AD5439 Analog Devices, AD5439 Datasheet

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AD5439

Manufacturer Part Number
AD5439
Description
(AD5424 - AD5547) High Bandwidth Multiplying DACs
Manufacturer
Analog Devices
Datasheet

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Manufacturer
Quantity
Price
Part Number:
AD5439YRUZ
Manufacturer:
TI
Quantity:
120
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: 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 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.
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.
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 Shown)
16/14 DATA
A0, A1
LDAC
MSB
VREF
WR
RS
WR
REF
AD5547/AD5557
LDAC
R
R1
= 10 V
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
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 (R
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
(AD5547)
(AD5557)
AGNDA
D0–D15
D0–D13
A0, A1
IOUTA
V
WR
DD
C2
D0..D15
D0..D13
ADDR
DECODE
DAC A
DAC B
DGND
OR
FUNCTIONAL BLOCK DIAGRAM
U2
RS
© 2004 Analog Devices, Inc. All rights reserved.
REGISTER
REGISTER
POWER
RESET
INPUT
INPUT
ON
FB
R
MSB
1A
) simplifies the I-V conversion with an
–VREF TO +VREF
RS
RS
Figure 1.
VOUTA
R
LDAC
COMA
AD5547/AD5557
AD5547/AD5557
REGISTER
REGISTER
DAC A
DAC B
V
REFA
R
1B
RS
RS
R
OFSA
R
www.analog.com
COMB
DAC A
DAC B
V
REFB
R
R
I
AGNDA
AGNDB
I
R
OUTA
OUTB
FBA
FBB
OFSB

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AD5439 Summary of contents

Page 1

... 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 ...

Page 2

AD5547/AD5557 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configurations and Function Descriptions ........................... 6 Typical Performance Characteristics ............................................. 9 Circuit Operation ........................................................................... 12 D/A Converter Section .............................................................. 12 Digital Section............................................................................. 13 REVISION HISTORY Revision ...

Page 3

SPECIFICATIONS Virtual GND, GND = OUT Table 1. Electrical Characteristics Parameter Symbol 1 STATIC PERFORMANCE Resolution N Relative Accuracy INL Differential Nonlinearity DNL Output Leakage Current I ...

Page 4

AD5547/AD5557 Parameter Symbol 4 AC CHARACTERISTICS Output Voltage Settling Time t Reference Multiplying BW BW DAC Glitch Impulse Q Multiplying Feedthrough Error V Digital Feedthrough Q Total Harmonic Distortion THD Output Noise Density e Analog Crosstalk C 1 All static ...

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 OFSA R 4 FBA COMA V 7 REFA I 8 OUTA AD5547 AGNDA 9 DGND TOP VIEW 10 (Not to Scale) AGNDA 11 ...

Page 7

Pin No. Mnemonic Function 18 WR Write Control Digital Input In, Active Low. WR transfers shift register data to the DAC register on the rising edge. Signal level must be ≤ Address Pin 0. Signal level must ...

Page 8

AD5547/AD5557 Table 5. Address Decoder Pins Table 6. Control Inputs RS WR LDAC Register Operation Reset the output to 0 with MSB pin = 0; reset the ...

Page 9

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 16384 24576 32768 40960 49152 57344 65536 CODE (Decimal) Figure 6. AD5547 Integral Nonlinearity Error 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 ...

Page 10

AD5547/AD5557 3.0 2.5 2.0 1.5 1.0 0xFFFF 0x0000 0.5 0 10k 100k 1M CLOCK FREQUENCY (Hz) Figure 12. AD5547 Supply Current vs. Clock Frequency 100 1k 10k FREQUENCY (Hz) ...

Page 11

REF LEVEL /DIV 0.000dB 12.000dB 0 ALL BITS OFF D14 ON –12 D14 AND D13 ON D14 AND D12 ON –24 D14 AND D11 ON D14 AND D10 ON –36 D14 AND D9 ON D14 AND D8 ON –48 D14 ...

Page 12

AD5547/AD5557 CIRCUIT OPERATION D/A CONVERTER 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 dou- ble-buffered feature allows the simultaneous update of several AD5547/AD5557s. For the AD5547, the input register is loaded directly from a 16-bit controller bus ...

Page 14

AD5547/AD5557 APPLICATIONS 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 output voltage –V × ...

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 23); the output becomes V = ...

Page 16

AD5547/AD5557 +15V 1µF 0.1µF VIN TRIM VOUT GND ADR01 4 +5V C3 0.1µF 16/14 DATA WR LDAC RS MSB A0, A1 BIPOLAR MODE 4-Quadrant Multiplying Mode, V OUT The AD5547/AD5557 contain on-chip all the 4-quadrant resistors ...

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

... SPI AD5424 8 1 Parallel AD5429 8 2 SPI AD5428 8 2 Parallel AD5432 10 1 SPI AD5451 10 1 SPI AD5433 10 1 Parallel AD5439 10 2 SPI AD5440 10 2 Parallel AD5443 12 1 SPI AD5452 12 1 SPI AD5445 12 1 Parallel AD5444 12 1 SPI AD5449 12 2 SPI ...

Page 19

OUTLINE DIMENSIONS 0.15 0.05 COPLANARITY ORDERING GUIDE Resolution DNL Model (Bits) (LSB) AD5547BRU 16 ±1 AD5547BRU-REEL7 16 ±1 AD5557CRU 14 ±1 AD5557CRU-REEL7 14 ±1 9.80 9.70 9. 4.50 4.40 4. PIN 1 1.20 MAX 0.50 0.27 ...

Page 20

... AD5547/AD5557 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04452–0–4/04(0) Rev Page ...

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