
AM422-1 is a compact voltage-to-current converter IC for 3-wire operation with integrated protection functions and voltage source. It converts a single-ended input voltage into a current output signal with adjustable offset and gain. The IC is especially suitable for price sensitive industrial applications with single-ended input signals.
Applications
Short Specifications
| Supply Voltage (VCC) | 6 .. 35 V (typ. 24 V) |
| Input voltage range | 0 .. 1.15 V (single-ended) |
| Current output | e.g. 0 .. 20 mA or 4 .. 20 mA (three-wire), adjustable |
| Reference voltage source | 5 / 10 V (max. 10 mA) |
| Temperature range | -40 °C .. 85 °C |
| Protection functions | Reverse polarity protection, output current limitation |
| Package / Delivery forms | SO8, on DIL8-adapter, sawn 6″ wafer on blue foil |
| RoHS status | compliant |
General Documents
| Datasheet AM422-1 | |
| Product flyer AM422-1 | |
| IC package catalog |
Typical Application Circuit with Blockdiagram

Ordering Codes
| Order number | Delivery form | |
|---|---|---|
| AM422-1-0-SO8 | SO8 package | |
| AM422-1-WAF | sawn wafer on 6″ blue foil | |
| AM422-1-Adapt | AM422-1 soldered to an SO8-DIL8 adapter |
Accessories
| Order Number | Description | |
|---|---|---|
| BBAM422-1 | An easily adaptable, preassembled breadboard. Suitable for first experiments using AM422-1 |