2.7 V to 5.5 V, Serial-Input,
Voltage-Output, 16-Bit DACs
Data Sheet
Rev. F
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FEATURES
Full 16-bit performance
3 V and 5 V single-supply operation
Low 0.625 mW power dissipation
1 s settling time
Unbuffered voltage output capable of driving 60 k
loads directly
SPI-/QSPI-/MICROWIRE-compatible interface standards
Power-on reset clears DAC output to 0 V (unipolar mode)
5 kV HBM ESD classification
Low glitch: 1.1 nV-sec
APPLICATIONS
Digital gain and offset adjustment
Automatic test equipment
Data acquisition systems
Industrial process control
GENERAL DESCRIPTION
The AD5541/AD5542 are single, 16-bit, serial input, voltage
output digital-to-analog converters (DACs) that operate from
a single 2.7 V to 5.5 V supply. The DAC output range extends
from 0 V to VREF.
The DAC output range extends from 0 V to VREF and is guaranteed
monotonic, providing 1 LSB INL accuracy at 16 bits without
adjustment over the full specified temperature range of 40°C to
+85°C. Offering unbuffered outputs, the AD5541/AD5542
achieve a 1 s settling time with low power consumption and low
offset errors. Providing a low noise performance of 11.8 nV/√Hz
and low glitch, the AD5541/AD5542 is suitable for deployment
across multiple end systems.
The AD5542 can be operated in bipolar mode, which generates
a ±VREF output swing. The AD5542 also includes Kelvin sense
connections for the reference and analog ground pins to reduce
layout sensitivity.
The AD5541/AD5542 utilize a versatile 3-wire interface that is
compatible with SPI, QSPI, MICROWIRE and DSP interface
standards. The AD5541/AD5542 are available in 8-lead and
14-lead SOIC packages.
FUNCTIONAL BLOCK DIAGRAMS
6
1
2
8
7
16-BIT DAC
16-BIT DAC LATCH
SERIAL INPUT REGISITER
VDD
DGND
DIN
REF
CS
SCLK
3
4
5
VOUT
AGND
AD5541
CONTROL
LOGIC
07557-
001
Figure 1. AD5541
11
2
3
14
12
16-BIT DAC
16-BIT DAC LATCH
SERIAL INPUT REGISITER
VDD
DGND
LDAC
REFF
CS
DIN
6
REFS 5
7
10
VOUT
13
INV
1
RFB
AGNDF
4
AGNDS
AD5542
CONTROL
LOGIC
07557-
002
8
SCLK
RFB
RINV
Figure 2. AD5542
Table 1.
Part No.
Description
Single, 16-bit unbuffered nanoDAC,
±1 LSB INL, LFCSP
Quad 12-/14-/16-bit nanoDAC,
±1 LSB INL, TSSOP
Single, 16-bit nanoDAC, ±1 LSB INL,
SOT-23
Single, 16-bit nanoDAC, ±1 LSB INL,
SOT-23
PRODUCT HIGHLIGHTS
1. Single-Supply Operation. The AD5541 and AD5542 are fully
specified and guaranteed for a single 2.7 V to 5.5 V supply.
2. Low Power Consumption. These parts consume typically
0.625 mW with a 5 V supply and 0.375 mV at 3 V.
3. 3-Wire Serial Interface.
4. Unbuffered Output Capable of Driving 60 k Loads. This
reduces power consumption because there is no internal
buffer to drive.
5. Power-On Reset Circuitry.