AD5557CRU-REEL7 Analog Devices Inc, AD5557CRU-REEL7 Datasheet

IC,D/A CONVERTER,DUAL,14-BIT,TSSOP,38PIN

AD5557CRU-REEL7

Manufacturer Part Number
AD5557CRU-REEL7
Description
IC,D/A CONVERTER,DUAL,14-BIT,TSSOP,38PIN
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD5557CRU-REEL7

Design Resources
Precision, Unipolar, Inverting Conversion Using AD5547/57 DAC (CN0026) Precision, Unipolar, Noninverting Configuration for the AD5547/57 DAC (CN0027) Precision, Bipolar, Configuration for AD5547/AD5557 DAC (CN0028)
Settling Time
500ns
Number Of Bits
14
Data Interface
Parallel
Number Of Converters
2
Voltage Supply Source
Single Supply
Power Dissipation (max)
55µW
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
38-TSSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FEATURES
Dual channel
16-bit resolution: AD5547
14-bit resolution: AD5557
2- or 4-quadrant, 6.8 MHz BW multiplying DAC
±1 LSB DNL
±1 LSB INL
Operating supply voltage: 2.7 V to 5.5 V
Low noise: 12 nV/√Hz
Low power: I
0.5 μs settling time
Built-in R
Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V,
2 mA full-scale current ± 20%, with V
Extended automotive operating temperature range
Selectable zero-scale/midscale power-on presets
Compact 38-lead TSSOP package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Digital waveform generation
Rev. B
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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.
or ±10 V outputs
−40°C to +125°C
FB
facilitates current-to-voltage conversion
DD
= 10 μA max
Figure 2. 16-/14-Bit 4-Quadrant Multiplying DAC with Minimum of External Components (Only One Channel Is Shown)
16/14 DATA
A0, A1
LDAC
VREF
MSB
WR
RS
WR
REF
AD5547/AD5557
LDAC
R
= 10 V
R1
1A
POWER-ON
RS
R
RESET
COMA
U1
Dual-Current Output, Parallel Input, 16-/14-Bit
C1
MSB A0, A1
R2
–VREF
V
2
REFA
Multiplying DACs with 4-Quadrant Resistors
(ONE CHANNEL SHOWN ONLY)
16-/14-BIT
DAC A
R
OFSA
ROFS
R
RFB
FBA
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
D0 TO D15
D0 TO D13
GENERAL DESCRIPTION
The AD5547/AD5557 are dual precision, 16-/14-bit, multiplying,
low power, current-output, parallel input, digital-to-analog
converters (DACs). They are designed to operate from single
+5 V supply with ±10 V multiplying references for 4-quadrant
outputs with 6.8 MHz bandwidth.
The built-in, 4-quadrant resistors facilitate resistance matching
and temperature tracking, which minimize the number of
components needed for multiquadrant applications. In addition,
the feedback resistor (R
an external buffer.
The AD5547/AD5557 are available in a compact, 38-lead
TSSOP package and operate at the extended automotive
temperature range of −40°C to +125°C.
AGNDA
(AD5547)
(AD5557)
A0, A1
IOUTA
V
WR
DD
C2
ADDR
DECODE
D0..D15
D0..D13
DAC B
DAC A
DGND
OR
FUNCTIONAL BLOCK DIAGRAM
©2004–2010 Analog Devices, Inc. All rights reserved.
U2
RS
REGISTER
REGISTER
POWER
RESET
INPUT
INPUT
ON
FB
R
MSB
1A
) simplifies the I-to-V conversion with
–VREF TO +VREF
RS
RS
Figure 1.
AD5547/AD5557
VOUTA
R
LDAC
COMA
AD5547/AD5557
REGISTER
REGISTER
DAC A
DAC B
V
REFA
R
1B
RS
RS
R
OFSA
R
COMB
www.analog.com
DAC A
DAC B
V
REFB
R
I
AGNDA
AGNDB
I
R
R
OUTA
OUTB
FBA
FBB
OFSB

Related parts for AD5557CRU-REEL7

AD5557CRU-REEL7 Summary of contents

Page 1

FEATURES Dual channel 16-bit resolution: AD5547 14-bit resolution: AD5557 2- or 4-quadrant, 6.8 MHz BW multiplying DAC ±1 LSB DNL ±1 LSB INL Operating supply voltage: 2 5.5 V Low noise: 12 nV/√Hz Low power ...

Page 2

AD5547/AD5557 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 3 Absolute Maximum Ratings ............................................................ 5 ESD Caution .................................................................................. 5 Pin ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS virtual GND, GND = OUT Table 1. Parameter 1 STATIC PERFORMANCE Resolution Relative Accuracy Differential Nonlinearity Output Leakage Current Full-Scale Gain Error Bipolar Mode ...

