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2.7 V to 5.5 V, Serial-Input,
Voltage-Output, 12-/16-Bit DAC
Rev. A
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FEATURES
12-/16-bit resolution
1 LSB INL
11.8 nV/√Hz noise spectral density
1
s settling time
1.1 nV-sec glitch energy
0.05 ppm/°C temperature drift
5 kV HBM ESD classification
0.375 mW power consumption at 3 V
2.7 V to 5.5 V single-supply operation
Hardware CLR and LDAC functions
50 MHz SPI-/QSPI-/MICROWIRE-/DSP-compatible interface
Power-on reset clears DAC output to midscale
Available in 3 mm × 3 mm, 10-/16-lead LFCSP and
16-lead TSSOP
APPLICATIONS
Automatic test equipment
Precision source-measure instruments
Data acquisition systems
Medical and aerospace instrumentation
Communication equipment
GENERAL DESCRIPTION
The AD5512A/AD5542A are single, 12-/16-bit, serial input,
unbuffered voltage output digital-to-analog converters (DAC)
that operate from a single 2.7 V to 5.5 V supply. 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 (AD5542A) or 40°C to +125°C (AD5512A).
Offering unbuffered outputs, the AD5512A/AD5542A achieve
a 1 μs settling time with low offset errors ideal for high speed
open loop control.
The AD5512A/AD5542A incorporate a bipolar mode of operation
that generates a ±VREF output swing. The AD5512A/AD5542A
also include Kelvin sense connections for the reference and
analog ground pins to reduce layout sensitivity.
The AD5512A/AD5542A are available in a 16-lead LFCSP with
the AD5542A also available in a 10-lead LFCSP and a 16-lead
TSSOP. The AD5512A/AD5542A use a versatile 3-wire interface
that is compatible with 50 MHz SPI, QSPI, MICROWIRE, and
DSP interface standards.
FUNCTIONAL BLOCK DIAGRAM
16-BIT DAC
16-BIT DAC LATCH
VDD
DGND
LDAC
REFF
VLOGIC
CS
DIN
CLR
VOUT
INV
RFB
AD5512A/
AD5542A
SCLK
RFB
RINV
09
19
9-
0
01
REFS
AGNDF
AGNDS
CONTROL
LOGIC
SERIAL INPUT REGISTER
Figure 1. 16-Lead TSSOP and 16-Lead LFCSP
5
6
10
9
16-BIT DAC
16-BIT DAC LATCH
SERIAL INPUT REGISITER
GND
VDD
CLR
REF
CS
DIN
1
2
4
VOUT
7
INV
8
RFB
AD5542A-1
CONTROL
LOGIC
3
SCLK
RFB
RINV
09
19
9-
00
2
Figure 2. 10-Lead LFCSP
Table 1. Related Devices
Part No.
Description
2.7 V to 5.5 V 14-/16-bit buffed output DACs
2.7 V to 5.5 V 16-bit voltage output DACs
18-/20-bit voltage output DACs
16-bit ±12 V/±15 V bipolar output DAC
4.5 V to 5.5 V, 12-/16-bit quad channel DAC
16-bit, bipolar, voltage output DAC
PRODUCT HIGHLIGHTS
1.
16-bit performance without adjustment.
2.
2.7 V to 5.5 V single supply operation.
3.
Low 11.8 nV/√Hz noise spectral density.
4.
Low 0.05 ppm/°C temperature drift.
5.
3 mm × 3 mm LFCSP and TSSOP packaging.