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Texas Instruments LMP2022MA/NOPB
- Part No.:
- LMP2022MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP2022MA/NOPB.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:239
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Product details
Overview
LMP2022MA/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 drift, 11 nV/√Hz input voltage noise density at 1 kHz, 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 LMP2022MA/NOPB datasheet, LMP2022MA/NOPB pinout, LMP2022MA/NOPB application, or LMP2022MA/NOPB equivalent, key selection criteria include ultra-low DC error budget compatibility, EMI rejection up to 82 dB at 2.4 GHz, rail-to-rail output swing within 83 mV of rails (at 5 V, RL = 10 kΩ), and dual-channel isolation with 150 dB crosstalk rejection at 1 kHz.
Technical Context
The LMP2022MA/NOPB employs proprietary continuous auto-zero correction to eliminate 1/f noise and suppress input offset drift, achieving near-zero long-term DC error accumulation. Its on-chip EMI filtering targets RF interference at 400–2400 MHz, delivering up to 82 dB EMIRR without external shielding.
This dual op-amp integrates two independent amplifiers sharing only V+ and V− supplies, with no internal connection between channels beyond power rails. Each channel features matched input bias current (±25 pA typ), 5 MHz gain-bandwidth product, and 2.6 V/µs slew rate - supporting stable closed-loop operation in precision instrumentation with gains up to 1000.
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 systems (e.g., 32,768 LSB span) |
| Offset Drift (Typ) | −0.004 µV/°C - contributes <0.5 µV total drift over −40°C to +125°C operating range |
| Input Voltage Noise | 260 nVPP (0.1–10 Hz) - enables resolution below 1 µV in low-frequency sensor interfaces |
| Open-Loop Gain | 160 dB - reduces gain error to <0.001% at 100× closed-loop gain |
| EMI Rejection Ratio | 82 dB at 2.4 GHz - rejects >99.99% of 2.4 GHz RF peak amplitude at inputs |
| Supply Range | 2.2 V to 5.5 V - supports single-cell Li-ion (3.0–4.2 V) and 5 V rail operation without level-shifting |
| Crosstalk Rejection | 150 dB at 1 kHz - prevents signal coupling between channels in dual-sensor systems |
Pinout & Package
Package: 8-pin VSSOP (DGK), body size 3.00 mm × 3.00 mm, thermal resistance θJA = 217 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A | Output, Channel A | Amplified differential output of Channel A; rail-to-rail swing with 83 mV headroom at 5 V |
| −IN A | Inverting Input, Channel A | Differential input node for Channel A; 12 pF common-mode capacitance affects high-Z sensor stability |
| +IN A | Non-Inverting Input, Channel A | Differential input node for Channel A; matched to −IN A for CMRR >139 dB |
| V− | Negative Supply | Lowest potential rail; must be decoupled with ≥100 nF ceramic capacitor near pin |
| V+ | Positive Supply | Highest potential rail; shared by both channels; requires separate 100 nF bypass |
| −IN B | Inverting Input, Channel B | Independent differential input for Channel B; electrically isolated from Channel A except via V+/V− |
| +IN B | Non-Inverting Input, Channel B | Independent differential input for Channel B; identical specs to +IN A |
| OUT B | Output, Channel B | Amplified differential output of Channel B; 150 dB crosstalk rejection isolates from OUT A |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Continuous auto-zero correction eliminates 1/f noise and holds offset drift to ±0.02 µV/°C max |
| EMI-hardened inputs | On-die RF filters provide 82 dB rejection at 2.4 GHz, reducing need for external ferrites or shields |
| Rail-to-rail output | Swings within 83 mV of V+ and 65 mV of V− at 5 V, enabling full utilization of ADC input range |
| Ultra-low input bias current | ±25 pA typical allows direct interface with high-impedance sources like piezoresistive bridges |
| Dual-channel isolation | 150 dB crosstalk rejection at 1 kHz prevents inter-channel signal leakage in multi-sensor systems |
Applications
| Thermocouple Amplifier | Bridge Sensor Interface |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from Type K thermocouples across −40°C to +125°C ambient. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with cold-junction compensation support. Use Value: ±5 µV max offset and −0.004 µV/°C drift limit temperature measurement error to <0.1°C over full range. | Use Scenario: Conditioning output of 350 Ω strain-gauge Wheatstone bridges in industrial load cells. IC Role / Device Role / Timing Role: Low-noise, high-CMRR front-end amplifier driving 16-bit SAR ADCs. Use Value: 260 nVPP 0.1–10 Hz noise and 139 dB CMRR preserve microstrain resolution under EMI-rich factory environments. |
| Battery-Powered DMM | Precision ADC Driver |
Use Scenario: Input buffer and gain stage in handheld digital multimeters powered by 2× AA alkaline cells (2.4–3.2 V). IC Role / Device Role / Timing Role: Dual-channel signal conditioner supporting simultaneous voltage/current measurements. Use Value: 2.2–5.5 V supply range and 1.1 mA per amplifier enable >200 hr runtime; 160 dB AVOL ensures <0.001% gain nonlinearity. | Use Scenario: Driving the input of 16-bit delta-sigma ADCs (e.g., ADS1256) in medical ECG front-ends. IC Role / Device Role / Timing Role: Low-noise, low-distortion unity-gain buffer with fast overload recovery (50 µs). Use Value: 11 nV/√Hz noise density and 50 µs recovery time prevent settling errors and maintain SNR >100 dB. |
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 input bias current (±0.3 pA), higher GBW (12 MHz), but higher supply current (1.3 mA/ch) and no integrated EMI filtering | Better for femtoampere photodiode sensing; less robust in cellular/Wi-Fi proximity | Select when ultra-low IB dominates over EMI immunity and power budget allows +0.2 mA/ch |
| AD8629ARZ | Higher offset drift (±0.1 µV/°C max), lower PSRR (114 dB), same 5 MHz GBW and 2.5 V–6 V supply range | Suitable for moderate-accuracy industrial sensors where cost is critical and EMI exposure is low | Select when total system drift budget permits >5× higher drift and external EMI mitigation is acceptable |
Compared with OPA2189IDR and AD8629ARZ, the LMP2022MA/NOPB uniquely combines sub-µV offset stability, 82 dB 2.4 GHz EMIRR, and 1.1 mA/ch quiescent current - making it optimal for compact, battery-operated, high-EMI instrumentation where DC accuracy and RF resilience are co-critical.
