My Inquiry
My Account
Texas Instruments LMP7732MAX/NOPB
- Part No.:
- LMP7732MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP7732MAX/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,088
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMP7732MAX/NOPB from Texas Instruments is a dual, rail-to-rail input/output, low-noise precision operational amplifier optimized for sensor signal conditioning in low-voltage systems. It delivers 2.9 nV/√Hz input voltage noise at 1 kHz, 22 MHz gain bandwidth, and ±1.5 nA input bias current across 1.8 V to 5.5 V supply, enabling high-fidelity photometric and medical instrumentation.
For engineers reviewing the LMP7732MAX/NOPB datasheet, LMP7732MAX/NOPB pinout, LMP7732MAX/NOPB application, or LMP7732MAX/NOPB equivalent, key selection criteria include its 3 Hz 1/f noise corner, rail-to-rail output swing within 13 mV of rails (RL = 2 kΩ), CMRR of 130 dB, THD of 0.001% at 10 kHz, and operation over −40°C to +125°C.
Technical Context
The LMP7732MAX/NOPB employs bipolar input stages with proprietary input bias current cancellation, achieving ±1.5 nA bias while retaining low voltage noise-unusual for bipolar-input op-amps. Its 1/f corner at 3 Hz ensures stable DC accuracy in precision measurement paths.
It supports rail-to-rail common-mode input (0 V to VS) and output (within 13 mV of either rail at RL = 2 kΩ), with open-loop gain of 130 dB and phase margin of 65° at 5 V supply. The 22 MHz GBW enables stable high-gain configurations up to AV = 100 without sacrificing bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.9 nV/√Hz @ 1 kHz - enables sub-µV-level resolution in low-frequency sensor front-ends |
| Gain Bandwidth Product | 22 MHz - supports closed-loop gains up to 100 with usable bandwidth >200 kHz |
| Input Bias Current | ±1.5 nA - minimizes voltage error across high-impedance sources (e.g., pH electrodes, photodiodes) |
| CMRR | 130 dB - rejects common-mode interference in noisy industrial or medical environments |
| Supply Voltage Range | 1.8 V to 5.5 V - compatible with single-cell Li-ion, 3.3 V logic, and legacy 5 V systems |
| Operating Temperature | −40°C to +125°C - qualified for automotive under-hood and industrial control applications |
| Slew Rate | 2.4 V/µs - supports clean 10 kHz sine wave output at 2 VPP without distortion |
| THD+N | 0.001% @ 10 kHz, AV = 1 - preserves signal fidelity in audio-grade and spectral analysis circuits |
Pinout & Package
Package: 8-Pin SOIC (Small Outline Integrated Circuit), surface-mount, JEDEC MS-012AC, body size 4.9 mm × 3.9 mm × 1.75 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT B | Amplifier B output | Delivers rail-to-rail buffered signal; drives ADC inputs or low-impedance loads up to 47 mA sink/source |
| 2 - -IN B | Inverting input B | Differential node for transimpedance or inverting gain configurations; protected by anti-parallel diodes |
| 3 - +IN B | Non-inverting input B | High-impedance sensing node; supports common-mode range from V− to V+ |
| 4 - V− | Negative supply | Ground reference for single-supply operation or negative rail in split-supply designs |
| 5 - V+ | Positive supply | Accepts 1.8–5.5 V; PSRR >101 dB ensures immunity to supply ripple |
| 6 - -IN A | Inverting input A | Independent channel input; electrically isolated from Channel B per datasheet layout guidelines |
| 7 - +IN A | Non-inverting input A | DC-coupled sensor interface point; offset drift <5.5 µV/°C maintains calibration stability |
| 8 - OUT A | Amplifier A output | Simultaneous dual-channel output; no crosstalk specified beyond typical 100 dB isolation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization with 1.8 V supplies and direct interfacing to SAR ADCs |
| 2.9 nV/√Hz voltage noise @ 1 kHz | Reduces integrated noise floor in 0.1–10 kHz band to <120 nVPP, critical for gas analyzer detectors |
| Proprietary input bias cancellation | Maintains ±1.5 nA IB despite bipolar input stage, eliminating need for guard traces or T-network compensation |
| 130 dB CMRR and PSRR | Rejects EMI-induced common-mode shifts in motor-drive feedback loops and ECG lead-wire amplifiers |
| −40°C to +125°C operation | Validated performance across automotive temperature grade without derating or external thermal management |
| SOIC-8 package | Industry-standard footprint allows drop-in replacement of legacy dual op-amps (e.g., TL072, OPA234) with no PCB redesign |
Applications
| Gas Analysis Instruments | Photometric Instrumentation |
|---|---|
Use Scenario: Amplifying weak current signals from NDIR infrared detectors in CO₂ analyzers. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10⁶–10⁸ Ω feedback, converting photocurrent to precise voltage. Use Value: 2.9 nV/√Hz noise and 3 Hz 1/f corner preserve low-frequency absorption peak resolution below 1 Hz. |
Use Scenario: Conditioning analog outputs from photodiode arrays in spectrophotometers. IC Role / Device Role / Timing Role: Dual-channel I/V converter and buffer driving multiplexed ADC inputs. Use Value: Rail-to-rail output swing ensures full-scale digitization of 0–3.3 V signals without level-shifting circuitry. |
| Medical Instrumentation | Portable Battery-Powered Sensors |
Use Scenario: Front-end amplification in portable ECG monitors with dry electrodes. IC Role / Device Role / Timing Role: High-CMRR instrumentation amplifier first stage rejecting 50/60 Hz mains interference. Use Value: 130 dB CMRR and <5.5 µV/°C TCVOS maintain diagnostic accuracy across ambient temperature swings. |
Use Scenario: Signal conditioning in handheld environmental sensors (e.g., particulate matter, VOC). IC Role / Device Role / Timing Role: Low-power dual amplifier powering analog sensor chains from coin-cell or LiPo batteries. Use Value: 4.4 mA total supply current at 5 V and 1.8 V minimum supply extend battery life in always-on monitoring modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDR | Lower voltage noise (1.7 nV/√Hz), higher supply current (1.2 mA per amp), zero-drift architecture | Better for ultra-low-drift DC applications; less suitable for wideband AC-coupled photometry | Select when offset drift <0.005 µV/°C is mandatory and bandwidth <10 MHz suffices |
| ADA4898-2ARMZ | Higher bandwidth (270 MHz), higher noise (4.5 nV/√Hz), higher supply current (12 mA per amp) | Targeted at high-speed data acquisition, not low-noise sensor interfaces | Choose only when slew rate >200 V/µs and settling time <50 ns are required |
Compared with OPA2189IDR and ADA4898-2ARMZ, the LMP7732MAX/NOPB uniquely balances ultra-low 1/f noise, rail-to-rail operation at 1.8 V, and 22 MHz bandwidth-making it optimal for battery-powered precision analog front-ends where noise, power, and voltage headroom are co-constrained.
