dac16fs Analog Devices, Inc., dac16fs Datasheet

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dac16fs

Manufacturer Part Number
dac16fs
Description
16-bit High Speed Current-output Dac
Manufacturer
Analog Devices, Inc.
Datasheet
a
REV. B
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
GENERAL DESCRIPTION
The DAC16 is a 16-bit high speed current-output digital-to-
analog converter with a settling time of 500 ns. A unique com-
bination of low distortion, high signal-to-noise ratio, and high
speed make the DAC16 ideally suited to performing waveform
synthesis and modulation in communications, instrumentation,
and ATE systems. Input reference current is buffered, with full-
scale output current of 5 mA. The 16-bit parallel digital input
bus is TTL/CMOS compatible. Operating from +5 V and
–15 V supplies, the DAC16 consumes 190 mW (typ) and is
available in a 24-lead epoxy DIP, epoxy surface-mount small
outline (SOL), and in die form.
FEATURES
Guaranteed Monotonic Over Temperature Range
500 ns Settling Time
5 mA Full-Scale Output
TTL/CMOS Compatible
Low Power: 190 mW (typ)
Available in Die Form
APPLICATIONS
Communications
ATE
Data Acquisition Systems
High Resolution Displays
1 LSB Differential Linearity (max)
2 LSB Integral Linearity (max)
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Figure 1. DAC16 Settling Time Accuracy vs. Percent of
Full Scale
0.001
0.01
0.1
REF GND
0
AGND
DGND
I
FUNCTIONAL BLOCK DIAGRAM
V
V
REF
CC
EE
100
World Wide Web Site: http://www.analog.com
I
T
FS
A
200
DB0 (LSB)
V
TURNING OFF
= 25 C
= 4mA
LOGIC
Current-Output DAC
BUFFER
SETTLING TIME – ns
300
16-Bit High Speed
= +5V
DAC
400
DB15 (MSB)
© Analog Devices, Inc., 1999
500
DAC16
V
TURNING ON
LOGIC
600
= 0V
DAC16
C
I
OUT
COMP
700
800

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dac16fs Summary of contents

Page 1

... Figure 1. DAC16 Settling Time Accuracy vs. Percent of Full Scale One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 DAC16 DAC16 C COMP I OUT DB15 (MSB LOGIC TURNING ON 500 600 700 800 © Analog Devices, Inc., 1999 ...

Page 2

DAC16–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Integral Linearity “G” INL Integral Linearity “G” INL Differential Linearity “G” DNL Differential Linearity “G” DNL Integral Linearity “F” INL Integral Linearity “F” INL Differential Linearity “F” DNL Differential Linearity “F” DNL Zero Scale Error ZSE ...

Page 3

... Substrate is V Polarity. EE Model Grade DNL (max) DAC16GS 1 DAC16FP 2 DAC16FS 2 DAC16GBC 1 REV. B CAUTION 1. Stresses above those listed under “Absolute Maximum Rat- ings” may cause permanent damage to the device. This is a stress rating only and functional operation at or above this specification is not implied. Exposure to the above maximum rating conditions for extended periods may affect device reliability ...

Page 4

DAC16 +5V 10k Figure 2. Burn-In Diagram OPERATION Novel DAC Architecture The DAC16 was designed ...

Page 5

Digital Input Considerations The threshold of the DAC16’s digital input circuitry is set at 1.4 V, independent of supply voltage. Hence, the digital inputs can interface with any type logic. Illustrated in Figure 5 is the equivalent ...

Page 6

DAC16–Typical Performance Characteristics LOGIC BITS = HIGH LOGIC BITS = LOW LOGIC BITS = HIGH LOGIC BITS = LOW CC 0 –40 – ...

Page 7

DAC16 recommended that common ground tie points be provided at each such device. If only one system ground can be connected directly to the DAC16 recommended that the analog common be used. ...

Page 8

DAC16 reference amplifier. Completely removing the compensation network would introduce large linearity errors, reference amplifier instability, wideband reference amplifier noise, and poor settling time. Because the DAC exhibits an internal current scaling factor of eight times (8 ), the reference ...

Page 9

R1 5k REF02 0 DIGITAL +5V +5V PIN 3, DAC16 10 F 0.1 F +15 V +5V REF REF02 0.1 F DIGITAL +5V +5V PIN 3, DAC16 10 F 0.1 F Bipolar Configuration For applications that ...

Page 10

DAC16 +15V R1 5k 0.1 F REF02 22 F DIGITAL +5V +5V PIN 3, DAC16 0 Figure 26. DAC16 Noise Measurement Test Circuit DAC16 Noise Performance The novel architecture employed in the DAC16 yields very low wideband ...

Page 11

MC10124 T/H –15V –5V 20k TO PIN 2 SD5000 0.39 F 1.6k A discrete drive circuit is used to achieve the best performance from the SD5000 quad DMOS switch. This switch-driving cell is composed of MPS571 RF NPN transistors ...

Page 12

DAC16 In using high speed op amps, the output capacitance of the DAC16 appears across the inputs of the op amp where it and the op amp’s input capacitance will set an additional pole in the op amp’s loop gain ...

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