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2.7 V to 5.5 V, Serial-Input,
Voltage-Output, 12-/16-Bit DAC
AD5512A/AD5542A
FEATURES
12-/16-bit resolution
1 LSB INL
11.8 nV/√Hz noise spectral density
1
µs
settling time
1.1 nV-sec glitch energy
0.05 ppm/°C temperature drift
5 kV HBM ESD classification
FUNCTIONAL BLOCK DIAGRAM
V
DD
R
FB
REFF
R
INV
16-BIT DAC
REFS
V
LOGIC
CS
LDAC
SCLK
DIN
SERIAL INPUT REGISTER
CONTROL
LOGIC
R
FB
INV
V
OUT
AGNDF
16-BIT DAC LATCH
AGNDS
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
CLR
DGND
Figure 1. 16-Lead TSSOP and 16-Lead LFCSP
GND
10
APPLICATIONS
Automatic test equipment
Precision source-measure instruments
Data acquisition systems
Medical and aerospace instrumentation
Communication equipment
AD5542A-1
R
INV
REF
1
8
R
FB
7
R
FB
INV
V
OUT
16-BIT DAC
6
CS
2
CLR
5
SCLK
3
DIN
4
CONTROL
LOGIC
16-BIT DAC LATCH
SERIAL INPUT REGISITER
9
09199-002
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 V
REF
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 ±V
REF
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.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
V
DD
Figure 2. 10-Lead LFCSP
Table 1. Related Devices
Part No.
AD5040/AD5060
AD5541/AD5542
AD5781/AD5791
AD5570
AD5024/AD5064
AD5764
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.
2.
3.
4.
5.
16-bit performance without adjustment.
2.7 V to 5.5 V single supply operation.
Low 11.8 nV/√Hz noise spectral density.
Low 0.05 ppm/°C temperature drift.
3 mm × 3 mm LFCSP and TSSOP packaging.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2010-2011 Analog Devices, Inc. All rights reserved.
09199-001
AD5512A/
AD5542A
AD5512A/AD5542A
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
AD5512A ....................................................................................... 3
AD5542A ....................................................................................... 4
AC Characteristics ........................................................................ 5
Timing Characteristics ................................................................ 6
Absolute Maximum Ratings ............................................................ 7
ESD Caution .................................................................................. 7
Pin Configuration and Function Descriptions ............................. 8
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 14
Theory of Operation ...................................................................... 15
Digital-to-Analog Section ......................................................... 15
Serial Interface ............................................................................ 15
Unipolar Output Operation ...................................................... 15
Bipolar Output Operation ......................................................... 16
Output Amplifier Selection ....................................................... 17
Force Sense Amplifier Selection ............................................... 17
Reference and Ground ............................................................... 17
Power-On Reset .......................................................................... 17
Power Supply and Reference Bypassing .................................. 17
Applications Information .............................................................. 18
Microprocessor Interfacing ....................................................... 18
AD5512A/AD5542A to ADSP-BF531 Interface .................... 18
AD5512A/AD5542A to SPORT Interface .............................. 18
AD5512A/AD5542A to 68HC11/68L11 Interface .................... 18
AD5512A/AD5542A to ADSP-2101 Interface ....................... 18
AD5512A/AD5542A to MICROWIRE Interface .................. 18
Layout Guidelines....................................................................... 19
Galvanically Isolated Interface ................................................. 19
Decoding Multiple DACs .......................................................... 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 21
REVISION HISTORY
5/11—Rev. 0 to Rev. A
Changes to Table 3, Power Dissipation Value and Endnote 1 .... 4
Changes to Table 5 ............................................................................ 6
Changes to Ordering Guide .......................................................... 21
10/10—Revision 0: Initial Version
Rev. A | Page 2 of 24
AD5512A/AD5542A
SPECIFICATIONS
AD5512A
V
DD
= 2.7 V to 5.5 V, V
LOGIC
= 2.7 V to 5.5 V, V
REF
= 2.5 V, AGND = DGND = 0 V,
−40°C < T
A
< +125°C, unless otherwise noted.
Table 2.
