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The AD4131-4BCPZ is an ultra-low-power, high-accuracy measurement solution for low-bandwidth battery-powered applications. The fully integrated analogue front end (AFE) includes a multiplexer (up to 8 single-ended or 4 differential inputs), programmable gain amplifier (PGA), 16-bit sigma-delta (Σ-Δ) analogue-to-digital converter (ADC), on-chip references and oscillators, optional filter options, flexible sequencers, transducer bias and excitation options, diagnostics, and additional features to improve battery operating life ( duty cycle).

Product Features

Ultra-low current consumption (typical)

32 μA: continuous conversion mode (gain = 128)

5 μA: Duty cycle mode (ratio = 1/16)

0.5 μA: Standby mode

0.1 μA: Power-down mode

Built-in functions for system-level power saving

Current saving duty cycle: 1/4 or 1/16

Single supply voltage as low as 1.71 V for extended battery life

RMS noise: 25 nV rms at 1.17 SPS (gain = 128) - 48 nV/√Hz

Up to 16 noise-free bits (gain = 1)

Output data rate: 1.17 SPS to 2.4 kSPS

Operates from 1.71 V to 3.6 V single supply or ±1.8 V split supply

Bandgap reference with 15 ppm/°C maximum drift

PGA with rail-to-rail analogue inputs

Adjustable sensor interface capability

Matched programmable excitation current for RTDs

On-chip bias voltage generator for thermocouples

Low-side power switch for bridge sensors

Sensor open wire detection

Internal temperature sensor and oscillator

Self and system calibration

Flexible filter options

Simultaneous 50 Hz/60 Hz rejection (on selected filter options)

Universal outputs

Flexible sequencer

Diagnostic functions

Crosspoint multiplexed inputs

4 differential/8 pseudo-differential inputs

5 MHz SPI (3-wire or 4-wire)

32-lead, 5 mm × 5 mm LFCSP package

Temperature range -40°C to +125°C (LFCSP)

Applications

Smart Transmitters

Wireless battery and harvester-powered sensor nodes

Portable instruments

Temperature measurement: thermocouples, RTDs, thermistors

Pressure measurement: bridge sensors

Healthcare and wearable devices

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.