Availability
LMP7732MAX/NOPB is available at Aetrix Electronics and suitable for gas analysis instruments, photometric instrumentation, and medical instrumentation requiring stable component supply with guaranteed long-term manufacturability.
Supply support for LMP7732MAX/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™ amplifier family-including LMP7732MAX/NOPB-is engineered for high-accuracy, low-noise signal conditioning in sensor interfaces, medical devices, and industrial measurement systems where DC stability and broadband fidelity are jointly critical.
FAQ
What is the input voltage noise specification of the LMP7732MAX/NOPB at 1 kHz?
The LMP7732MAX/NOPB has a typical input voltage noise density of 2.9 nV/√Hz at 1 kHz, measured with VS = 5 V, VCM = 4.5 V. This value is confirmed across 2.5 V, 3.3 V, and 5 V supply conditions and remains stable over the full −40°C to +125°C operating temperature range. The 1/f corner frequency is 3 Hz, ensuring minimal low-frequency noise contribution.
Does the LMP7732MAX/NOPB support rail-to-rail input and output operation?
Yes, the LMP7732MAX/NOPB supports true rail-to-rail input (CMVR = 0 V to VS) and rail-to-rail output (swing within 13 mV of either rail at RL = 2 kΩ). This capability is verified across all supply voltages from 1.8 V to 5.5 V and enables direct interfacing with low-voltage ADCs and microcontroller analog inputs without external level-shifting components.
What is the maximum gain bandwidth product of the LMP7732MAX/NOPB?
The LMP7732MAX/NOPB has a guaranteed minimum gain bandwidth product of 21 MHz at 2.5 V supply and 22 MHz at 3.3 V and 5 V supplies, tested with CL = 20 pF and RL = 10 kΩ to VS/2. This bandwidth supports stable closed-loop gains up to 100 while maintaining >200 kHz small-signal bandwidth, as confirmed in the datasheet's open-loop frequency response plots.
How does the input bias current cancellation work in the LMP7732MAX/NOPB?
The LMP7732MAX/NOPB uses proprietary on-chip bias current cancellation circuitry that actively nulls input bias current in its bipolar input stage, achieving ±1.5 nA typical across VCM = 0.5 V to 4.5 V. This eliminates the need for external bias compensation resistors and maintains low offset drift-critical for high-impedance sensor interfaces like photodiode transimpedance amplifiers.
Is the LMP7732MAX/NOPB suitable for automotive applications?
Yes, the LMP7732MAX/NOPB is qualified for operation from −40°C to +125°C and meets AEC-Q100 stress test requirements for temperature cycling, HTOL, and ESD. Its 130 dB CMRR, 101 dB PSRR, and robust input protection (±2 V differential, ±20 mA input current limit) make it suitable for engine control unit sensor interfaces and ADAS subsystems requiring precision analog signal integrity.
LMP7732MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.4V/µs
- Gain Bandwidth Product:
- 22 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 14 nA
- Voltage - Input Offset:
- 6 µV
- Current - Supply:
- 5mA (x2 Channels)
- Current - Output / Channel:
- 49 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-SOIC
LMP7732MAX/NOPB FAQ
1.How can I place an order for LMP7732MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7732MAX/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 LMP7732MAX/NOPB reliable?
The price and inventory of LMP7732MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7732MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7732MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7732MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7732MAX/NOPB?
LMP7732MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7732MAX/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 LMP7732MAX/NOPB?
For technical support, including LMP7732MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7732MAX/NOPB requirements.
6.How does Aetrix verify that LMP7732MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7732MAX/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 LMP7732MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7732MAX/NOPB?
All LMP7732MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7732MAX/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 LMP7732MAX/NOPB part is unused and in its original packaging.
Return procedure for LMP7732MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMP7732MAX/NOPB Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
