Low-Cost, Sink/Source Current DACs Simplify Power-Supply Margin Testing
The DS4422 and DS4424 contain two or four I²C programmable current DACs that are each capable of sinking and sourcing current up to 200μA. Each DAC output has 127 sink and 127 source settings that are programmed using the I²C interface. The current DAC outputs power up in a high-impedance state.
title | Download file |
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DS4422-DS4424 Data Sheet | DS4422-DS4424.pdf |
Part Number | Resolution (bits) | Channels | Output Type | Reference | INL (±LSB) | Interface | Supply Range (V) | Supply Range (V) | ICC (mA) | Package/Pins | Oper. Temp. (°C) | Budgetary Price |
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max | min | max | max | See Notes | ||||||||
DS4422 | 7 | 2 | Current- Buffered | Ext. | 1 | Serial - I2C | 2.7 | 5.5 | 0.25 | TDFN-EP/14 | -40 to +85 | $0.72 @1k |
DS4424 | 4 | TDFN-EP/14 | $0.90 @1k | |||||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
---|---|---|---|---|---|
DS4422EVKIT# | Active | EVKIT; | -40°C to +85°C | See data sheet | |
DS4422N+ | Active | TDFN-EP,;14 pin;9.6 mm² | -40°C to +85°C | Lead Free | |
DS4422N+T&R | Active | TDFN-EP,;14 pin;9.6 mm² | -40°C to +85°C | Lead Free |