DS4412：Dual-Channel, I²C Adjustable Sink/Source Current DAC

Inexpensive Power Supply Control Made Easy

The DS4412 contains two I²C adjustable-current DACs that are each capable of sinking or sourcing current. Each output has 15 sink and 15 source settings that are programmed by I²C interface. The full-scale range and step size of each output is determined by an external resistor that can adjust the output current over a 4:1 range. The output pins, OUT0 and OUT1, power-up in a high-impedance state.

Key Features

Two Current DACs
Full-Scale Current 500µA to 2mA
Full-Scale Range for Each DAC Determined by External Resistors
15 Settings Each for Sink and Source Modes
I²C-Compatible Serial Interface
Low Cost
Small Package (8-Pin µSOP)
-40°C to +85°C Temperature Range
2.7V to 5.5V Operation

DS4412: Typical Operating Circuit

Applications/Uses

Adjustable Current Sink or Source
Power-Supply Adjustment
Power-Supply Margining

DataSheet

title	Download file
DS4412 Data Sheet	DS4412.pdf

Parametrics

Part Number	Resolution (bits)	Channels	Output Type	Reference	INL (±LSB)	Interface	Supply Range (V)	Supply Range (V)	I_CC (mA)	Package/Pins	Oper. Temp. (°C)	Budgetary Price
Part Number	Resolution (bits)	Channels	Output Type	Reference	max	Interface	min	max	max	Package/Pins	Oper. Temp. (°C)	See Notes
DS4412	4	2	Current- Buffered	Ext.	1	Serial - I2C	2.7	5.5	0.5	µMAX/8	-40 to +85	$0.56 @1k