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Texas Instruments LMP2232BMAX/NOPB
- Part No.:
- LMP2232BMAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP2232BMAX/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,448
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Product details
Overview
LMP2232BMAX/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 TCVOS, 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 LMP2232BMAX/NOPB datasheet, LMP2232BMAX/NOPB pinout, LMP2232BMAX/NOPB application, or LMP2232BMAX/NOPB equivalent, key selection criteria include micropower consumption at sub-2V supply, guaranteed low-drift performance over temperature, rail-to-rail output swing within 15 mV of rails, and compatibility with high-impedance transducers such as strain gauges and thermocouples.
Technical Context
The LMP2232BMAX/NOPB employs a CMOS input stage delivering 20 fA typical input bias current and supports common-mode input down to 200 mV below the negative rail - critical for ground-sensing single-supply configurations. Its precision architecture maintains ±150 µV max VOS and ±0.5 µV/°C max TCVOS (B-grade), ensuring long-term stability in instrumentation front-ends.
It achieves 120 dB open-loop gain and 120 dB PSRR/97 dB CMRR, enabling accurate amplification of low-level signals in noisy environments. The 58 V/ms slew rate and 130 kHz GBW support moderate-speed precision applications without compromising DC accuracy or power efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 5.5V - enables direct operation from single-cell Li-ion, alkaline, or energy-harvesting sources without regulation. |
| Max Input Offset Voltage | ±150 µV - ensures ≤0.015% error in 1V full-scale measurements without trimming. |
| Max Offset Drift | ±0.5 µV/°C (B-grade) - limits drift-induced error to <0.5 µV over 10°C ambient change. |
| Input Bias Current | 20 fA - preserves signal integrity when interfacing >1 GΩ sensors like pH electrodes or piezoresistive elements. |
| Gain-Bandwidth Product | 130 kHz - supports stable closed-loop gains up to ~100× at DC–1 kHz while retaining phase margin >60°. |
| Rail-to-Rail Output Swing | Within 15 mV of either rail at 10 kΩ load - maximizes dynamic range in low-voltage systems (e.g., 1.8V supply). |
| Operating Temperature | –40°C to 125°C - qualified for automotive cabin, industrial control, and medical wearable environments. |
Pinout & Package
Package: 8-pin SOIC (D0008A), body size 3.91 mm × 4.90 mm, standard JEDEC MS-012AC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | High-impedance CMOS node accepting differential signal reference for first op-amp. |
| 2 | Non-Inverting Input (Channel A) | High-Z input for sensing bridge midpoints or reference voltages in instrumentation topologies. |
| 3 | Output (Channel A) | Rail-to-rail output capable of sourcing/sinking ≥27 mA (at 5V), driving 10 kΩ loads to within 15 mV of rails. |
| 4 | Negative Supply (V−) | Ground or negative rail connection; common-mode input extends 200 mV below this pin. |
| 5 | Non-Inverting Input (Channel B) | Independent high-Z input for second sensor channel or reference buffer function. |
| 6 | Inverting Input (Channel B) | Dedicated feedback path input for second amplifier; electrically isolated from Channel A. |
| 7 | Output (Channel B) | Second rail-to-rail output, fully decoupled from Channel A - enables dual-path signal conditioning. |
| 8 | Positive Supply (V+) | Primary power input; quiescent current per channel is 16 µA at 1.8V, scaling linearly to 28 µA at 5V. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 16 µA/channel at 1.8V supply - extends coin-cell battery life to multi-year duration in always-on monitoring nodes. |
| Ultra-Low Input Bias Current | 20 fA - eliminates leakage-induced errors in high-impedance sensor interfaces (e.g., glass pH electrodes). |
| Guaranteed Low-Drift Performance | ±0.5 µV/°C max TCVOS (B-grade) - reduces calibration frequency in field-deployed medical or test equipment. |
| Rail-to-Rail Output | Swings to within 15 mV of V+ and V− - recovers >98% of available voltage headroom at 1.8V supply. |
| Extended Common-Mode Range | Inputs operate 200 mV below V− - enables true ground-referenced sensing in single-supply systems. |
| High PSRR & CMRR | 120 dB PSRR / 97 dB CMRR - rejects supply ripple and common-mode noise in battery-powered ECG or strain gauge bridges. |
Applications
| Precision Instrumentation Amplifiers | Battery-Powered Medical Instrumentation |
|---|---|
Use Scenario: Amplifying µV-level differential signals from Wheatstone bridge pressure sensors in portable diagnostic devices. IC Role / Device Role / Timing Role: Dual-channel precision op-amp configured as first-stage instrumentation amplifier with matched gain-setting resistors. Use Value: ±150 µV VOS and ±0.5 µV/°C TCVOS ensure measurement repeatability across operating temperature without recalibration. |
Use Scenario: Front-end signal conditioning for wearable ECG monitors powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Dual amplifier implementing lead-I/lead-II differential amplification and right-leg drive buffer. Use Value: 16 µA/channel supply current at 1.8V enables >3-year battery life; rail-to-rail output maximizes ADC utilization. |
| High-Impedance Sensors | Strain Gauge Bridge Amplifier |
Use Scenario: Interfacing glass pH electrodes (≥1 GΩ impedance) in handheld water quality testers. IC Role / Device Role / Timing Role: Non-inverting amplifier with guard ring layout, leveraging 20 fA input bias current to minimize electrode polarization error. Use Value: 20 fA input bias current prevents >1 mV offset drift due to electrode leakage, preserving pH accuracy to ±0.02 units. |
