Broadcom Inc. Automotive R²Coupler™ Optically Isolated Sigma-Delta Modulator ACPL-C797T-000E

The Avago ACPL-C797T is an optically isolated 1-bit, 2^nd order Sigma-Delta (Σ-Δ) modulator device that is automotive qualified per AEC-Q100 Grade 1. The device converts an analog input signal into a high speed data stream with galvanic isolation based on optical coupling technology. The device operates from a 5V power supply, and has a dynamic range of 79 dB. The differential input range of ±200 mV (full scale ±320 mV) is ideal for direct connection to shunt resistors or other low level signal sources in applications such as motor phase current measurement.

The ACPL-C797T isolated modulator converts a low bandwidth analog input into a high speed 1-bit data stream by means of Sigma-Delta (Σ-Δ) over-sampling modulator. The modulator data and on-chip sampling clock are encoded and transmitted across the isolation barrier where they are recovered and decoded into separate high speed clock and data channels. Combined with superior optical coupling technology, the modulator delivers high noise margin and excellent immunity against isolation-mode transients.

Offered in a compact, surface mount stretched SO-8 package, the device delivers the reliability, small size, superior isolation and stable performance across automotive temperature range that motor drive designers need to accurately measure current. Avago R²Coupler isolation products provide the reinforced insulation and reliability needed for critical automotive and high temperature industrial applications.

OPTOCOUPLER, ISOLATED, 5KV, SSO-8; No. of Channels:1 Channel; Optocoupler Case Style:SSO; No. of Pins:8Pins; Isolation Voltage:5kV; CTR Min:-; Bandwidth:-; Product Range:-; SVHC:No SVHC (12-Jan-2017); No. of Channel RoHS Compliant: Yes