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16-Channel, 12-Bit Voltage-Output DAC

with 14-Bit Increment Mode

*Protected by U.S. Patent No.

FEATURES

High Integration:

16-Channel DAC in 12 mm

12 mm CSPBGA

14-Bit Resolution via Increment/Decrement Mode

Guaranteed Monotonic

DSP Compatible

3-Wire Serial Interface

Output Impedance 0.5

Output Voltage Range

2.5 V (AD5516-1)

5 V (AD5516-2)

10 V (AD5516-3)

Asynchronous Reset Facility (via

RESET Pin)

Asynchronous Power-Down Facility (via PD Pin)

Daisy-Chain Mode

Temperature Range: –40 C to +85 C

APPLICATIONS

Level Setting

Instrumentation

Automatic Test Equipment

Optical Networks

Industrial Control Systems

Data Acquisition

Low Cost I/O

FUNCTIONAL BLOCK DIAGRAM

RESET

BUSY

DACGND

AGND

DGND

DCEN

AD5516

DAC

DAC

DAC

DAC

REF_IN

PD

POWER-DOWN

LOGIC

SCLK

INTERFACE

CONTROL

LOGIC

7-BIT BUS

ANALOG

CALIBRATION

LOOP

MODE1

MODE2

GENERAL DESCRIPTION

The AD5516 is a 16-channel, 12-bit voltage-output DAC. The

selected DAC register is written to via the 3-wire serial inter-

face. DAC selection is accomplished via address bits A3–A0.

14-bit resolution can be achieved by fine adjustment in Incre-

ment/Decrement Mode (Mode 2). The serial interface operates

at clock rates up to 20 MHz and is compatible with standard

SPI, MICROWIRE, and DSP interface standards. The output

voltage range is fixed at

±2.5 V (AD5516-1), ±5 V (AD5516-2),

and

±10 V (AD5516-3). Access to the feedback resistor in each

and requires a stable 3 V reference on REF_IN.

PRODUCT HIGHLIGHTS

1. Sixteen 12-bit DACs in one package, guaranteed monotonic.

2. Available in a 74-lead CSPBGA package with a body size of

12 mm

12 mm.

5,969,657.