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Texas Instruments LMP2022MMX/NOPB
- Part No.:
- LMP2022MMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP2022MMX/NOPB.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2CIRC 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,460
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Product details
Overview
LMP2022MMX/NOPB from Texas Instruments is a dual zero-drift, low-noise, EMI-hardened operational amplifier designed for precision sensor signal conditioning in high-accuracy analog front-ends. It delivers ±5 µV max input offset voltage, −0.004 µV/°C typical offset drift, 11 nV/√Hz input voltage noise at 1 kHz (AV = 1000), 160 dB open-loop gain, and operates from 2.2 V to 5.5 V supply - enabling use in battery-powered weigh scales and bridge-based pressure transducers.
For engineers reviewing the LMP2022MMX/NOPB datasheet, LMP2022MMX/NOPB pinout, LMP2022MMX/NOPB application, or LMP2022MMX/NOPB equivalent, key selection criteria include ultra-low DC error budget compatibility, EMI rejection at 900–2400 MHz, rail-to-rail output swing within 83 mV of rails (RL = 10 kΩ, VS = 5 V), and dual-channel isolation with 150 dB cross-talk rejection at 1 kHz.
Technical Context
The LMP2022MMX/NOPB employs proprietary continuous auto-zero correction to eliminate 1/f noise and suppress input offset drift, achieving near-zero long-term DC error without external calibration. Its internal EMI filtering targets RF interference at cellular/Wi-Fi frequencies (400–2400 MHz), delivering up to 82 dB EMIRR at 2.4 GHz under 5 V supply.
This dual op-amp integrates matched input stages with differential topology, supporting independent high-gain instrumentation paths. Its 5 MHz gain-bandwidth product and 2.6 V/µs slew rate enable stable closed-loop operation up to unity gain while maintaining <260 nVPP integrated 0.1–10 Hz noise - critical for sub-µV-level thermocouple and strain gauge amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (Max) | ±5 µV - ensures ≤0.001% gain error in 5 V full-scale 16-bit ADC interfaces |
| Offset Drift (Typ) | −0.004 µV/°C - enables <1 µV total drift over −40°C to +125°C industrial range |
| Input Voltage Noise (0.1–10 Hz) | 260 nVPP - supports 24-bit resolution in low-frequency bridge applications |
| EMI Rejection Ratio (2.4 GHz) | 82 dB - rejects >99.99% of 2.4 GHz RF peak amplitude at inputs |
| Open-Loop Gain | 160 dB - reduces gain error to <0.0001% in 100× closed-loop configurations |
| Supply Range | 2.2 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V) and 5 V logic systems |
| Cross-Talk Rejection | 150 dB at 1 kHz - prevents channel A signal coupling into channel B in dual-sensor systems |
Pinout & Package
Package: 8-pin VSSOP (DGK), body size 3.00 mm × 3.00 mm, 0.65 mm pitch, exposed pad optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A | Output, Channel A | Amplified differential signal from Channel A; rail-to-rail capable, drives ≥10 kΩ loads |
| –IN A | Inverting Input, Channel A | High-impedance node (±25 pA bias current) for feedback network connection |
| +IN A | Non-Inverting Input, Channel A | High-Z sensor interface point; matched to –IN A for CMRR optimization |
| V– | Negative Supply | Lowest potential rail; must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| V+ | Positive Supply | Highest potential rail; includes on-chip EMI filter; requires local 0.1 µF + 2.2 µF bypass |
| –IN B | Inverting Input, Channel B | Independent high-Z input for second sensor path; electrically isolated from Channel A |
| +IN B | Non-Inverting Input, Channel B | Matched pair to –IN B; enables simultaneous dual transducer conditioning |
| OUT B | Output, Channel B | Fully independent output stage; no shared internal nodes with OUT A |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Continuous auto-zero correction eliminates 1/f noise and maintains <1 µV total offset drift over temperature and time |
| EMI-hardened inputs & supply | On-die RC filters provide >58 dB rejection at 400 MHz and >82 dB at 2.4 GHz, reducing external shielding needs |
| Rail-to-rail output | Swings within 83 mV of V+ and 65 mV of V– (RL = 10 kΩ, VS = 5 V), maximizing dynamic range in low-voltage systems |
| Dual-channel isolation | 150 dB cross-talk rejection at 1 kHz ensures independent signal paths for multi-sensor measurement systems |
| Ultra-low power precision | 1.1 mA per amplifier at 5 V enables high-accuracy sensing in portable devices with <2.2 mW/channel dissipation |
Applications
| Thermocouple Amplifier | Strain Gauge Bridge Interface |
|---|---|
Use Scenario: Cold-junction compensated K-type thermocouple measurement in industrial ovens (−40°C to +200°C). IC Role / Device Role / Timing Role: Dual-channel LMP2022MMX/NOPB configures one amp as cold-junction sensor buffer and the other as thermocouple differential amplifier with 1000× gain. Use Value: 0.004 µV/°C drift contributes <0.02°C error over full range; 260 nVPP 0.1–10 Hz noise enables <0.1°C resolution without oversampling. |
Use Scenario: Full-bridge load cell readout in medical infusion pumps requiring 24-bit accuracy and EMI immunity near wireless modules. IC Role / Device Role / Timing Role: Each LMP2022MMX/NOPB channel buffers half-bridge outputs before 24-bit delta-sigma ADC. Use Value: 150 dB channel isolation prevents pump motor switching noise from corrupting weight readings; 82 dB 2.4 GHz EMIRR rejects Wi-Fi co-location interference. |
| Precision Weigh Scale Front-End | Battery-Powered Data Logger |
Use Scenario: Portable analytical balance with 1 mg resolution, operating from coin-cell battery for >1 year. IC Role / Device Role / Timing Role: LMP2022MMX/NOPB provides dual low-noise gain stages for microvolt-level bridge signals, followed by programmable gain amplifier. Use Value: 1.1 mA supply current per channel extends battery life; 260 nVPP low-frequency noise avoids need for digital post-filtering, reducing MCU processing load. |
