DAC7578SPWR.B中文资料德州仪器数据手册PDF规格书

1FEATURES

23• Relative Accuracy:

– DAC5578 (8 bit): 0.25LSB INL

– DAC6578 (10 bit): 0.5LSB INL

– DAC7578 (12 bit): 1LSB INL

• Glitch Energy: 0.15nV-s

• Power-On Reset to Zero Scale or Midscale

– Devices in the TSSOP Package Reset to

Zero Scale

– Devices in the QFN Package Reset to Zero

Scale or Midscale

• Ultra-Low Power Operation: 0.13mA/ch at 5V

• Wide Power-Supply Range: +2.7V to +5.5V

• 2-Wire Serial Interface ( I2C™ compatible)

• Temperature Range: –40°C to +125°C

APPLICATIONS

• Portable Instrumentation

• Closed-Loop Servo Control

• Process Control

• Data Acquisition Systems

DESCRIPTION

The DAC5578 (8 bit), DAC6578 (10 bit), and

DAC7578 (12 bit) are low-power, voltage-output, octal

channel, digital-to-analog converters (DACs). The

devices are monolithic, provide good linearity,and

minimize undesired code-to-code transient voltages

(glitch).

The devices use a versatile, 2-wire serial interface

that is I2C-compatible and operates at clock rates of

up to 3.4MHz. Multiple devices can share the same

bus.

The devices incorporate a power-on-reset (POR) circuit that ensures the DAC output powers up to

zero-scale or midscale until a valid code is written to

the device. These devices also contain a power-down

feature, accessed through the serial interface, that

reduces the current consumption of the devices to

typically 0.42μA at 5V. Power consumption is typically

2.32mW at 3V, reducing to 0.68μW in power-down

mode. The low power consumption and small

footprint make these devices ideal for portable,

battery-operated equipment.

The DAC5578, DAC6578, and DAC7578 are drop-in and functionally-compatible with the DAC7678. All

devices are available in a 4x4, QFN-24 package and

a TSSOP-16 package.