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Texas Instruments LMP8358MA/NOPB
- Part No.:
- LMP8358MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP8358MA/NOPB.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:253
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Product details
Overview
LMP8358MA/NOPB from Texas Instruments is a zero-drift, programmable-gain instrumentation amplifier with integrated diagnostics and SPI/parallel configuration. It delivers 10–1000× gain, <10 µV max input offset voltage, 110 dB min CMRR, and operates from 2.7V to 5.5V supply across −40°C to 125°C - enabling precision bridge sensor amplification in harsh industrial environments.
For engineers reviewing the LMP8358MA/NOPB datasheet, LMP8358MA/NOPB pinout, LMP8358MA/NOPB application, or LMP8358MA/NOPB equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and two confirmed alternative parts for design flexibility and supply continuity.
Technical Context
The LMP8358MA/NOPB implements auto-zeroing and chopper-stabilized techniques to eliminate input offset drift and 1/f noise over temperature and time. Its ground-sensing CMOS input stage supports common-mode voltages from 100 mV below V− to 1.4 V below V+, enabling direct interfacing with grounded sensors and low-side current shunts.
It integrates fault detection circuitry (open/shorted input, deteriorating connections) via configurable test current (10 nA–100 µA), and offers five COMP modes to trade bandwidth (0.8–240 MHz GBW) against slew rate (0.16–11 V/µs) and settling time (4 µs at 0.01%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V - supports single-supply operation down to 2.7V, compatible with 3.3V and 5V systems without level-shifting. |
| Max Input Offset Voltage | 10 µV - enables sub-100 µV total system offset in precision bridge sensing with minimal calibration. |
| Gain Accuracy | ±0.15% max gain error - ensures high-fidelity signal scaling for medical instrumentation and portable test equipment. |
| CMRR | 110 dB minimum - rejects common-mode interference in noisy industrial motor control or power supply monitoring. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial PLC, and downhole sensor applications. |
| EMIRR at 1.8 GHz | 92 dB - suppresses cellular and RF interference in connected medical devices and IoT edge nodes. |
| Input Bias Current | ≤1.2 nA - preserves accuracy when amplifying high-impedance thermopile or piezoelectric sensor outputs. |
Pinout & Package
Package: 14-pin SOIC (N) - RoHS-compliant, surface-mount, industry-standard footprint with 1.27 mm pitch and thermal resistance θJA = 145°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Positive Differential Input | High-impedance CMOS node accepting sensor signals up to 100 mV differential; referenced to V−. |
| −IN | Negative Differential Input | Complements +IN; enables true differential measurement of bridge outputs or shunt voltages. |
| REFS | Reference Sense | Monitors external reference voltage at load point to compensate for PCB trace IR drop in precision REF routing. |
| REFF | Reference Force | Drives external reference voltage source to maintain stable VREF despite load variations. |
| FB | Feedback Terminal | Connects to internal output amplifier feedback path; used only in external gain resistor configurations. |
| OUT | Analog Output | Rail-to-rail output capable of sourcing/sinking ≥15 mA; swings within 7–62 mV of rails depending on load. |
| V+ | Positive Supply | Accepts 2.7–5.5V; powers all analog and digital blocks including SPI interface and fault detection logic. |
| V− | Negative Supply | Ground or negative rail; defines lower bound of input common-mode range (down to V− − 0.1 V). |
| SCK/G2 | SPI Clock / Parallel Gain MSB | In serial mode: clocks data; in parallel mode: sets most-significant bit of 3-bit gain code (G[2:0]). |
| SDI/G1 | SPI Data In / Parallel Gain Bit | In serial mode: accepts register writes; in parallel mode: sets middle bit of G[2:0] gain selection. |
| SDO/G0 | SPI Data Out / Parallel Gain LSB | In serial mode: returns status and diagnostic data; in parallel mode: sets least-significant bit of G[2:0]. |
| CSB/SHDN | Chip Select / Shutdown Control | Active-low SPI enable; driven high to enter ultra-low-power shutdown (≤1 µA IQ). |
| VHSER/VLPAR | Serial High / Parallel Low | Configures interface mode: high = SPI, low = parallel; also serves as logic-level reference for serial inputs. |
| VLSER/VHPAR | Serial Low / Parallel High | Complements VHSER/VLPAR; defines logic threshold for serial interface or enables parallel gain selection. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates input offset drift ≤50 nV/°C and 1/f noise - critical for DC-coupled thermopile and strain gauge measurements. |
| Programmable gain (10–1000×) | Configurable via SPI or 3-pin parallel interface - enables dynamic range optimization without hardware changes. |
| Integrated fault detection | Detects open/shorted inputs and degraded sensor connections using user-selectable test currents (10 nA–100 µA). |
| Rail-to-rail output | Delivers full dynamic range into loads ≥2 kΩ - maximizes ADC utilization in 12–16-bit data acquisition systems. |
| EMI robustness (92 dB @ 1.8 GHz) | Rejects cellular and ISM-band interference without external filtering - reduces BOM cost in portable medical devices. |
Applications
| Bridge Sensor Amplifier | Thermopile Amplifier |
|---|---|
|
Use Scenario: Amplifying mV-level differential output from Wheatstone bridge pressure or load cells in factory automation. IC Role / Device Role / Timing Role: Precision instrumentation amplifier with programmable gain and zero-drift correction to preserve microvolt-level resolution. Use Value: Enables ±0.05% full-scale accuracy over temperature without recalibration, reducing field maintenance cycles. |
Use Scenario: Conditioning low-amplitude, high-impedance thermopile outputs in non-contact infrared temperature sensors. IC Role / Device Role / Timing Role: Low-input-bias-current (≤1.2 nA), low-noise (25 nV/√Hz) amplifier with rail-to-rail output drive. Use Value: Maintains signal integrity from thermopiles with >100 MΩ source impedance while delivering clean 0–3.3V output to ADC. |
