The ADuM3190 is an isolated error amplifier based on Analog Devices, Inc., iCoupler® technology. The ADuM3190 is ideal for linear feedback power supplies. The primary side controllers of the ADuM3190 enable improvements in transient response, power density, and stability as compared to commonly used optocoupler and shunt regulator solutions.
Unlike optocoupler-based solutions, which have an uncertain current transfer ratio over lifetime and at high temperatures, the ADuM3190 transfer function does not change over its lifetime, and it is stable over a wide temperature range of −40°C to +125°C.
Included in the ADuM3190 is a wideband operational amplifier for a variety of commonly used power supply loop compensation techniques. The ADuM3190 is fast enough to allow a feedback loop to react to fast transient conditions and overcurrent conditions. Also included is a high accuracy 1.225 V reference to compare with the supply output setpoint.
The ADuM3190 is packaged in a small 16-lead QSOP package for a 2.5 kV rms isolation voltage rating.
Features and BenefitsDIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 565 V peak −40°C to +125°C ambient operation | Interface & IsolationLinear ProductsAutomotive
Reference Designs |
| Document | note |
| ADuM3190: High Stability Isolated Error Amplifier Data Sheet (Rev. A) | PDF 765 kB |
| Document | note |
| AN-1316: Generating Multiple Isolated Bias Rails for IGBT Motor Drives with Flyback, SEPIC, and Ćuk Combination (Rev. 0) | PDF 522.41 K |
| Document | note |
| UG-534: iCoupler ADuM3190 Isolated Error Amplifier Evaluation Board | PDF 611 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADUM3190ARQZ Production | 16 ld QSOP | OTH 98 | -40 to 85C | 1.2 | 1.04 | Y |
| ADUM3190ARQZ-RL7 Production | 16 ld QSOP | REEL 1000 | -40 to 85C | 0 | 1.04 | Y |
| ADUM3190BRQZ Production | 16 ld QSOP | OTH 98 | -40 to 85C | 1.29 | 1.12 | Y |
| ADUM3190BRQZ-RL7 Production | 16 ld QSOP | REEL 1000 | -40 to 85C | 0 | 1.12 | Y |
| ADUM3190SRQZ Production | 16 ld QSOP | OTH 98 | -40 to 125C | 1.32 | 1.14 | Y |
| ADUM3190SRQZ-RL7 Production | 16 ld QSOP | REEL 1000 | -40 to 125C | 0 | 1.14 | Y |
| ADUM3190TRQZ Production | 16 ld QSOP | OTH 98 | -40 to 125C | 1.42 | 1.23 | Y |
| ADUM3190TRQZ-RL7 Production | 16 ld QSOP | REEL 1000 | -40 to 125C | 0 | 1.23 | Y |
| ADUM3190WSRQZ Production | 16 ld QSOP | OTH 98 | -40 to 125C | 1.65 | 1.43 | Y |
| ADUM3190WSRQZ-RL7 Production | 16 ld QSOP | REEL 1000 | -40 to 125C | 0 | 1.43 | Y |
| ADUM3190WTRQZ Production | 16 ld QSOP | OTH 98 | -40 to 125C | 1.77 | 1.54 | Y |
| ADUM3190WTRQZ-RL7 Production | 16 ld QSOP | REEL 1000 | -40 to 125C | 0 | 1.54 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-ADUM3190EBZ | Evaluation Board | 49 | Y |