Use Scenario: Signal amplification in quarter-bridge load cell circuits used in industrial weighing terminals. IC Role / Device Role / Timing Role: Dual op-amp implementing bridge excitation buffer and differential output stage with fixed-gain configuration. Use Value: 120 dB CMRR rejects common-mode noise from shared power rails; 130 kHz GBW supports 100 Hz mechanical resonance filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Lower VOS (±2 µV typ), higher supply current (17 µA vs. 16 µA at 1.8V), same 1.8V min supply. | Preferred where ultra-low offset dominates over micropower; less suitable for >10-year battery life targets. | Select OPA2333AIDR when system-level offset budget demands <10 µV total error; retain LMP2232BMAX/NOPB for longest battery runtime. |
| AD8603ARZ-REEL7 | Higher VOS (±100 µV max), higher IB (1 pA), wider supply range (1.8V–5.5V), same rail-to-rail output. | Acceptable for cost-sensitive industrial sensors where 10× higher input bias is tolerable. | Choose AD8603ARZ-REEL7 only if legacy design reuse or distributor stock availability outweighs LMP2232BMAX/NOPB's 50× lower IB and tighter VOS spec. |
Compared with OPA2333AIDR and AD8603ARZ-REEL7, the LMP2232BMAX/NOPB uniquely balances sub-20 fA input bias, ±150 µV VOS, and 16 µA supply current at 1.8V - making it optimal for battery-critical, high-impedance, and wide-temperature applications where competing parts trade off one parameter for another.
Availability
LMP2232BMAX/NOPB is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, battery-powered medical instrumentation, and high-impedance sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMP2232BMAX/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 heritage in precision op-amp innovation.
The LMP2232BMAX/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for ultra-low-power, high-accuracy signal conditioning in portable and harsh-environment systems - emphasizing micropower operation without sacrificing DC precision or AC performance.
FAQ
What is the maximum input offset voltage specification for LMP2232BMAX/NOPB?
The LMP2232BMAX/NOPB has a maximum input offset voltage of ±150 µV across the full operating temperature range (–40°C to 125°C), as specified in the datasheet's Electrical Characteristics tables under "5V DC Electrical Characteristics" and confirmed for 1.8V, 2.5V, and 3.3V supplies. This value applies to the B-grade version and is tested and guaranteed - not typical or average.
Does LMP2232BMAX/NOPB support rail-to-rail input operation?
No, the LMP2232BMAX/NOPB does not support rail-to-rail input. Its common-mode input voltage range extends 200 mV below the negative supply (V−) but only up to V+ − 1.2 V at room temperature - verified in the "Common Mode Voltage Range" (CMVR) specifications across all supply voltages. However, its output is rail-to-rail, swinging within 15 mV of both V+ and V−.
What package type is used for LMP2232BMAX/NOPB?
The LMP2232BMAX/NOPB is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with package code D0008A, measuring 3.91 mm × 4.90 mm. This is a standard JEDEC MS-012AC outline, RoHS-compliant, and pin-compatible with other members of the LMP223x family in SOIC packaging.
How does the supply current of LMP2232BMAX/NOPB vary with supply voltage?
The LMP2232BMAX/NOPB exhibits nearly constant supply current across its 1.6V–5.5V range: 16 µA/channel at 1.8V, 17 µA at 2.5V, 19 µA at 3.3V, and 28 µA at 5V (per Electrical Characteristics tables). This monotonic increase reflects internal biasing requirements - critical for predicting battery drain in multi-voltage designs.
Is LMP2232BMAX/NOPB suitable for thermocouple amplifier applications?
Yes, the LMP2232BMAX/NOPB is explicitly listed in the "Applications" section of its datasheet for thermocouple amplifiers. Its combination of low input bias current (20 fA), low offset drift (±0.5 µV/°C), and ability to operate down to 1.6V makes it ideal for cold-junction compensation and low-level µV thermocouple signal amplification in portable or remote measurement systems.
LMP2232BMAX/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
LMP2232BMAX/NOPB FAQ
1.How can I place an order for LMP2232BMAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2232BMAX/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 LMP2232BMAX/NOPB reliable?
The price and inventory of LMP2232BMAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2232BMAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2232BMAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2232BMAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2232BMAX/NOPB?
LMP2232BMAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2232BMAX/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 LMP2232BMAX/NOPB?
For technical support, including LMP2232BMAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2232BMAX/NOPB requirements.
6.How does Aetrix verify that LMP2232BMAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2232BMAX/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 LMP2232BMAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2232BMAX/NOPB?
All LMP2232BMAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2232BMAX/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 LMP2232BMAX/NOPB part is unused and in its original packaging.
Return procedure for LMP2232BMAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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