Parameter
1
STATIC PERFORMANCE
Resolution
Relative Accuracy (INL)
Differential Nonlinearity (DNL)
Gain Error
Gain Error Temperature Coefficient
Unipolar Zero-Code Error
Unipolar Zero-Code Temperature Coefficient
Bipolar Resistor Matching
Bipolar Zero Offset Error
Bipolar Zero Temperature Coefficient
Bipolar Zero-Code Offset Error
Bipolar Gain Error
Bipolar Gain Temperature Coefficient
OUTPUT CHARACTERISTICS
Output Voltage Range
DAC Output Impedance
Power Supply Rejection Ratio
Output Noise Spectral Density
Output Noise
DAC REFERENCE INPUT
2
Reference Input Range
Reference Input Resistance
3
Reference Input Capacitance
LOGIC INPUTS
Input Current
Input Low Voltage, V
INL
Input High Voltage, V
INH
Input Capacitance
2
Hysteresis Voltage
2
POWER REQUIREMENTS
V
DD
I
DD
V
LOGIC
I
LOGIC
Power Dissipation
1
2
Min
12
Typ
Max
Unit
Bits
LSB
LSB
LSB
ppm/°C
LSB
ppm/°C
Ω/Ω
%
LSB
ppm/°C
LSB
LSB
ppm/°C
V
V
kΩ
LSB
nV/√Hz
μV p-p
Test Condition
±0.5
±0.5
+0.5
±0.1
0.03
±0.05
1
±0.02
±0.07
±0.2
±0.02
±0.07
±0.1
0
−V
REF
6.25
±1.0
±1.0
±2
±0.5
Guaranteed monotonic
±0.08
±2
±0.5
±2
R
FB
/R
INV
, typically R
FB
= R
INV
= 28 kΩ
Ratio error
V
REF
− 1 LSB
+V
REF
− 1 LSB
±1.0
11.8
0.134
Unipolar operation
Bipolar operation
Tolerance typically 20%
ΔV
DD
± 10%
DAC code = 0x840 (AD5512A) or
0x8400 (AD5542A), frequency = 1 kHz,
unipolar mode
0.1 Hz to 10 Hz, unipolar mode
2.0
9
7.5
26
26
V
DD
V
kΩ
kΩ
pF
pF
μA
V
V
pF
V
V
µA
V
µA
mW
Unipolar operation
Bipolar operation
Code 0x0000
Code 0x3FFF
±1
0.8
2.4
10
0.15
2.7
125
1.8
15
1.5
5.5
150
5.5
24
6.05
V
DD
= 2.7 V to 5.5 V
V
DD
= 2.7 V to 5.5 V
All digital inputs at 0 V, V
LOGIC
, or V
DD
V
IH
= V
LOGIC
or V
DD
and V
IL
= GND
All digital inputs at 0 V, V
LOGIC
, or V
DD
Temperatures are as follows: A version −40°C to +125°C.
Guaranteed by design, not subject to production test.
3
Reference input resistance is code-dependent, minimum at 0x855.
Rev. A | Page 3 of 24
AD5512A/AD5542A
AD5542A
V
DD
= 2.7 V to 5.5 V, V
LOGIC
= 2.7 V to 5.5 V, V
REF
= 2.5 V, AGND = DGND = 0 V,
−40°C < T
A
< +85°C, unless otherwise noted.
Table 3.
Parameter
1
STATIC PERFORMANCE
Resolution
Relative Accuracy (INL)
Differential Nonlinearity (DNL)
Gain Error
Gain Error Temperature Coefficient
Unipolar Zero-Code Error
Unipolar Zero-Code Temperature Coefficient
Bipolar Resistor Matching
Bipolar Zero Offset Error
Bipolar Zero Temperature Coefficient
Bipolar Zero-Code Offset Error
Bipolar Gain Error
Bipolar Gain Temperature Coefficient
OUTPUT CHARACTERISTICS
Output Voltage Range
DAC Output Impedance
Power Supply Rejection Ratio
Min
16
±0.5
±0.5
+0.5
±0.1
0.3
±0.05
1.000
±0.0015
±1
±0.2
±1
±1
±0.1
0
−V
REF
6.25
±1.0
V
REF
− 1 LSB
+V
REF
− 1 LSB
±1.0
±2.0
±1.0
±2
±3
±0.7
±1.5
Typ
Max
Unit
Bits
LSB
LSB
LSB
LSB
ppm/°C
LSB
LSB
ppm/°C
Ω/Ω
%
LSB
LSB
ppm/°C
LSB
LSB
LSB
LSB
ppm/°C
V
V
kΩ
LSB
Test Condition
B grade
A grade
Guaranteed monotonic
T
A
= 25°C
T
A
= 25°C
±0.0076
±5
±6
±5
±6
±5
±6
R
FB
/R
INV
, typically R
FB
= R
INV
= 28 kΩ
Ratio error
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
Unipolar operation
Bipolar operation
Tolerance typically 20%
ΔV
DD
± 10%
Output Noise Spectral Density
Output Noise
DAC REFERENCE INPUT
Reference Input Range
Reference Input Resistance
3
Reference Input Capacitance
LOGIC INPUTS
Input Current
Input Low Voltage, V
INL
Input High Voltage, V
INH
Input Capacitance
2
Hysteresis Voltage
2
POWER REQUIREMENTS
V
DD
I
DD
V
LOGIC
I
LOGIC
Power Dissipation
1
2
11.8
0.134
nV/√Hz
μV p-p
V
DD
V
kΩ
kΩ
pF
pF
μA
V
V
pF
V
V
µA
V
µA
mW
DAC code = 0x840 (AD5512A) or
0x8400 (AD5542A), frequency = 1 kHz,
unipolar mode
0.1 Hz to 10 Hz
2
2.0
9
7.5
26
26
Unipolar operation
Bipolar operation
Code 0x0000
Code 0xFFFF
±1
0.8
2.4
10
0.15
2.7
125
1.8
15
0.625
5.5
150
5.5
24
0.825
V
DD
= 2.7 V to 5.5 V
V
DD
= 2.7 V to 5.5 V
All digital inputs at 0 V, V
LOGIC
, or V
DD
V
IH
= V
LOGIC
or V
DD
and V
IL
= GND
All digital inputs at 0 V, V
LOGIC
, or V
DD
For 2.7 V ≤ V
LOGIC
≤ 5.5 V, temperatures are as follows: A, B versions −40°C to +85°C.
Guaranteed by design, not subject to production test.
3
Reference input resistance is code-dependent, minimum at 0x8555.
Rev. A | Page 4 of 24
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