Multiple Range, 16-/12-Bit,
Bipolar/Unipolar, Voltage Output DACs
8 software-programmable output ranges: 0 V to 5 V, 0 V to 10 V,
0 V to 16 V, 0 V to 20 V, ±3 V, ±5 V, ±10 V, −2.5 V to +7.5 V;
Total unadjusted error (TUE): 0.1% FSR maximum
16-bit resolution: ±2 LSB maximum INL
Guaranteed monotonicity: ±1 LSB maximum
Single channel, 16-/12-bit DACs
Settling time: 7.5 µs typical
Integrated reference buffers
Low noise: 35 nV/√Hz
Low glitch: 1 nV-sec
1.8 V logic compatibility
Asynchronous updating via LDAC
Asynchronous RESET to zero scale/midscale
DSP/microcontroller-compatible serial interface
Robust 4 kV HBM ESD rating
Available in 16-lead TSSOP and 16-lead LFCSP
Operating temperature range: −40°C to +125°C
Instrumentation, data acquisition
Open-/closed-loop servo control, process control
Programmable logic controllers
The AD5761/AD5721 are single channel, 16-/12-bit serial input,
voltage output, digital-to-analog converters (DACs). They operate
from single supply voltages from 4.75 V to 30 V or dual supply
voltages from −16.5 V to 0 V VSS and 4.75 V to 16.5 V VDD. The
integrated output amplifier and reference buffer provide a very
easy to use, universal solution.
The devices offer guaranteed monotonicity, integral nonlinearity
(INL) of ±2 LSB maximum, 35 nV/√Hz noise, and 7.5 µs settling
time on selected ranges.
The AD5761/AD5721 use a serial interface that operates at
clock rates of up to 50 MHz and are compatible with DSP and
microcontroller interface standards. Double buffering allows
the asynchronous updating of the DAC output. The input
coding is user-selectable twos complement or straight binary.
The asynchronous reset function resets all registers to their
default state. The output range is user selectable, via the
RA[2:0] bits in the control register.
The devices available in the 16-lead TSSOP and in the 16-lead
LFCSP offer guaranteed specifications over the −40°C to +125°C
industrial temperature range.
Table 1. Pin-Compatible Devices
AD5761R/AD5721R AD5761/AD5721 with internal reference
FUNCTIONAL BLOCK DIAGRAM
DAC 12/16 12-BIT/
1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.
0V TO 5V
0V TO 10V
0V TO 16V
0V TO 20V
−2.5V TO +7.5V
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