參數(shù)資料
型號: AD75004KN
廠商: ANALOG DEVICES INC
元件分類: DAC
英文描述: ECONOLINE: REC2.2-S_DRW(Z)/H* - 2.2W DIP Package- 1kVDC Isolation- Regulated Output- 4.5-9V, 9-18V, 18-36V, 36-72V Wide Input Range 2 : 1- UL94V-0 Package Material- Continuous Short Circiut Protection- Cost Effective- 100% Burned In- Efficiency to 84%
中文描述: QUAD, PARALLEL, 8 BITS INPUT LOADING, 2 us SETTLING TIME, 12-BIT DAC, PDIP24
封裝: PLASTIC, DIP-24
文件頁數(shù): 1/4頁
文件大?。?/td> 102K
代理商: AD75004KN
FUNCT IONAL BLOCK DIAGRAM
VOLTAGE
REFERENCE
TTL
INPUTS
8-BIT
BUS
INPUT
LATCHES
DAC
LATCHES
12-BIT
LATCH
+5V
D7
D6
D5
D4
D3
D2
D1
D0
CONTROL LOGIC
TTL INPUTS
A3 A2 A1 A0
2.22k
+12V
–12V
10k
V
REFOUT
V
REFIN
CS WR
V
OUT3
V
OUT2
V
OUT1
V
OUT0
V
DD
V
SS
AGND
DGND
8 + 4-BIT
LATCHES
8 + 4-BIT
LATCHES
8 + 4-BIT
LATCHES
8 + 4-BIT
LATCHES
12-BIT
DAC
12-BIT
DAC
12-BIT
DAC
12-BIT
DAC
12-BIT
LATCH
12-BIT
LATCH
12-BIT
LATCH
10k
10k
10k
AD75004
REV. A
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.
a
Quad 12-Bit
D/AConverter
AD75004
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
PRODUCT DE SCRIPT ION
T he AD75004 contains four complete, voltage output, 12-bit
digital-to-analog converters, a high stability bandgap reference,
and double-buffered input latches on a single chip. T he convert-
ers use 12 precision high speed bipolar current steering switches
and laser-trimmed thin-film resistor networks to provide fast
settling time and high accuracy.
Microprocessor compatibility is achieved by the on-chip
double-buffered latches. T he design of the input latches allows
direct interface to 8-bit buses. T he 12 bits of data from the first
rank of latches can then be transferred to the second rank,
avoiding generation of spurious analog output values. T he latch
responds to strobe pulses as short as 50 ns, allowing use with
fast microprocessors.
T he functional completeness and high performance of the
AD75004 results from a combination of advanced switch de-
sign, the BiMOS II fabrication process, and proven laser trim-
ming technology. BiMOS II is an epitaxial BiCMOS process
optimized for analog and converter functions. T he AD75004 is
trimmed at the wafer level and is specified to
±
1/2 LSB maxi-
mum linearity error at 25
°
C and
±
3/4 LSB over the full operat-
ing temperature range. T he on-chip output amplifiers provide
an output range of
±
5 V, with 1 LSB equal to 2.44 mV.
FEATURES
4 Complete 12-Bit D/A Functions
Double-Buffered Latches
Simultaneous Update of All DACs Possible
6
5 V Output Range
High Stability Bandgap Reference
Monolithic BiMOS Construction
Guaranteed Monotonic over Temperature
3/4 LSB Linearity Guaranteed over Temperature
4
m
s max Settling Time to 0.01%
Operates with
6
12 V Supplies
Low Power: 720 mW max Including Reference
TTL/5 V CMOS Compatible Logic Inputs
8-Bit Microprocessor Interface
24-Pin PDIP or 28-Lead PLCC Package
T he bandgap reference on the chip has low noise, long term
stability and temperature drift characteristics comparable to
discrete reference diodes. T he absolute value of the reference is
laser trimmed to +5.00 V with 0.6% maximum error. Its tem-
perature coefficient is also laser trimmed.
T ypical full-scale gain T C is 15 ppm/
°
C. With guaranteed
monotonicity over the full temperature range, the AD75004 is
well suited for wide temperature range performance.
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