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DAC7802 Datasheet Preview

DAC7802 Datasheet

Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS

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DAC7802 pdf
® DAC7800
DAC7801
DAC7802
Dual Monolithic CMOS 12-Bit Multiplying
DIGITAL-TO-ANALOG CONVERTERS
FEATURES
q TWO D/As IN A 0.3" WIDE PACKAGE
q SINGLE +5V SUPPLY
q HIGH SPEED DIGITAL INTERFACE:
Serial—DAC7800
8 + 4-Bit Parallel—DAC7801
12-Bit Parallel—DAC7802
q MONOTONIC OVER TEMPERATURE
q LOW CROSSTALK: –94dB min
q FULLY SPECIFIED OVER –40OC TO +85OC
APPLICATIONS
q PROCESS CONTROL OUTPUTS
q ATE PIN ELECTRONICS LEVEL SETTING
q PROGRAMMABLE FILTERS
q PROGRAMMABLE GAIN CIRCUITS
q AUTO-CALIBRATION CIRCUITS
DESCRIPTION
The DAC7800, DAC7801 and DAC7802 are mem-
bers of a new family of monolithic dual 12-bit CMOS
multiplying digital-to-analog converters. The digital
interface speed and the AC multiplying performance
are achieved by using an advanced CMOS process
optimized for data conversion circuits. High stability
on-chip resistors provide true 12-bit integral and dif-
ferential linearity over the wide industrial temperature
range of –40oC to +85oC.
DAC7800 features a serial interface capable of clock-
ing-in data at a rate of at least 10MHz. Serial data is
clocked (edge triggered) MSB first into a 24-bit shift
register and then latched into each D/A separately or
simultaneously as required by the application. An
asynchronous CLEAR control is provided for power-
on reset or system calibration functions. It is packaged
in a 16-pin 0.3" wide plastic DIP.
DAC7801 has a 2-byte (8 + 4) double-buffered
interface. Data is first loaded (level transferred) into
the input registers in two steps for each D/A. Then
both D/As are updated simultaneously. DAC7801 fea-
tures an asynchronous CLEAR control. DAC7801 is
packaged in a 24-pin 0.3" wide plastic DIP.
DAC7802 has a single-buffered 12-bit data word in-
terface. Parallel data is loaded (edge triggered) into the
single D/A register for each D/A. DAC7802 is pack-
aged in a 24-pin 0.3" wide plastic DIP.
DAC7802
12 12-Bit Interface
DAC7801
8 8-Bit Interface
8 Bits + 4 Bits
Serial
DAC7800
Serial Interface
VREF A
12 12-Bit MDAC
DAC A
RFB A
IOUT A
AGND A
VREF B
12 12-Bit MDAC
DAC B
RFB B
IOUT B
AGND B
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1990 Burr-Brown Corporation
PDS-11079G
DAC7800Pr,int0ed1in,U0.S.2A. January, 1998
®



Burr-Brown
Burr-Brown

DAC7802 Datasheet Preview

DAC7802 Datasheet

Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS

No Preview Available !

DAC7802 pdf
SPECIFICATIONS
ELECTRICAL
At VDD = +5VDC, VREF A = VREF B = +10V, TA = –40°C to +85°C, unless otherwise noted.
DAC7800, 7801, 7802K
PARAMETER
CONDITIONS
MIN
TYP
MAX
ACCURACY
Resolution
Relative Accuracy
Differential Nonlinearity
Gain Error
Gain Temperature Coefficient(1)
Output Leakage Current
REFERENCE INPUT
Input Resistance
Input Resistance Match
12
Measured Using RFB A and RFB B.
All Registers Loaded with All 1s.
TA = +25°C
TA = –40°C to +85°C
6
2
0.005
3
10
0.5
±1
±1
±3
5
10
150
14
3
DIGITAL INPUTS
VIH (Input High Voltage)
VIL (Input Low Voltage)
IIN (Input Current)
CIN (Input Capacitance)
TA = +25°C
TA = –40°C to +85°C
POWER SUPPLY
VDD
IDD
Power Supply Rejection
VDD from 4.5V to 5.5V
T Same specification as for DAC7800, 7801, 7802K.
2
0.8
±1
±10
0.8 10
4.5 5.5
0.2 2
0.002
DAC7800, 7801, 7802L
MIN
TYP
MAX
T
±1/2
T
±1
TT
TT
TT
TTT
T2
T
T
T
T
TT
TT
TT
T
UNITS
Bits
LSB
LSB
LSB
ppm/°C
nA
nA
k
%
V
V
µA
µA
pF
V
mA
%/%
AC PERFORMANCE
OUTPUT OP AMP IS OPA602.
At VDD = +5VDC, VREF A = VREF B = +10V, TA = +25°C, unless otherwise noted. These specifications are fully characterized but not subject to test.
DAC7800, 7801, 7802K
DAC7800, 7801, 7802L
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OUTPUT CURRENT SETTLING TIME
DIGITAL-TO-ANALOG GLITCH IMPULSE
AC FEEDTHROUGH
OUTPUT CAPACITANCE
To 0.01% of Full Scale
RL = 100, CL = 13pF
VREF A = VREF B = 0V
RL = 100, CL = 13pF
fVREF = 10kHz
DAC Loaded with All 0s
DAC Loaded with All 1s
0.4 0.8
0.9
–75 –72
30 50
70 100
TT
T
TT
TT
TT
µs
nV-s
dB
pF
pF
CHANNEL-TO-CHANNEL ISOLATION
VREF A to IOUT B
VREF B to IOUT A
fVREF A = 10kHz
VREF B = 0V,
Both DACs Loaded with 1s
fVREF B = 10kHz
VREF A = 0V,
Both DACs Loaded with 1s
–90
–90
–94
–101
TT
TT
dB
dB
DIGITAL CROSSTALK
Full Scale Transition
RL = 100, CL = 13pF
T Same specification as for DAC7800, 7801, 7802K.
NOTE: (1) Guaranteed but not tested.
0.9
T nV-s
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
DAC7800, 01, 02
2


Part Number DAC7802
Description Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS
Maker Burr-Brown
Total Page 12 Pages
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