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ADC-HZ12BGC-C Datasheet دیتاشیت PDF دانلود

دیتاشیت - Datel - 8 and 20u sec Analog-to-Digital Converters

شماره قطعه ADC-HZ12BGC-C
شرح مفصل 8 and 20u sec Analog-to-Digital Converters
تولید کننده Datel 
آرم Datel 


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ADC-HZ12BGC-C شرح
®®
ADC-HX, ADC-HZ Series
12-Bit, 8 and 20μsec Analog-to-Digital Converters
FEATURES
12-bit resolution
8 or 20 microsecond conversion times
5 input voltage ranges
Internal high Z input buffer
Short-cycle operation
MIL-STD-883 models available
+15V POWER
28
–15V POWER
31
PRODUCT OVERVIEW
The ADC-HX and ADC-HZ Series are self-
Both models have identical operation except for
contained, high-performance, 12-bit A/D convert- conversion speed. They can be short-cycled to give
ers manufactured with thick and thin-film hybrid faster conversions in lower-resolution applica-
technology. They use the successive approximation tions. Use of the internal buffer amplifier increases
conversion technique to achieve a 12-bit conver- conversion time by 3 microseconds, the settling
sion in 20 and 8 microseconds, respectively. Five time of the amplifier. Output coding is comple-
input voltage ranges are programmable by external mentary binary, complementary offset binary, or
pin connection. An internal buffer amplifier is also complementary two’s complement. Serial data is
provided for applications in which 50 megohm
also brought out. The package is a 32-pin ceramic
input impedance is required.
TDIP. Models are available for use in commercial
These converters utilize a fast 12-bit monolithic (0 to +70°C), industrial (–40 to +100°C), or military
DAC which includes a precision zener reference
(–55 to +125°C) operating temperature ranges.
source. The circuit also contains a fast mono-
MIL-STD-883 and DESC Standard Military Drawing
lithic comparator, a monolithic 12-bit successive models are also available.
approximation register, a clock and a monolithic
buffer amplifier. Nonlinearity is specified at
±1/2LSB maximum.
INPUT/OUTPUT CONNECTIONS
Pin Function Pin Function
1 BIT 12 (LSB)
32 SERIAL DATA OUTPUT
2 BIT 11
31 –15V POWER
3 BIT 10
30 BUFFER INPUT
4 BIT 9
29 BUFFER OUTPUT
5 BIT 8
28 +15V POWER
6 BIT 7
27 GAIN ADJUST
7 BIT 6
26 ANALOG COMMON
8 BIT 5
25 20V INPUT RANGE
9 BIT 4
24 10V INPUT RANGE
10 BIT 3
23 BIPOLAR OFFSET
11 BIT 2
22 COMPARATOR INPUT
12 BIT 1 (MSB)
21 START CONVERT
13 BIT 1 (MSB)
20 E.O.C. (STATUS)
14 SHORT CYCLE
19 CLOCK OUT
REF. OUT
18
+5V POWER
16
15 DIGITAL COMMON
16 +5V POWER
18 REFERENCE OUT
17 CLOCK RATE
BUFFER
INPUT
30
BUFFER 29
OUTPUT
BIPOLAR
OFFSET
23
COMPARATOR 22
INPUT
10V
INPUT
24
20V
INPUT
25
ANALOG
COMMON
26
BUFFER
+ AMPLIFIER
6.3kW
5kW COMPARATOR
5kW
CLOCK
PRECISION
REF (+6.3V)
12-BIT DAC
SUCCESSIVE
APPROXIMATION
REGISTER
GAIN
27 ADJUST
15
DIGITAL
COMMON
14 SHORT
CYCLE
20
E.O.C.
STATUS
17
CLOCK
RATE
19 21 1 2 3 4 5 6 7 8 9 10 11 12 13
CLOCK START 12 11 10 9 8 7 6 5 4 3 2 1 1
OUT CONV. LSB.
BIT NO.
MSB MSB
PARALLEL DATA OUT
Figure 1. Functional Block Diagram
32
SERIAL
DATA
OUT
DATEL
• 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com
ADC-HXHZ.C01 Page 1 of 7

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