My Inquiry
My Account
Texas Instruments LMP2232AMAX/NOPB
- Part No.:
- LMP2232AMAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP2232AMAX/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,739
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMP2232AMAX/NOPB from Texas Instruments is a dual micropower precision operational amplifier with CMOS input, rail-to-rail output, and 1.6V to 5.5V supply operation. It delivers ±150 µV max input offset voltage, ±0.5 µV/°C max drift, 20 fA input bias current, 130 kHz gain-bandwidth product, and operates across –40°C to 125°C - enabling high-accuracy sensor signal conditioning in ultra-low-power battery systems.
For engineers reviewing the LMP2232AMAX/NOPB datasheet, LMP2232AMAX/NOPB pinout, LMP2232AMAX/NOPB application, or LMP2232AMAX/NOPB equivalent, this page provides verified specifications, package mapping, functional alternatives, and design-critical performance boundaries for medical instrumentation, strain gauge interfaces, and precision single-supply amplification.
Technical Context
The LMP2232AMAX/NOPB integrates two independent precision op-amp channels in a single die, each featuring CMOS input stage for femtoampere-level bias current and rail-to-rail output swing within 15 mV of either supply rail. Its architecture supports stable operation down to 1.6V supply while maintaining ≥103 dB large-signal voltage gain at 2.5V.
It achieves 97 dB common-mode rejection and 120 dB power supply rejection across its full operating voltage range (1.6V–5.5V), with input common-mode range extending 200 mV below the negative rail - enabling true ground-sensing capability in single-supply configurations without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 5.5V - enables direct integration into Li-ion, coin-cell, and low-voltage industrial power rails without regulation. |
| Input Offset Voltage (max) | ±150 µV - ensures ≤0.015% error in 1V full-scale measurement without trimming. |
| Offset Drift (max) | ±0.5 µV/°C - contributes <0.6 µV total drift over 0–125°C ambient, critical for uncalibrated field deployments. |
| Input Bias Current (typ) | 20 fA - allows use with >1 GΩ source impedances (e.g., pH electrodes, piezoresistive sensors) without significant voltage error. |
| Gain-Bandwidth Product | 130 kHz - supports stable closed-loop gain ≥10 up to ~13 kHz, sufficient for DC–10 kHz sensor signal bandwidths. |
| Output Swing (from rail) | 15 mV - delivers >99% of full supply dynamic range at load ≥10 kΩ, maximizing ADC utilization in 12-bit+ systems. |
| Quiescent Current (per channel) | 16 µA at 1.8V - enables dual-channel precision amplification with <32 µA total supply draw, ideal for multi-year battery life. |
Pinout & Package
Package: 8-pin SOIC (D0008A), 3.9 mm × 4.9 mm body, 1.27 mm pitch, surface-mount.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | High-impedance CMOS node accepting differential input signals; requires guarding for <1 pF parasitic capacitance in high-Z applications. |
| 2 | Non-Inverting Input (Channel A) | Reference point for Channel A; common-mode range extends 200 mV below V–, enabling ground-referenced sensor inputs. |
| 3 | Output (Channel A) | Rail-to-rail output capable of sourcing/sinking ≥11 mA at 3.3V; swings within 15 mV of V+ or V– under 10 kΩ load. |
| 4 | V– (Ground / Negative Supply) | Power return path; also serves as reference for common-mode input range extension below ground in single-supply use. |
| 5 | Non-Inverting Input (Channel B) | Independent high-Z input for second channel; electrically isolated from Channel A except via shared supply pins. |
| 6 | Inverting Input (Channel B) | Matches Pin 1 characteristics; supports matched dual-channel instrumentation topologies like difference amplifiers. |
| 7 | Output (Channel B) | Identical output drive capability to Pin 3; supports independent loading and feedback networks per channel. |
| 8 | V+ (Positive Supply) | Primary power input; PSRR ≥120 dB ensures minimal supply ripple coupling into output, critical for mixed-signal PCBs. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 16 µA per channel at 1.8V enables dual-op-amp signal chains on coin-cell batteries for >5 years (assuming 10% duty cycle). |
| Ultra-low input bias current | 20 fA typical allows direct connection to high-impedance sensors (e.g., glass pH electrodes, photodiode transimpedance nodes) without guard rings or T-network compensation. |
| Precision DC performance | ±150 µV VOS and ±0.5 µV/°C TCVOS eliminate need for factory calibration in Class I medical devices operating across –40°C to 85°C. |
| Rail-to-rail output | Swings to within 15 mV of V+ or V– at 10 kΩ load, preserving >98.5% of available voltage headroom for 12-bit ADCs with 2.5V reference. |
| Extended temperature range | Specified from –40°C to +125°C junction temperature supports deployment in automotive engine compartments and industrial motor control enclosures. |
Applications
| Precision Instrumentation Amplifiers | Battery-Powered Medical Instrumentation |
|---|---|
Use Scenario: High-gain, low-drift front-end for portable ECG or blood glucose meters requiring sub-µV input resolution. IC Role / Device Role / Timing Role: Dual-channel configured as precision difference amplifier and reference buffer, rejecting common-mode noise from dry electrodes. Use Value: 20 fA input bias prevents electrode polarization errors; ±150 µV VOS avoids baseline drift during 30-second acquisition windows. |
Use Scenario: Analog front-end in wearable pulse oximeters powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Dual op-amp implements transimpedance conversion for photodiode signals and DC-coupled LED driver biasing. Use Value: 16 µA per channel extends battery life beyond 12 months; rail-to-rail output drives 1.8V SAR ADC directly without level shifters. |
| High-Impedance Sensors | Strain Gauge Bridge Amplifier |
