Unlike optocoupler-based solutions, which have an uncertain current transfer ratio over their lifetime and at high temperatures, the ADuM3195 transfer functions do not change over their lifetime, and are stable over a wide temperature range of −40°C to +125°C.
Included in the ADuM3195 are wideband operational amplifiers useful for a variety of commonly used applications. Included in the ADuM3195 are two high-accuracy 2.5 V reference outputs.
The ADuM3195 is packaged in a 16-lead quarter small outline package (QSOP) for a 3000 Vrms isolation voltage rating.
Key Features and Benefits
- High-Impedance input for isolated voltage measurement
- Low offset error and drift (output offset voltage): ±6 mV (Max) at 25°C and −22 μV/°C (Typ)
- Low gain error and drift: ±0.5% (max) and ±27 ppm/°C (max)
- Voltage-supply range
- VDD1: 4.5 V to 5.5 V
- VDD2: 4.5 V to 5.5 V
- Bandwidth: 210 kHz
- Isolation voltage: 3000 V rms for ADuM3195
- Safety and regulatory approvals (pending)
- UL recognition (pending): 3000 V rms for 1 minute per UL 1577
- CSA (pending)
- VDE certificate of conformity (pending)
- DIN VDE V 0884-11:2017-01
- VIORM = 636 V peak (reinforced)
- Wide temperature range
- −40°C to +125°C ambient operation
- 150°C maximum junction temperature
- AEC-Q100 qualified for automotive applications
Applications
- Inverters
- DC to DC converters
- On-board chargers
Evaluation Board
The ADUM3195 can be evaluated with the EVAL-ADUM3195.
Block Diagrams and Tables