DS4412U+T&R 数模转换器 MAXIM

DS4412U+T&R

数模转换器- DAC 2 Ch I2C Adj Sink/Source Current

Dual-Channel, I2C Adjustable  Sink/Source Current DAC

DS4412U+ General Description

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 highimpedance state.

DS4412U+ 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

DS4412U+ Applications

Power-Supply Adjustment

Power-Supply Margining

Adjustable Current Sink or Source

Voltage Range on VCC, SDA, and SCL

Relative to Ground.............................................-0.5V to +6.0V

Voltage Range on OUT0, OUT1 Relative to

Ground ................-0.5V to (VCC + 0.5V) (Not to exceed 6.0V.)

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-55°C to +125°C

Soldering Temperature .....................................Refer to IPC/JEDEC

J-STD-020 Specification