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Texas Instruments LMP90080QMHE/NOPB
- Part No.:
- LMP90080QMHE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog Front End (AFE)
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMP90080QMHE/NOPB.pdf
- Description:
- IC AFE 1 CHAN 16BIT 28HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,213
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Product details
Overview
LMP90080QMHE/NOPB from Texas Instruments is a multi-channel 16-bit sensor analog front-end (AFE) IC featuring true continuous background calibration, 16-bit sigma-delta ADC, programmable gain (1×–128×), and dual matched excitation current sources (100–1000 µA). It serves as the precision signal conditioning core in automotive and industrial sensor systems requiring high accuracy over –40°C to +150°C.
For engineers reviewing the LMP90080QMHE/NOPB datasheet, LMP90080QMHE/NOPB pinout, LMP90080QMHE/NOPB application, or LMP90080QMHE/NOPB equivalent, key selection considerations include its background-calibrated ENOB up to 16 bits at 13.42 SPS, integrated chopper-stabilized buffer, flexible 4-diff/7-se input mux, and diagnostic support for open/short and out-of-range sensor faults.
Technical Context
The LMP90080QMHE/NOPB implements a 16-bit sigma-delta ADC with dual-stage digital filtering and supports independent gain (1×–128×) and output data rate (1.6775–214.65 SPS) per channel. Its true continuous background calibration corrects gain and offset errors without interrupting conversion, enabling stable measurement across temperature and time.
It integrates two matched excitation current sources (IB1/IB2), a flexible analog input multiplexer supporting 4 differential or 7 single-ended channels, and SPI 4/3-wire interface with CRC error detection. The device includes chopper-stabilized input buffers and supports 50/60 Hz line rejection at ODR ≤13.42 SPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit ADC with ±1 LSB INL max ensures accurate digitization of low-level sensor outputs without code missing. |
| ENOB / NFR | Up to 16 bits / 16 bits at 1.6775 SPS enables noise-free resolution suitable for high-precision RTD and strain gauge measurements. |
| Offset Error (typ) | 8.4 nV at gain = 128 eliminates need for system-level zero-point recalibration in critical temperature transmitters. |
| Gain Error (typ) | 7 ppm at gain = 1 minimizes full-scale scaling error in ratiometric bridge sensor interfaces. |
| Total Noise | <10 µV-rms at gain = 128 and 13.42 SPS supports sub-0.01% measurement repeatability in pressure sensing. |
| Operating Temp | –40°C to +150°C rated operation meets AEC-Q100 Grade 0 requirements for under-hood automotive applications. |
| Output Data Rates | 1.6775–214.65 SPS with single-cycle settling allows dynamic trade-off between noise performance and response time per channel. |
Pinout & Package
Package: 28-pin HTSSOP with exposed thermal pad (RoHS-compliant, lead-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA (Pin 1) | Analog supply | +4.75 V to +5.5 V analog power rail; powers ADC core, PGA, and reference circuitry. |
| VIN0–VIN7 (Pins 2–7, 10–11) | Analog inputs | Configurable as 4 differential (VIN0–VIN1, etc.) or 7 single-ended inputs; supports thermocouple, RTD, and bridge sensors. |
| VREFP1/VREFN1 (Pins 8–9) | Primary reference inputs | Differential reference pair (0.5 V to VA) for ratiometric measurements; supports external precision references. |
| IB1/IB2 (Pins 12–13) | Excitation current outputs | Matched 100–1000 µA programmable current sources for 2-/3-/4-wire RTD biasing with <0.5% matching error. |
| SCLK/SDI/SDO/CSB (Pins 17–20) | SPI interface | 4-wire SPI with CRC error detection; SDO doubles as DRDYB for ready-synchronized data capture. |
| D0–D6 (Pins 21–27) | GPIO | 7 general-purpose I/O pins for LED control, switch monitoring, or isolation barrier interfacing. |
| VIO (Pin 28) | Digital supply | +2.7 V to +5.5 V logic supply; independent of VA, enabling mixed-voltage system integration. |
Key Features
| Feature | Design Value |
|---|---|
| True continuous background calibration | Eliminates gain/offset drift over temperature and time without interrupting conversion-no field recalibration required. |
| Continuous background sensor diagnostics | Detects open/short circuits and out-of-range signals on all channels autonomously, improving system reliability without host intervention. |
| Flexible input MUX architecture | Supports any VINx–VINy differential pair or VINx-to-common single-ended configuration, enabling cross-channel sensor path validation. |
| Programmable gain amplifier (PGA) + fixed gain amplifier (FGA) | Combined 1×–128× gain settings eliminate external op-amps and reduce board space in multi-sensor nodes. |
| Chopper-stabilized input buffer | Reduces input offset voltage to <10 nV and minimizes 1/f noise-critical for low-frequency thermistor and load cell signals. |
Applications
| Temperature Transmitter | Strain Gauge Interface |
|---|---|
Use Scenario: High-accuracy 4–20 mA loop-powered transmitter for engine coolant or exhaust gas temperature monitoring in automotive powertrain systems. IC Role / Device Role / Timing Role: Primary AFE digitizing thermistor or RTD signals with ratiometric reference and excitation current sourcing. Use Value: Background calibration maintains ±0.1°C accuracy over 15-year vehicle life without maintenance or recalibration cycles. | Use Scenario: Load cell signal conditioning in industrial weigh scales and hydraulic pressure sensors operating in harsh factory environments. IC Role / Device Role / Timing Role: Precision bridge excitation and differential amplification with 50/60 Hz line rejection at 13.42 SPS. Use Value: Integrated 100–1000 µA matched current sources enable direct 4-wire RTD connection, reducing BOM count by 2 external DACs. |
| Industrial Process Control | Pressure Transmitter |
