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ADC-HX12BME

更新时间： 2024-11-25 04:11:03
品牌 Logo 应用领域
村田 - MURATA 转换器
页数 文件大小 规格书
7页 197K
描述
ADC, Successive Approximation,

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ADC-HX12BME 数据手册

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