Use Scenario: Remote environmental sensor node logging temperature, humidity, and barometric pressure using I²C sensors and BLE radio. IC Role / Device Role / Timing Role: LMP2022MMX/NOPB conditions analog outputs of analog-output sensors (e.g., analog temp ICs) before SAR ADC sampling. Use Value: 2.2–5.5 V supply range matches buck-boost regulator output; EMI hardening prevents BLE transmit bursts from inducing offset shifts during acquisition. |
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 |
|---|---|---|---|
| AD8629ARZ | Higher 0.1–10 Hz noise (450 nVPP), no specified EMIRR; 1.5 mA supply current | Lacks integrated EMI filtering - requires external ferrite beads and RC networks for RF immunity | Prefer when cost sensitivity outweighs EMI robustness; verify layout-level RF suppression |
| OPA2189IDGKT | Lower offset drift (±0.001 µV/°C), higher GBW (12 MHz), but larger 8-pin SOIC package (4.9 × 3.9 mm) | SOIC footprint incompatible with LMP2022MMX/NOPB's 3.0 × 3.0 mm VSSOP; requires PCB redesign | Choose for ultra-stable DC performance in space-tolerant designs where board area is not constrained |
Compared with AD8629ARZ and OPA2189IDGKT, the LMP2022MMX/NOPB uniquely balances ultra-low drift, industry-leading EMI rejection, and compact VSSOP packaging - making it optimal for space-constrained, RF-noisy, battery-operated precision measurement systems where layout-level filtering must be minimized.
Availability
LMP2022MMX/NOPB is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, battery-powered sensor nodes, and bridge-based transducer interfaces requiring stable component supply across automotive, industrial, and medical production programs.
Supply support for LMP2022MMX/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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The LMP2022MMX/NOPB belongs to TI's LMP™ precision op-amp family, engineered specifically for high-accuracy sensor signal conditioning where ultra-low DC error, low-frequency noise, and EMI resilience are mandatory - targeting industrial process control, test equipment, and medical diagnostics.
FAQ
What is the maximum input offset voltage specification for LMP2022MMX/NOPB?
The LMP2022MMX/NOPB has a maximum input offset voltage of ±5 µV across the full operating temperature range (−40°C to +125°C), as guaranteed by production testing per the SNOSAY9G datasheet. This specification ensures predictable DC error in high-gain configurations and is critical for applications like 24-bit weigh scale front-ends where offset directly limits resolution.
Does LMP2022MMX/NOPB support rail-to-rail output swing?
Yes, the LMP2022MMX/NOPB provides rail-to-rail output capability: at VS = 5 V and RL = 10 kΩ, it swings within 83 mV of V+ and 65 mV of V–. This design value maximizes usable dynamic range in low-voltage systems such as single-supply 3.3 V data loggers, eliminating the need for level-shifting circuitry in many precision analog interfaces.
What EMI frequencies does LMP2022MMX/NOPB reject, and how is this measured?
The LMP2022MMX/NOPB specifies EMI rejection ratio (EMIRR) from 400 MHz to 2400 MHz, with values of 58 dB, 64 dB, 72 dB, and 82 dB respectively at 5 V supply. EMIRR is defined as 20·log(VRF-PEAK/ΔVOS) - quantifying how much RF-induced offset shift is suppressed. This on-die filtering eliminates external components in Wi-Fi- and Bluetooth-enabled sensor systems.
Can LMP2022MMX/NOPB operate from a 2.5 V supply?
Yes, the LMP2022MMX/NOPB is fully specified down to 2.2 V supply voltage. At 2.5 V, it maintains ±5 µV max offset, 1.1 mA supply current per amplifier, and 260 nVPP 0.1–10 Hz noise - enabling direct integration with low-power microcontrollers and energy-harvesting power supplies in portable instrumentation where battery voltage sags below 3 V.
How does the auto-zero architecture of LMP2022MMX/NOPB affect its noise profile?
The LMP2022MMX/NOPB's continuous auto-zero architecture eliminates 1/f (flicker) noise entirely, resulting in flat voltage noise density of 11 nV/√Hz from 0.1 kHz upward and only 260 nVPP integrated noise from 0.1–10 Hz. This enables high-resolution DC-coupled measurements without correlated double sampling or digital post-filtering - a key advantage over chopper-stabilized amplifiers with residual switching artifacts.
LMP2022MMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 2.6V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 pA
- Voltage - Input Offset:
- 0.4 µV
- Current - Supply:
- 1.1mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMP2022MMX/NOPB FAQ
1.How can I place an order for LMP2022MMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2022MMX/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 LMP2022MMX/NOPB reliable?
The price and inventory of LMP2022MMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2022MMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2022MMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2022MMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2022MMX/NOPB?
LMP2022MMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2022MMX/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 LMP2022MMX/NOPB?
For technical support, including LMP2022MMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2022MMX/NOPB requirements.
6.How does Aetrix verify that LMP2022MMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2022MMX/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 LMP2022MMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2022MMX/NOPB?
All LMP2022MMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2022MMX/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 LMP2022MMX/NOPB part is unused and in its original packaging.
Return procedure for LMP2022MMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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