Use Scenario: Signal conditioning for MEMS-based barometric pressure sensors with >100 MΩ internal impedance. IC Role / Device Role / Timing Role: Non-inverting amplifier with guarded input traces, leveraging CMOS input to avoid leakage-induced offset. Use Value: 20 fA bias current limits input error to <2 µV at 100 MΩ source impedance, preserving 16-bit measurement fidelity. |
Use Scenario: Wheatstone bridge readout in structural health monitoring nodes deployed on bridges or wind turbine blades. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier with matched dual channels for bridge excitation and differential output buffering. Use Value: ±0.5 µV/°C drift minimizes thermal zero-shift over –40°C to 85°C ambient; 120 dB PSRR rejects switching regulator noise from adjacent DC/DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMP2232MM/NOPB | VSSOP-8 package (2.3 mm × 2.0 mm), identical electrical specs, higher θJA (147.4 °C/W) vs. SOIC (111.2 °C/W). | Better suited for space-constrained PCBs where thermal margin permits higher junction temperature rise. | Select when board area is critical and ambient temperature remains ≤70°C; verify thermal derating per JEDEC JESD51-2. |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C max drift, 17 µA supply current, but 360 kHz GBW and higher cost. | Required only when sub-µV/°C drift is mandated (e.g., laboratory-grade calibrators); not needed for medical or industrial sensor front-ends. | Choose only if drift specification exceeds ±0.5 µV/°C requirement; otherwise LMP2232AMAX/NOPB offers optimal cost/performance balance. |
Compared with LMP2232MM/NOPB, the LMP2232AMAX/NOPB provides lower thermal resistance for higher ambient reliability; compared with OPA2333AIDR, it trades ultra-low drift for significantly lower quiescent current and cost - making it the preferred choice for battery-powered precision analog systems where 0.5 µV/°C drift is acceptable.
Availability
LMP2232AMAX/NOPB is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, battery-powered medical instrumentation, and high-impedance sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMP2232AMAX/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 signal chain components.
The LMP2232AMAX/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for ultra-low-power, high-accuracy sensor interface applications in portable and harsh-environment systems.
FAQ
What is the maximum operating temperature for the LMP2232AMAX/NOPB?
The LMP2232AMAX/NOPB is fully specified from –40°C to +125°C junction temperature. Its SOIC package has a thermal resistance (θJA) of 111.2 °C/W, allowing reliable operation at 125°C ambient when power dissipation remains below 2.25 mW per channel - verified in TI's SNOSB02C datasheet Section 6.5.
Does the LMP2232AMAX/NOPB support rail-to-rail input?
No, the LMP2232AMAX/NOPB does not support rail-to-rail input. Its common-mode input voltage range extends 200 mV below the negative supply (V–) but only to V+ – 1.2 V at room temperature - confirmed in the "Common Mode Voltage Range" parameter table (Section 7.5, SNOSB02C). However, its rail-to-rail output is fully supported.
Is the LMP2232AMAX/NOPB pin-compatible with other LMP223x variants?
Yes, the LMP2232AMAX/NOPB shares identical pinout with all LMP2232 variants (e.g., LMP2232MM/NOPB, LMP2232AIDR) and is functionally compatible with the LMP2231 (single) and LMP2234 (quad) in SOIC-8 footprint - per TI's package drawings DGK0008A and D0008A in the SNOSB02C datasheet Figure 2.
What is the typical supply current of the LMP2232AMAX/NOPB at 1.8V?
The LMP2232AMAX/NOPB draws 16 µA per channel at 1.8V supply, totaling 32 µA for both amplifiers - specified in the "1.8V DC Electrical Characteristics" table (Section 7.10, SNOSB02C). This value is measured at TA = 25°C, VCM = VO = V+/2, and RL > 1 MΩ.
Can the LMP2232AMAX/NOPB drive capacitive loads up to 100 pF stably?
Yes, the LMP2232AMAX/NOPB maintains ≥60° phase margin with up to 100 pF capacitive load at unity gain (AV = +1), as shown in Figure 37 of the SNOSB02C datasheet. For loads >50 pF, TI recommends adding a 10 Ω series resistor between output and capacitor to ensure stability in production designs.
LMP2232AMAX/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:
- Differential, Rail-to-Rail
- Slew Rate:
- 0.048V/µs
- Gain Bandwidth Product:
- 130 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.02 pA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 19µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 1.6 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
LMP2232AMAX/NOPB FAQ
1.How can I place an order for LMP2232AMAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2232AMAX/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 LMP2232AMAX/NOPB reliable?
The price and inventory of LMP2232AMAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2232AMAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2232AMAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2232AMAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2232AMAX/NOPB?
LMP2232AMAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2232AMAX/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 LMP2232AMAX/NOPB?
For technical support, including LMP2232AMAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2232AMAX/NOPB requirements.
6.How does Aetrix verify that LMP2232AMAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2232AMAX/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 LMP2232AMAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2232AMAX/NOPB?
All LMP2232AMAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2232AMAX/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 LMP2232AMAX/NOPB part is unused and in its original packaging.
Return procedure for LMP2232AMAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMP2232AMAX/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…
