The ADS131E04 is a multi-channel, simultaneous sampling, 24-bit and 16-bit delta-sigma (ΔΣ) analog-to-digital converter (ADC) family. This article introduces the ADS131E04 features, application range, reference design circuitry, and circuit analysis to help you reduce design time. .
ADS131E04 features:
The ADS131E0x is assembled with the features required for industrial power monitoring, control, and protection applications. The ADS131E0x input can be independently and directly interfaced to a resistor divider network or a transformer to measure voltage. This input can be connected to a current transformer or Rogowski coil to measure current. With high integration and outstanding performance, the ADS131E0x family creates scalable industrial power systems with significant reduction in size, power consumption and overall cost.
Features: 8 differential current and voltage inputs, 1 dynamic performance on thousands of samples per second (ksps): 118dB, total harmonic distortion (THD): -90dB at 50Hz and 60Hz, voltage range: analog: +3V To +5V (unipolar) ±2.5V (bipolar, DC coupling allowed); Digital: +1.8V to +3.6V, low power consumption: 2mW per channel, data rate: 1, 2, 4, 8, 16 32, and 64kSPS, programmable gain (1, 2, 4, 8, and 12), serial peripheral interface (SPI) data interface, and four general purpose input and output interfaces (GPIO).
Typical applications for the ADS131E04 include: protection relays, circuit breakers, flow meters
ADS131E04 internal structure block diagram:
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