Use Scenario: Distributed I/O module for chemical plant process controllers requiring SIL-2 functional safety compliance and long-term stability. IC Role / Device Role / Timing Role: Multi-channel sensor hub with independent ODR/gain per channel and GPIO-controlled diagnostics. Use Value: Continuous sensor diagnostics detect broken wires or sensor failure before process deviation occurs-enabling predictive maintenance. | Use Scenario: Differential pressure measurement in HVAC chillers using silicon piezoresistive sensors with mV-level output. IC Role / Device Role / Timing Role: Low-noise PGA + sigma-delta ADC with chopper buffer for DC-coupled, high-resolution digitization. Use Value: 16-bit ENOB at 214.65 SPS supports fast transient response while maintaining <0.02% full-scale repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor AFE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS124S08IPW | 24-bit delta-sigma ADC, no integrated excitation currents, requires external PGA and reference. | Better resolution but higher power and larger PCB footprint; lacks built-in diagnostics and background calibration. | Select when ultra-high resolution (>20-bit) is mandatory and external component count is acceptable. |
| LMP90100MHE/NOPB | Same family, 20-pin HTSSOP, fewer analog inputs (2-diff/4-se), identical calibration and diagnostics architecture. | Lower channel count and reduced GPIO count; same -40°C to +150°C rating and excitation current specs. | Select for space-constrained designs where 4-channel capability suffices and thermal pad layout is simplified. |
Compared with ADS124S08IPW, the LMP90080QMHE/NOPB delivers lower system-level cost and faster time-to-market via integrated excitation, calibration, and diagnostics-while offering sufficient 16-bit precision for most automotive and industrial transmitters. Against LMP90100MHE/NOPB, it provides greater channel flexibility and enhanced fault coverage at minimal footprint increase.
Availability
LMP90080QMHE/NOPB is available at Aetrix Electronics and suitable for automotive temperature transmitters, industrial pressure sensors, and process control modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LMP90080QMHE/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 data converters and automotive-grade ICs.
The LMP90080QMHE/NOPB belongs to TI's LMP900xx-Q1 sensor AFE product line, designed specifically for high-reliability automotive and industrial applications demanding continuous self-calibration, robust diagnostics, and AEC-Q100 qualification.
FAQ
What is the maximum output data rate supported by the LMP90080QMHE/NOPB?
The LMP90080QMHE/NOPB supports eight selectable output data rates ranging from 1.6775 SPS to 214.65 SPS. At the highest rate (214.65 SPS), the device achieves single-cycle settling and maintains 16-bit ENOB at gain = 1, making it suitable for fast-response pressure or flow sensing applications where moderate noise performance is acceptable.
Does the LMP90080QMHE/NOPB require external calibration components?
No, the LMP90080QMHE/NOPB does not require external calibration components. Its true continuous background calibration feature automatically corrects gain and offset errors across temperature and time without interrupting the signal path. This eliminates the need for external trim resistors, calibration DACs, or periodic field recalibration procedures-reducing system complexity and lifetime maintenance costs.
How many analog input channels does the LMP90080QMHE/NOPB support?
The LMP90080QMHE/NOPB supports up to four fully differential analog input channels (VIN0–VIN1, VIN2–VIN3, VIN4–VIN5, VIN6–VIN7) or seven single-ended channels using any input as common. The flexible input multiplexer allows arbitrary pairing of VINx and VINy, enabling custom sensor configurations such as thermocouple cold-junction compensation with RTD reference.
What is the operating temperature range of the LMP90080QMHE/NOPB?
The LMP90080QMHE/NOPB is qualified for operation from –40°C to +150°C and meets AEC-Q100 Grade 0 requirements. This extended temperature range enables reliable deployment in under-hood automotive applications, industrial motor drives, and oil & gas downhole instrumentation where ambient temperatures exceed standard commercial-grade limits.
Can the LMP90080QMHE/NOPB drive RTD sensors directly?
Yes, the LMP90080QMHE/NOPB can drive RTD sensors directly using its two matched internal excitation current sources (IB1 and IB2), programmable from 100 µA to 1000 µA in 100 µA steps. These sources support 2-, 3-, and 4-wire RTD configurations with <0.5% matching error and <60 ppm/°C drift, eliminating the need for external current DACs or precision resistors in temperature measurement circuits.
LMP90080QMHE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Number of Channels:
- 1
- Power (Watts):
- -
- Voltage - Supply, Analog:
- 2.85V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
LMP90080QMHE/NOPB FAQ
1.How can I place an order for LMP90080QMHE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP90080QMHE/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 LMP90080QMHE/NOPB reliable?
The price and inventory of LMP90080QMHE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP90080QMHE/NOPB is usually 5 days.
3.What payment methods are accepted for LMP90080QMHE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP90080QMHE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP90080QMHE/NOPB?
LMP90080QMHE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP90080QMHE/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 LMP90080QMHE/NOPB?
For technical support, including LMP90080QMHE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP90080QMHE/NOPB requirements.
6.How does Aetrix verify that LMP90080QMHE/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP90080QMHE/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 LMP90080QMHE/NOPB meets industry standards.
7.What is the process for return or replacement of LMP90080QMHE/NOPB?
All LMP90080QMHE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP90080QMHE/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 LMP90080QMHE/NOPB part is unused and in its original packaging.
Return procedure for LMP90080QMHE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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