Analog Devices Inc. ADUM4195-1 Isolated Amplifiers

Analog Devices Inc. ADUM4195-1 Isolated Amplifiers utilize ADI’s iCoupler® technology. The ADUM4195-1 features very low offset and gain error, suitable for many isolated voltage sensing applications.

The ADI ADuM4195-1 amplifiers transfer function does not change over its lifetime and is stable over a -40°C to +125°C wide temperature range. This differs from optocoupler-based solutions, which have an uncertain current transfer ratio over a lifetime and is unstable at high temperatures.

The ADuM4195-1 has been certified to deliver galvanic isolation up to 5kV_RMS according to UL1577 and is housed in a tiny 8-lead comprehensive body SOIC package with increased creepage.

Features

High-impedance input for isolated voltage measurement
Fixed gain = 1
Low offset error and drift of ±5mV (maximum) at +25°C and -22µV/°C (typical)
Low gain error and drift of ±50.5% (maximum) and ±42ppm/°C (maximum)
- ±0.5% (maximum) and ±42ppm/°C (maximum)
Voltage-supply range
- V_DD1 at 4.5V to 5.5V
- V_DD2 at 4.5V to 5.5V
Bandwidth of 210kHz

Isolation voltage of 5000V_RMS
Safety and regulatory approvals (pending)
- UL recognition: 5000V_RMS for 1 minute per UL 1577
- CSA Component Acceptance Notice #5A
- VDE certificate of conformity
- DIN V VDE V 0884-11 (VDE V 0884-11)
- V_IORM = 1401V peak
Wide temperature range
- -40°C to +125°C ambient operation
- +150°C maximum junction temperature
AEC-Q100 qualified for automotive applications

Applications

Inverters
DC-DC converters
On-board chargers

Analog Devices Inc. ADUM4195-1 Isolated Amplifiers

Features

Applications

Block Diagram

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