ADS-112 Datel, Inc., ADS-112 Datasheet
ADS-112
Manufacturer Part Number
ADS-112
Description
1mhz, Low-power ADC: 12-bit
Manufacturer
Datel, Inc.
Datasheet
1.ADS-112.pdf
(6 pages)
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FEATURES
GENERAL DESCRIPTION
DATEL’s ADS-112 is a 12-bit, functionally complete, sampling
A/D converter that is packaged in a space-saving 24-pin DDIP.
Requiring ±15V and +5V supplies, a minimum sampling rate of
1MHz is achieved while only dissipating 1.3 Watts. The
ADS-112 digitizes signals up to Nyquist frequencies. Models
are available for use in either commercial (0 to + 70°C) or
military (–55 to +125°C) operating temperature ranges.
Typical applications include spectrum, transient, vibration and
waveform analysis. This device is also ideally suited for radar,
sonar, video digitization, medical instrumentation and high-
speed data acquisition systems.
START CONVERT 16
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.)
ANALOG INPUT 19
12-bit resolution
No missing codes
1MHz minimum sampling rate
Functionally complete
Small 24-pin DDIP
Low-power, 1.3 Watts
Three-state output buffers
Samples to Nyquist frequencies
+10V REF. 21
COMP BIN 18
®
BIPOLAR 20
EOC 15
+5V SUPPLY
13
CONTROL LOGIC
–
+
TIMING AND
S/H
DIGITAL GROUND
®
Figure 1. ADS-112 Functional Block Diagram
14
S
S
2
1
BUFFER
+15V SUPPLY
Tel: (508) 339-3000 Fax: (508) 339-6356
FLASH
22
ADC
REF
PIN
10
11
12
1
2
3
4
5
6
7
8
9
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)
ANALOG GROUND
DAC
INPUT/OUTPUT CONNECTIONS
Sampling A/D Converters
12-Bit, 1MHz, Low-Power
23
For immediate assistance: (800) 233-2765
–15V SUPPLY
PIN
24
23
22
21
20
19
18
17
16
15
14
13
24
ADS-112
FUNCTION
–15V SUPPLY
ANALOG GROUND
+15V SUPPLY
+10V REFERENCE
BIPOLAR
ANALOG INPUT
COMP BIN
ENABLE (1-12)
START CONVERT
EOC
DIGITAL GROUND
+5V SUPPLY
17 ENABLE (1-12)
12 BIT 1 (MSB)
11 BIT 2
10 BIT 3
9
8
7
6
5
4
3
2
1
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12 (LSB)
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