω–10 kΩ strain gauge or RTD bridges in handheld test equipment. IC Role / Device Role / Timing Role: Precision buffer and gain stage with input common-mode range extending 300 mV below ground for true single-supply bridge excitation. Use Value: Supports direct 1.8 V bridge excitation with <0.1% nonlinearity error due to low TCVOS (±4 μV/°C) and rail-to-rail output swing. |
Use Scenario: Implementing 2nd-order Sallen-Key or multiple-feedback filters in audio and industrial signal conditioning with 3.3 V supplies. IC Role / Device Role / Timing Role: Unity-gain-stable, high-slew-rate (≥8.3 V/μs) op-amp providing precise frequency shaping without peaking or oscillation. Use Value: Stable operation with 120 pF capacitive load and 17 MHz GBW allows sharp cutoff at >100 kHz with minimal component count and no external compensation. |
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 | Chopper-stabilized (0.1 μV offset), lower noise (5.5 nV/√Hz), but 350 kHz GBW and 17 μA supply current. | Better DC accuracy for ultra-low-frequency (<10 Hz) sensors; unsuitable for >100 kHz signal paths. | Select OPA333AIDBVR when sub-μV offset dominates over bandwidth; avoid for transimpedance or active filter use above 50 kHz. |
| ADA4522-1ARMZ | Zero-drift architecture (0.025 μV offset), 3 MHz GBW, 1.2 mA supply current, higher voltage noise (7.2 nV/√Hz). | Superior long-term drift stability for calibration-critical lab instruments; limited bandwidth restricts high-speed sensor sampling. | Select ADA4522-1ARMZ for metrology-grade DC stability; choose LMP7715MFE/NOPB when 17 MHz bandwidth and 100 fA bias are mandatory. |
Compared with OPA333AIDBVR and ADA4522-1ARMZ, the LMP7715MFE/NOPB uniquely balances 17 MHz bandwidth, 100 fA bias, and 5.8 nV/√Hz noise - making it the only option among the three viable for wideband, high-impedance photodiode or piezoelectric sensor interfaces requiring both speed and fidelity.
Availability
LMP7715MFE/NOPB is available at Aetrix Electronics and suitable for portable medical devices, optical sensing modules, and industrial data acquisition systems requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for LMP7715MFE/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 expertise in precision amplifiers and signal chain solutions.
The LMP7715MFE/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for high-fidelity, low-power signal conditioning in instrumentation, sensor interfaces, and portable measurement systems.
FAQ
What is the maximum capacitive load the LMP7715MFE/NOPB can drive without oscillation?
The LMP7715MFE/NOPB can directly drive up to 120 pF capacitive load in unity-gain follower configuration without oscillation or excessive peaking. For loads exceeding 120 pF, an isolation resistor (RISO) must be placed in series with the output to restore phase margin. Typical RISO values range from 10 Ω to 100 Ω depending on CL and required bandwidth. This behavior is verified in TI's SNOSAV0E datasheet Figure 32 and Figure 33.
Does the LMP7715MFE/NOPB support true single-supply operation with inputs near ground?
Yes. The LMP7715MFE/NOPB features an input common-mode voltage range extending to −0.3 V (300 mV below ground) and rail-to-rail output swing within 25 mV of either supply rail. This allows direct interfacing with grounded sensors (e.g., thermocouples, bridge circuits) using only a single positive supply (1.8–5.5 V), eliminating need for negative rails or level-shifting circuitry.
What is the typical input bias current of the LMP7715MFE/NOPB at 125°C?
At 125°C, the LMP7715MFE/NOPB exhibits a maximum input bias current of 100 pA (per Electrical Characteristics Table, TA = −40°C to +125°C, VCM = 2.0 V). This remains exceptionally low compared to bipolar-input op-amps and ensures minimal error in high-impedance applications even at elevated temperatures.
Can the LMP7715MFE/NOPB be used in transimpedance amplifier designs with >1 GΩ feedback resistors?
Yes - its 100 fA typical input bias current and 5.8 nV/√Hz voltage noise make the LMP7715MFE/NOPB well-suited for transimpedance amplifiers with feedback resistors up to 1 GΩ. However, stability requires careful selection of feedback capacitance (CF) per TI's Equation 3 in the datasheet, and layout must minimize stray capacitance at the inverting input to prevent oscillation.
Is the LMP7715MFE/NOPB RoHS-compliant and lead-free?
Yes. The "/NOPB" suffix explicitly denotes lead-free (Pb-free) and RoHS-compliant packaging. The LMP7715MFE/NOPB meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is qualified for reflow soldering per IPC/JEDEC J-STD-020 standards, including peak temperature of 260°C for 10 seconds.
LMP7715MFE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®, PowerWise®
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-23-5
LMP7715MFE/NOPB FAQ
1.How can I place an order for LMP7715MFE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7715MFE/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 LMP7715MFE/NOPB reliable?
The price and inventory of LMP7715MFE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7715MFE/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7715MFE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7715MFE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7715MFE/NOPB?
LMP7715MFE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7715MFE/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 LMP7715MFE/NOPB?
For technical support, including LMP7715MFE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7715MFE/NOPB requirements.
6.How does Aetrix verify that LMP7715MFE/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7715MFE/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 LMP7715MFE/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7715MFE/NOPB?
All LMP7715MFE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7715MFE/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 LMP7715MFE/NOPB part is unused and in its original packaging.
Return procedure for LMP7715MFE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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