1 Features

• Programmable voltage or current outputs with

flexible configuration:

– Voltage outputs:

• 1LSB DNL

• Gains of 1 ×, 1.5 ×, 2 ×, 3 ×, and 4 ×

– Current outputs:

• 1LSB INL and DNL (8-bit)

• Unipolar and bipolar output range options

from 25μA to 250μA

• 10-bit ADC input

– 2LSB INL, 1LSB DNL

• Programmable comparator mode for all channels

• High-impedance output when VDD is off

• High-impedance or resistive pull-down powerdown

modes

• 50MHz SPI-compatible interface

• Automatically detects I2C, SPI, or PMBus®

Interface

– 1.62V VIH with VDD = 5.5V

• General-purpose input/output (GPIO) configurable

to multiple functions

• Predefined waveform generation: sine wave,

triangular, sawtooth

• User-programmable nonvolatile memory (NVM)

• Internal, external, or power-supply as reference

• Wide operating range:

– Power supply: 1.8V to 5.5V

– Temperature range: –40˚C to +125˚C

• Tiny package: 16-pin DSBGA (1.76mm × 1.76mm)

2 Applications

• Optical module

• Standard notebook PC

3 Description

The 10-bit AFE53004W and 12-bit AFE63004W

(AFEx3004W) is a family of 4-channel, ultra-low

power smart analog-front-end (AFE) devices. These

devices feature one shared 10-bit analog-to-digital

converter (ADC) with four independent channels.

Each channel is independently configurable as a

buffered voltage output digital-to-analog converter

(DAC), programmable current output DAC, or an

input to the shared ADC. The devices support Hi-

Z power-down mode and Hi-Z output during poweroff

conditions. The analog outputs provide a forcesense

option for use as a programmable comparator

and current sink. The multifunction GPIO, function

generation, and NVM enable these smart AFEs for

processor-less applications and design reuse. These

devices automatically detect I2C, PMBus, and SPI,

and contain an internal reference.

The flexibility and the feature set of the smart AFE

combined with tiny package and ultra low-operating

power make these devices an excellent choice for

small, battery-operated systems.