Programmable Settling Time to 0.5 LSB

2.5 μs or 12.5 μs Typ

Two 12-Bit CMOS Voltage Output DACs in

an 8-Pin Package

Simultaneous Updates for DAC A and

DAC B

Single Supply Operation

3-Wire Serial Interface

High-Impedance Reference Inputs

Voltage Output Range . . . 2 Times the

Reference Input Voltage

Software Powerdown Mode

Internal Power-On Reset

TMS320 and SPI Compatible

Low Power Consumption:

– 3 mW Typ in Slow Mode,

– 8 mW Typ in Fast Mode

Input Data Update Rate of 1.21 MHz

Monotonic Over Temperature

Available in Q-Temp Automotive

HighRel Automotive Applications

Configuration Control/Print Support

Qualification to Automotive Standards

applications

Battery Powered Test Instruments

Digital Offset and Gain Adjustment

Battery Operated/Remote Industrial

Controls

Machine and Motion Control Devices

Cellular Telephones

description

The TLC5618 is a dual 12-bit voltage output

digital-to-analog converter (DAC) with buffered

reference inputs (high impedance). The DACs

have an output voltage range that is two times the

reference voltage, and the DACs are monotonic.

The device is simple to use, running from a single

supply of 5 V. A power-on reset function is

incorporated in the device to ensure repeatable

start-up conditions.

Digital control of the TLC5618 is over a 3-wire

CMOS-compatible serial bus. The device receives

a 16-bit word for programming and

producing the analog output. The digital inputs

feature Schmitt triggers for high noise immunity.

Digital communication protocols include the

SPI?, QSPI?, and Microwire? standards.

Two versions of the device are available. The

TLC5618 does not have an internal state machine

and is dependent on all external timing signals. The TLC5618A has an internal state machine that counts the

number of clocks from the falling edge of CS and then updates and disables the device from accepting further

data inputs. The TLC5618A is recommended for TMS320 and SPI processors, and the TLC5618 is

recommended only for SPI or 3-wire serial port processors. The TLC5618A is backward-compatible and

designed to work in TLC5618 designed systems.