ACPL-C799T-000E中文资料Automotive R²Coupler™ Optically Isolated Sigma-Delta Modulator数据手册Broadcom规格书

描述 Description

The Broadcom® ACPL-C799T is a 1-bit, second-order sigma-delta (Σ-Δ) modulator that converts an analog input signal into a high-speed data stream with galvanic isolation based on optical coupling technology. The ACPL-C799T operates from a 5V power supply with dynamic range of 77 dB with an appropriate digital filter. The differential inputs of ±50 mV (full scale ±80 mV) are ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.The ACPL-C799T isolated modulator converts a low bandwidth analog input into a high-speed, one-bit data stream by means of a Sigma-Delta (Σ-Δ) over-sampling modulator. The modulator data and on-chip sampling clock are encoded and transmitted across the isolation boundary where they are recovered and decoded into separate highspeed clock and data channels. Combined with superior optical coupling technology, the modulator delivers high noise margins and excellent immunity against isolationmode transients.Offered in a compact SSO-8 package, the isolated ADC delivers the reliability, small size, superior isolation and over-temperature performance that motor drive designers need to accurately measure current. Broadcom R2Coupler™ isolation products provide the reinforced insulation and reliability needed for critical automotive and high-temperature industrial applications.

特性 Features

• Qualified to AEC-Q100 Grade 1 Test Guidelines
• 10-MHz internal clock
• Signal-to-Noise Ratio: 77 dB Typ.
• Superior optical isolation and insulation
• Safety and regulatory approval:
– IEC/EN/DIN EN 60747-5-5: 1414 VPEAK working              insulation voltage– UL 1577: 5000 VRMS/1 minute isolation voltage– CSA: Component Acceptance Notice #5

应用 Application

Automotive Battery Pack Current Sensing
Automotive Motor Phase and Rail Current Sensing
Automotive Inverter DC Bus Current sensing
Automotive\\u00a0DC/DC Converter Current Sensing
Automotive AC/DC (Charger) Current Sensing
General Purpose\\u00a0Voltage/Current Sensing and Monitoring \\u00a0