Page 4

AD5547/AD5557 Parameter SUPPLY CHARACTERISTICS Power Supply Range Positive Supply Current Power Dissipation Power Supply Sensitivity 4 AC CHARACTERISTICS Output Voltage Settling Time Reference Multiplying BW DAC Glitch Impulse Multiplying Feedthrough Error Digital Feedthrough Total Harmonic Distortion Output Noise Density Analog ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 2. Parameter V to GND R1 and VREF to GND FB OFS COM Logic Inputs to GND V GND OUT Input Current to Any Pin except Supplies ...

Page 6

AD5547/AD5557 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 3. AD5547 Pin Function Descriptions Pin No. Mnemonic Function D15 Digital Input Data Bits D0 to D15. Signal level must be ≤ ...

Page 7

Pin No. Mnemonic Function 19 A0 Address Pin 0. Signal level must be ≤ Address Pin 1. Signal level must be ≤V 21 LDAC Digital Input Load DAC Control. Signal level must be ≤V 22 MSB Power-On Reset ...

Page 8

AD5547/AD5557 Table 4. AD5557 Pin Function Descriptions Pin No. Mnemonic Function Connection. Do not connect anything other than the dummy pads to these pins Bipolar Offset Resistor A. Accepts up to ± ...

Page 9

Pin No. Mnemonic Function 23 RS Active low resets both input and DAC registers. Resets to zero-scale if MSB = 0 and resets to midscale if MSB = 1. Signal level must be ≤ 28, D13 to D0 ...

Page 10

AD5547/AD5557 TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 8192 16,384 24,576 32,768 40,960 49,152 57,344 65,536 CODE (Decimal) Figure 6. AD5547 Integral Nonlinearity Error 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 ...

Page 11

CLOCK FREQUENCY (Hz) Figure 12. AD5547 Supply Current vs. Clock Frequency REF 100 ...

Page 12

AD5547/AD5557 CIRCUIT OPERATION DAC SECTION The AD5547/AD5557 are 16-/14-bit, multiplying, current- output, parallel input DACs. The devices operate from a single 2 5.5 V supply and provide both unipolar ( – ...

Page 13

DIGITAL SECTION The AD5547/AD5557 have 16-/14-bit parallel inputs. The devices are double buffered with 16-/14-bit registers. The double buffered feature allows the simultaneous update of several AD5547s/ AD5557s. For the AD5547, the input register is loaded directly from a 16-bit ...

Page 14

AD5547/AD5557 APPLICATIONS INFORMATION UNIPOLAR MODE 2-Quadrant Multiplying Mode, V OUT The AD5547/AD5557 DAC architecture uses a current-steering R-2R ladder design that requires an external reference and op amp to convert the unipolar mode of the output voltage ...

Page 15

Multiplying Mode, V OUT The AD5547/AD5557 are designed to operate with either positive or negative reference voltages result, a positive output can be achieved with an additional op amp, (see Figure 21); the output becomes V = ...

Page 16

AD5547/AD5557 BIPOLAR MODE 4-Quadrant Multiplying Mode, V OUT The AD5547/AD5557 contain on-chip all the 4-quadrant resistors necessary for precision bipolar multiplying operation. Such a feature minimizes the number of exponent components to only a voltage reference, dual op amp, and ...

Page 17

AC Reference Signal Attenuator Besides handling the digital waveform decoded from the parallel input data, the AD5547/AD5557 can also handle low frequency ac reference signals for signal attenuation, channel equalization, and waveform generation applications. The maximum signal range can be ...

Page 18

AD5547/AD5557 REFERENCE SELECTION When selecting a reference for use with the AD55xx series of current output DACs, pay attention to the output voltage, temperature coefficient specification of the reference. Choosing a precision reference with a low output temperature coefficient minimizes ...

Page 19

Table 12. Suitable Analog Devices High Speed Op Amps Part No. Supply Voltage ( ACL (MHz) AD8065 145 AD8066 145 AD8021 490 AD8038 350 ADA4899 5 ...

Page 20

... COPLANARITY ORDERING GUIDE 1 Model Resolution (Bits) AD5547BRU 16 AD5547BRU-REEL7 16 AD5547BRUZ 16 AD5547CRUZ 16 AD5547CRUZ-REEL7 16 AD5557CRU 14 AD5557CRU-REEL7 14 AD5557CRUZ RoHS Compliant Part. ©2004–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 9.80 9.70 9. 4.50 4.40 4.30 1 ...

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