ADCHX12BMM Datel, Inc., ADCHX12BMM Datasheet

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ADCHX12BMM

Manufacturer Part Number
ADCHX12BMM
Description
DIP32
Manufacturer
Datel, Inc.
Datasheet

Specifications of ADCHX12BMM

Date_code
04+
2-1
ADC-HX, ADC-HZ Series
ADC-HX, ADC-HZ Series
ADC-HX, ADC-HZ Series
ADC-HX, ADC-HZ Series
ADC-HX, ADC-HZ Series
12-Bit, 8 and 20µsec
Analog-to-Digital Converters
FEATURES
GENERAL DESCRIPTION
The ADC-HX and ADC-HZ Series are self-contained, high-
performance, 12-bit A/D converters manufactured with thick
and thin-film hybrid technology. They use the successive
approximation conversion technique to achieve a 12-bit
conversion 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.
These converters utilize a fast 12-bit monolithic DAC which
includes a precision zener reference source. The circuit also
contains a fast monolithic comparator, a monolithic 12-bit
successive approximation register, a clock and a monolithic
buffer amplifier. Nonlinearity is specified at ±1/2LSB maximum.
Both models have identical operation except for conversion
speed. They can be short-cycled to give faster conversions in
lower-resolution applications. Use of the internal buffer
amplifier increases conversion time by 3 microseconds, the
settling time of the amplifier. Output coding is complementary
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 either
commercial (0 to +70°C) or military (–55 to +125°C) operating
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
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1194 (U.S.A.) Tel: 508-339-3000 Fax: 508-339-6356 • For immediate assistance 800-233-2765
COMPARATOR
COMMON
BIPOLAR
OUTPUT
BUFFER
BUFFER
OFFSET
ANALOG
INPUT
INPUT
INPUT
INPUT
10V
20V
30
29
23
22
24
25
26
+15V POWER
5k
5k
28
+
CLOCK
CLOCK
RATE
17
AMPLIFIER
BUFFER
–15V POWER
Figure 1. Functional Block Diagram
COMPARATOR
CLOCK
OUT
19
31
START
CONV.
21
6.3k
LSB.
12
1
REF. OUT
11
2
18
temperature ranges. MIL-STD-883 and DESC Standard
Military Drawing models are also available.
10
3
PIN
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
4
9
PARALLEL DATA OUT
5
8
APPROXIMATION
FUNCTION
BIT 12 (LSB)
BIT 11
BIT 10
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1 (MSB)
BIT 1 (MSB)
SHORT CYCLE
DIGITAL COMMON
+5V POWER
12-BIT DAC
SUCCESSIVE
PRECISION
REF (+6.3V)
REGISTER
6
7
BIT NO.
7
6
INPUT/OUTPUT CONNECTIONS
+5V POWER
8
5
9
4
16
10
3
11
2
MSB
12
1
®
MSB
13
1
INNOVATION and EX C ELL E N C E
SERIAL
DATA
OUT
PIN
32
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
27
14
20
SERIAL DATA OUTPUT
+15V POWER
GAIN ADJUST
ANALOG COMMON
BIPOLAR OFFSET
COMPARATOR INPUT
START CONVERT
E.O.C. (STATUS)
CLOCK OUT
FUNCTION
–15V POWER
BUFFER INPUT
BUFFER OUTPUT
20V INPUT RANGE
10V INPUT RANGE
REFERENCE OUT
CLOCK RATE
GAIN
ADJUST
DIGITAL
COMMON
SHORT
CYCLE
E.O.C.
STATUS
®

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