Differential Isolated Amplifier
Differential Isolated Amplifier

Product Details

General Description

The CA-IS1200 devices are high-precision isolated amplifiers and optimized for shunt-resistor-based current sensing. Low offset and gain error and drift guarantee that measuring accuracy is maintained over the entire operating temperature range.

The CA-IS1200 devices utilize silicon oxide (SiO2) isolation barriers and support up to 3750-VRMS (CA-IS1200U) or 5000-VRMS (CA-IS1200G) galvanic isolation per UL 1577. This technology separates high- and low-voltage domain to protect lower-voltage parts from damage and provides low emissions as well as strong anti-interference capability from magnetic changes. The high common-mode transient immunity (CMTI) means that the CA-IS1200 devices transmit correct signals through isolation barriers and are suitable for industrial motor controls and drives which require high-voltage and high-power switching. The internal input common-mode overvoltage and missing high-side supply voltage detection functions contribute to fault diagnostics and system safety.

The CA-IS1200 devices are packaged in 8-pin DUB or wide-body SOIC packages and specified over the extended industrial temperature range of –40°C to 125°C.

Differential Input Voltage Range±250 mV
Fixed Initial Gain8
Low Input Offset and Drift±1 mV (max) at 25°C, ±4 μV/°C (max)
Low Gain Error and Drift±0.5% (max) at 25°C, ±50 ppm/°C (max)
Low Nonlinearity and Drift:0.01% (typ) for Full Scale, ±1 ppm/°C (typ)
3.3-V or 5-V Operation for Both High- and Low-Side
High CMTI±150 kV/µs (typ)
Wide Operating Temperature Range–40°C to 125°C
PackageDUB8 (U)、SOIC8-WB (G)

◎ Industrial Motor Controls and Drives
◎ Isolated Switch Mode Supplies
◎ Uninterruptible Power Supplies

Device information
Part NumberPackageBody SIze (NOM)
CA-IS1200UDUB8 (U) 9.20mm×6.35mm
CA-IS1200G SOIC8-WB (G) 5.85 mm × 7.50 mm
Simplified Channel Structure

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