| Precision Low-side Current Sensing | Medical Instrumentation |
|
Use Scenario: Measuring motor phase current in industrial drives by amplifying shunt voltage referenced to ground. IC Role / Device Role / Timing Role: Ground-sensing input stage supporting common-mode range down to V− − 0.1 V. Use Value: Eliminates need for isolated amplifiers or level-shifters, simplifying PCB layout and lowering system cost. |
Use Scenario: Signal conditioning in portable ECG or patient monitors requiring long-term DC stability and low EMI susceptibility. IC Role / Device Role / Timing Role: Zero-drift, high-CMRR (110 dB), and 92 dB EMI rejection amplifier for biopotential front-end stages. Use Value: Reduces motion artifact and RF interference in battery-powered devices, extending clinical-grade performance per charge cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA333AIDR | Fixed-gain options only (1–1000×); no SPI interface; 25 µV max VOS; 85 dB min CMRR. | Lacks programmability and diagnostics; suitable for static-gain, cost-sensitive designs without fault reporting. | Select when gain is fixed and diagnostics are unnecessary; requires external multiplexer for multi-range systems. |
| AD8420ARMZ | Pin-compatible 14-lead SOIC; 10–1000× gain via resistors; 25 µV max VOS; no integrated fault detection. | Requires external components for gain programming and fault monitoring; lacks SPI configurability. | Choose for legacy AD8420 drop-in replacement where diagnostics are handled externally or omitted. |
Compared with INA333AIDR and AD8420ARMZ, the LMP8358MA/NOPB uniquely combines SPI-programmable gain, on-chip diagnostics, and <10 µV offset in a single 14-pin SOIC package - eliminating external logic and calibration overhead in adaptive sensor systems.
Availability
LMP8358MA/NOPB is available at Aetrix Electronics and suitable for bridge sensor amplification, thermopile signal conditioning, and precision low-side current sensing requiring stable component supply across automotive, industrial, and medical production programs.
Supply support for LMP8358MA/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 solutions.
The LMP8358MA/NOPB belongs to TI's LMP™ precision amplifier family, designed specifically for high-accuracy, low-drift instrumentation in demanding industrial, automotive, and medical applications.
FAQ
What is the maximum gain error specification for LMP8358MA/NOPB at gain = 1000?
The LMP8358MA/NOPB has a maximum gain error of ±0.25% at gain = 1000, measured at VOUT = VREF ±1 V and TA = 25°C. This value includes contributions from both chip-level error and external resistor matching when configured in external gain mode. The guaranteed limit ensures predictable scaling for high-resolution data acquisition systems relying on 1000× amplification.
Does LMP8358MA/NOPB support true ground-referenced input operation?
Yes, the LMP8358MA/NOPB supports true ground-referenced input operation: its input common-mode voltage range extends from V− − 0.1 V to V+ − 1.4 V. With V− = 0 V, this allows sensing down to −100 mV common-mode - making it ideal for low-side current shunt monitoring and grounded bridge sensors without level-shifting circuitry.
How does the fault detection feature work in LMP8358MA/NOPB?
The LMP8358MA/NOPB implements fault detection by injecting a user-configurable test current (10 nA–100 µA, set via CUR[2:0]) into the +IN and −IN pins. Open circuits cause voltage saturation; shorts produce abnormal current flow. Diagnostic status is reported via SDO during SPI readback or monitored through dedicated flag registers - enabling real-time sensor health verification in safety-critical systems.
What are the power supply requirements for reliable SPI communication with LMP8358MA/NOPB?
For reliable SPI communication, the LMP8358MA/NOPB requires VD = (VHSER/VLPAR) − (VLSER/VHPAR) ≥ 2.5 V, with logic thresholds defined as VIL ≤ 0.3 × VD and VIH ≥ 0.7 × VD. At V+ = 3.3 V or 5.0 V, standard CMOS-level SPI controllers interface directly without level shifters - provided VHSER/VLPAR and VLSER/VHPAR are properly biased.
Can LMP8358MA/NOPB be used in single-supply 3.3V systems?
Yes, the LMP8358MA/NOPB is fully specified for 3.3 V single-supply operation: supply current is 1.8–2.1 mA, input common-mode range spans −0.1 V to +1.9 V, and output swings within 7–30 mV of rails into 10 kΩ loads. Its rail-to-rail output and ground-sensing inputs make it ideal for portable instrumentation and battery-powered sensor nodes operating at 3.3 V.
LMP8358MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 11V/µs
- Gain Bandwidth Product:
- 240 MHz
- -3db Bandwidth:
- 930 kHz
- Current - Input Bias:
- 6 pA
- Voltage - Input Offset:
- 0.9 µV
- Current - Supply:
- 1.9mA
- Current - Output / Channel:
- 41 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMP8358MA/NOPB FAQ
1.How can I place an order for LMP8358MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP8358MA/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 LMP8358MA/NOPB reliable?
The price and inventory of LMP8358MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP8358MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMP8358MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP8358MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP8358MA/NOPB?
LMP8358MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP8358MA/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 LMP8358MA/NOPB?
For technical support, including LMP8358MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP8358MA/NOPB requirements.
6.How does Aetrix verify that LMP8358MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP8358MA/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 LMP8358MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMP8358MA/NOPB?
All LMP8358MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP8358MA/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 LMP8358MA/NOPB part is unused and in its original packaging.
Return procedure for LMP8358MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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