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AD5546 Datasheet(PDF) 1 Page - Analog Devices

Part # AD5546
Description  Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5546 Datasheet(HTML) 1 Page - Analog Devices

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Current Output, Parallel Input, 16-/14-Bit
Multiplying DACs with 4-Quadrant Resistors
AD5546/AD5556
Rev. 0
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
16-bit resolution
14-bit resolution
2- or 4-quadrant multiplying DAC
±1 LSB DNL
±1 LSB INL or ±2 LSB INL
Operating supply voltage: 2.7 V to 5.5 V
Low noise: 12 nV/
√Hz
Low power: IDD = 10 µA
0.5 µs settling time
Built-in RFB facilitates current-to-voltage conversion
Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V,
or ±10 V outputs
2 mA full-scale current ±20%, with VREF = 10 V
Automotive operating temperature: –40°C to +125°C
Compact TSSOP-28 package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Digital waveform generation
FUNCTIONAL BLOCK DIAGRAM
DAC
AD5546/
AD5556
WR
LDAC
MSB
RS
DB0–DB15
CONTROL
LOGIC
DAC
REGISTER
POR
16/14
VDD
R1
R2
ROFS
RFB
R1
RCOM
REF ROFS
RFB
IOUT
GND
Figure 1. AD5546/AD5556 Simplified Block Diagram
GENERAL DESCRIPTION
The AD5546/AD5556 are precision 16-/14-bit, multiplying, low
power, current output, parallel input D/A converters. They
operate from a single 2.7 V to 5.5 V supply with ±10 V multi-
plying references for 4-quadrant outputs. Built-in 4-quadrant
resistors facilitate the resistance matching and temperature
tracking that minimize the number of components needed for
multiquadrant applications. The feedback resistor (RFB) simpli-
fies the I-V conversion with an external buffer. The AD5546/
AD5556 are packaged in compact TSSOP-28 packages with
operating temperatures from –40°C to +125°C.
16/14-BIT
2
5V
6
5
4
GND
VIN
TRIM
U3
ADR03
VOUT
5V
VDD
R1
ROFS
ROF
–VREF TO +VREF
VOUT
RFB
RFB
C2
GND
U1
AD5546/AD5556
IOUT
R2
U2A
OP2177
+
C1
–VREF
+VREF
RCOM
R1
16/14 DATA
REF
U2B
OP2177
+
WR
WR
LDAC
LDAC
RS
RS
MSB
MSB
Figure 2. 16-/14-Bit, 4-Quadrant Multiplying DAC with a Minimum of External Components


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