Availability
LMP2022MA/NOPB is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, battery-powered test equipment, and bridge-based industrial sensors requiring stable component supply across extended temperature ranges (−40°C to +125°C).
Supply support for LMP2022MA/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 precision amplifier innovation.
The LMP™ precision amplifier family - including LMP2022MA/NOPB - was engineered specifically for high-accuracy, low-drift, EMI-resilient signal conditioning in sensor interfaces, medical devices, and industrial measurement systems.
FAQ
What is the maximum input offset voltage specification for LMP2022MA/NOPB?
The maximum input offset voltage for LMP2022MA/NOPB is ±5 µV across the full operating temperature range of −40°C to +125°C, as specified in the Electrical Characteristics table for 5 V supply conditions. This value is guaranteed by production testing and defines the worst-case DC error contribution before trimming or calibration. The LMP2022MA/NOPB achieves this performance using continuous auto-zero architecture, and typical offset is −0.4 µV at 25°C.
Does LMP2022MA/NOPB support rail-to-rail output operation?
Yes, LMP2022MA/NOPB provides rail-to-rail output swing: at 5 V supply and RL = 10 kΩ, output swings within 83 mV of V+ and 65 mV of V−. This capability allows full utilization of ADC input ranges without level-shifting circuitry. Performance is characterized across temperature and load - e.g., swing degrades to 170 mV from rail at −40°C/125°C. The LMP2022MA/NOPB does not support rail-to-rail input; common-mode range extends to −0.2 V below V− and 4.2 V above V− at 5 V supply.
What is the EMI rejection capability of LMP2022MA/NOPB at 2.4 GHz?
LMP2022MA/NOPB delivers 82 dB electro-magnetic interference rejection ratio (EMIRR) at 2.4 GHz with 100 mVPK RF input, as measured per JEDEC-standard methodology. This on-die EMI hardening eliminates need for external RC filters or shielded enclosures in Wi-Fi/Bluetooth-adjacent designs. EMIRR improves at lower frequencies (72 dB at 1.8 GHz, 64 dB at 900 MHz) and is validated across −40°C to +125°C. The LMP2022MA/NOPB achieves this via integrated input and supply-line filtering, distinct from post-layout layout mitigation.
How many operational amplifiers are integrated in LMP2022MA/NOPB?
LMP2022MA/NOPB integrates two fully independent precision operational amplifiers (Channel A and Channel B) in a single 8-pin VSSOP package. Each channel has dedicated +IN, −IN, and OUT pins, sharing only the V+ and V− supply terminals. Crosstalk between channels is suppressed to 150 dB at 1 kHz, confirming true functional isolation. This dual configuration enables simultaneous signal conditioning of two sensors - such as dual-axis load cells or paired thermocouples - without interaction.
What is the supply current consumption of LMP2022MA/NOPB per amplifier?
LMP2022MA/NOPB consumes 1.1 mA per amplifier at 25°C and 5 V supply, with a maximum of 1.57 mA per amplifier across −40°C to +125°C. Total device current is therefore 2.2 mA typical, 3.14 mA max. This low quiescent current enables use in always-on battery-powered instruments with multi-year runtime. Supply current varies linearly with supply voltage (1.25 mA/ch at 5.5 V, 0.95 mA/ch at 2.5 V) and is unaffected by output loading below 50 mA.
LMP2022MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
LMP2022MA/NOPB FAQ
1.How can I place an order for LMP2022MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2022MA/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 LMP2022MA/NOPB reliable?
The price and inventory of LMP2022MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2022MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2022MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2022MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2022MA/NOPB?
LMP2022MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2022MA/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 LMP2022MA/NOPB?
For technical support, including LMP2022MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2022MA/NOPB requirements.
6.How does Aetrix verify that LMP2022MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2022MA/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 LMP2022MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2022MA/NOPB?
All LMP2022MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2022MA/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 LMP2022MA/NOPB part is unused and in its original packaging.
Return procedure for LMP2022MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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