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What is DAC8420?

This electronic component, produced by the manufacturer "Analog Devices", performs the same function as "Quad 12-Bit Serial Voltage Output DAC".


DAC8420 Datasheet PDF - Analog Devices

Part Number DAC8420
Description Quad 12-Bit Serial Voltage Output DAC
Manufacturers Analog Devices 
Logo Analog Devices Logo 


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a
Quad 12-Bit Serial
Voltage Output DAC
FEATURES
Guaranteed Monotonic Over Temperature
Excellent Matching Between DACs
Unipolar or Bipolar Operation
Buffered Voltage Outputs
High Speed Serial Digital Interface
Reset to Zero- or Center-Scale
Wide Supply Range, +5 V-Only to ؎15 V
Low Power Consumption (35 mW max)
Available in 16-Pin DIP and SOL Packages
APPLICATIONS
Software Controlled Calibration
Servo Controls
Process Control and Automation
ATE
GENERAL DESCRIPTION
The DAC8420 is a quad, 12-bit voltage-output DAC with serial
digital interface, in a 16-pin package. Utilizing BiCMOS tech-
nology, this monolithic device features unusually high circuit
density and low power consumption. The simple, easy-to-use
serial digital input and fully buffered analog voltage outputs
require no external components to achieve specified performance.
The three-wire serial digital input is easily interfaced to micro-
processors running at 10 MHz rates, with minimal additional
circuitry. Each DAC is addressed individually by a 16-bit serial
word consisting of a 12-bit data word and an address header.
The user-programmable reset control CLR forces all four DAC
outputs to either zero or midscale, asynchronously overriding
the current DAC register values. The output voltage range, de-
termined by the inputs VREFHI and VREFLO, is set by the
user for positive or negative unipolar or bipolar signal swings
within the supplies allowing considerable design flexibility.
DAC8420
FUNCTIONAL BLOCK DIAGRAM
SDI 10
CS 12
CLK 11
NC 13
VREFHI
5
RREEGG DAC A
AA
12
VDD
1
7 VOUTA
SHIFT
REGISTER
REG DAC B
B
6 VOUTB
4
REG DAC C
C
3 VOUTC
LD 14
DECODE
2
REG DAC D
D
2 VOUTD
9
GND
16 15
CLSEL CLR
4
VREFLO
8
VSS
The DAC8420 is available in 16-pin epoxy DIP, cerdip, and
wide-body SOL (small-outline surface mount) packages. Opera-
tion is specified with supplies ranging from +5 V-only to ± 15 V,
with references of +2.5 V to ± 10 V respectively. Power dissipa-
tion when operating from ± 15 V supplies is less than 255 mW
(max), and only 35 mW (max) with a +5 V supply.
For applications requiring product meeting MIL-STD-883,
contact your local sales office for the DAC8420/883 data sheet,
which specifies operation over the –55°C to +125°C tempera-
ture range.
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703

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DAC8420 equivalent
DATA LOAD SEQUENCE
CS
tCSS
SDI A1
A0
X
X D11 D10 D9 D8
DAC8420
tCSH
D4 D3 D2 D1 D0
CLK
LD
tLD1
DATA LOAD TIMING
SDI
tDS tDH
CLK
tCL
CS
LD
VOUT
tCH
tCSH
tLD2
tLDW
tS
CLEAR TIMING
CLSEL
CLR
VOUT
±1LSB
Timing Diagram
tLD2
tCLRW
tS
±1LSB
+15V
1N4001
–10V
1N4001
+10V
1N4001
–15V
1N4001
10
+
10µF
10
+ 10µF
10
+
10µF
10
10µF
+
0.1µF
0.1µF
5k
0.1µF
0.1µF
1
NC 2
NC 3
4
5
NC 6
NC 7
8
DUT
5k
16
15
14
13 NC
12
11
10
9
10k
NC = NO CONNECT
Burn-In Diagram
ORDERING GUIDE
Model1
Temperature
Range
INL
Package
Package
(؎LSB) Description Option2
DAC8420EP
DAC8420EQ
DAC8420ES
DAC8420FP
DAC8420FQ
DAC8420FS
DAC8420QBC
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0.5
0.5
0.5
1.0
1.0
1.0
1.0
Plastic DIP
Cerdip
SOIC
Plastic DIP
Cerdip
SOIC
Dice3
P
Q
SOL
P
Q
SOL
NOTES
1A complete /883 data sheet is available. For availability and burn-in informa-
tion, contact your local sales office.
2PMI division letter designator.
3Dice tested at +25°C only.
REV. 0
–5–


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Featured Datasheets

Part NumberDescriptionMFRS
DAC8420The function is Quad 12-Bit Serial Voltage Output DAC. Analog DevicesAnalog Devices
DAC8420EPThe function is Quad 12-Bit Serial Voltage Output DAC. Analog DevicesAnalog Devices
DAC8420EQThe function is Quad 12-Bit Serial Voltage Output DAC. Analog DevicesAnalog Devices

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