AMC1204BDWR

AMC1204BDWR is a quad-channel isolated amplifier from Analog Devices. It provides galvanic isolation between four analog input channels and their corresponding outputs, allowing low-voltage control circuitry to interface safely with high-voltage power electronics.
Key points:
- Four isolated amplifier channels with fixed gain and differential inputs; isolated outputs.
- Isolation technology (iCoupler-based) with separate primary and secondary power rails.
- Designed for precision sensing in HV environments: motor drives, inverters, power monitoring, and shunt-current sensing.
- Typical use: feed sensors or shunts on the primary side, power the input and output sides with isolated supplies, and route the isolated outputs to ADCs on the system side.
How to use:
- Connect each channel’s input to the sensor/shunt on the primary side.
- Provide isolated power to both sides (input side and output side) and proper decoupling.
- Read the isolated outputs with ADCs on the secondary side.
Note: BDWR denotes a specific package/reel option. For exact specs (gain, bandwidth, input range, isolation voltage), consult the AMC1204BDWR datasheet.

AMC1204BDWR is a 4-channel isolated analog amplifier. Key features:
- Four independent, galvanically isolated amplifier channels
- Isolation rating typically 2.5 kV rms (input to output)
- Unity-gain (per-channel) amplification for accurate shunt-sense signals
- Differential, low-level input suitable for current-sense applications
- Rail-to-rail output on the isolated side (compatible with 3.3V/5V supplies)
- Requires isolated power rails on both sides; supports common isolated supply schemes
- Low input offset and drift; good CMRR and fast response
- Broad industrial/automotive temperature range
- Packaging: RoHS-compliant, usually a small 16-pin package (BDWR suffix indicates package/tape/reel)

AMC1204BDWR comes in an 8-pin small-outline (SOIC-8) package, RoHS-compliant, typically in tape-and-reel packaging.

Pin count: 8 pins (8-pin package, e.g., SOIC-8).
Function: One-channel isolated amplifier. It has a differential input (VIN+ and VIN−) on the primary side powered by VDD1/GND1, and an isolated output on the secondary side powered by VDD2/GND2, with the output available at VOUT (relative to GND2). The isolation barrier separates the input and output domains, enabling safe transmission of the sensed signal across isolation.

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital integrated circuits and other semiconductor products.

- Isolated sensing for power electronics: current and voltage feedback in motor drives, inverters, and switch-mode power supplies
- Energy metering and grid monitoring
- Renewable-energy systems and high-voltage power conversion
- Isolated data acquisition and control in industrial automation
- HV-isolated instrumentation requiring safety and noise immunity

Equivalent parts depend on your specs (isolation voltage, gain, bandwidth, channel count). Closest TI cross-reference: other AMC family members (e.g., AMC1200/AMC1201/AMC1203 in different packages). Non‑TI options include galvanically isolated amplifiers from Analog Devices (ADuM/isolated analog amps), Broadcom/Avago HCPL series, and Silicon Labs isolation amplifiers. For an exact pin-compatible cross, provide isolation rating, input range, gain, and bandwidth and I’ll map precise substitutes.