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What is AD5447?

This electronic component, produced by the manufacturer "Analog Devices", performs the same function as "(AD5424 - AD5547) High Bandwidth Multiplying DACs".


AD5447 Datasheet PDF - Analog Devices

Part Number AD5447
Description (AD5424 - AD5547) High Bandwidth Multiplying DACs
Manufacturers Analog Devices 
Logo Analog Devices Logo 


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Dual Current Output, Parallel Input, 16-/14-Bit
Multiplying DACs with 4-Quadrant Resistors
AD5547/AD5557
FEATURES
Dual channel
16-bit resolution: AD5547
14-bit resolution: AD5557
2- or 4-quadrant, 4 MHz BW multiplying DAC
±1 LSB DNL
±1 LSB INL for AD5557, ±2 LSB INL for AD5547
Operating supply voltage: 2.7 V to 5.5 V
Low noise: 12 nV/√Hz
Low power: IDD = 10 µA max
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
Extended automotive operating temperature range:
–40°C to +125°C
Selectable zero-scale/midscale power-on presets
Compact TSSOP-38 package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Digital waveform generation
GENERAL DESCRIPTION
The AD5547/AD5557 are dual precision, 16-/14-bit,
multiplying, low power, current-output, parallel input, digital-
to-analog converters. They are designed to operate from single
+5 V supply with ±10 V multiplying references for 4-quadrant
outputs with up to 4 MHz bandwidth.
VREF
U1
–VREF
C1
FUNCTIONAL BLOCK DIAGRAM
R1A
RCOMA VREFA ROFSA
VDD
D0–D15
(AD5547)
D0–D13
(AD5557)
D0..D15
OR
D0..D13
WR
A0, A1
DAC A
DAC B
ADDR
DECODE
INPUT
REGISTER
RS
DAC A
REGISTER
RS
DAC A
INPUT
REGISTER
RS
DAC B
REGISTER
RS
DAC B
POWER
ON
RESET
AD5547/AD5557
RFBA
IOUTA
AGNDA
AGNDB
IOUTB
RFBB
ROFSB
DGND
RS MSB LDAC
Figure 1.
R1B
RCOMB VREFB
The built-in 4-quadrant resistors facilitate resistance matching
and temperature tracking, which minimize the numbers of
components needed for multiquadrant applications. In addition,
the feedback resistor (RFB) simplifies the I-V conversion with an
external buffer.
The AD5547/AD5557 are available in a compact TSSOP-38
package and operate at the extended automotive temperature
range of –40°C to +125°C.
16/14 DATA
R1A RCOMA VREFA
R1 R2
AD5547/AD5557
POWER-ON
RESET
ROFSA RFBA
ROFS
16-/14-BIT
DAC A
RFB
IOUTA
AGNDA
C2
U2
VOUTA
–VREF TO +VREF
WR
LDAC
RS
MSB
A0, A1
WR LDAC RS
MSB A0, A1
2 (ONE CHANNEL SHOWN ONLY)
Figure 2. 16/14-Bit 4-Quadrant Multiplying DAC with Minimum of External Components (Only One Channel Shown)
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.

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AD5447 equivalent
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Rating
VDD to GND
RFB, ROFS, R1, RCOM, and VREF to GND
Logic Inputs to GND
–0.3 V, +8 V
–18 V, 18 V
–0.3 V, +8 V
V(IOUT) to GND
Input Current to Any Pin except Supplies
Thermal Resistance (θJA)1
Maximum Junction Temperature (TJ MAX)
Operating Temperature Range
Storage Temperature Range
Lead Temperature
–0.3 V, VDD + 0.3 V
±50 mA
150°C
–40°C to +125°C
–65°C to +150°C
Vapor Phase, 60 s
215°C
Infrared, 15 s
220°C
AD5547/AD5557
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
1 Package power dissipation = (TJ MAX – TA)/θJA.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. 0 | Page 5 of 20


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