參數(shù)資料
型號: ADS-112/883
元件分類: ADC
英文描述: 1-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP24
封裝: METAL SEALED, CERAMIC, DDIP-24
文件頁數(shù): 1/6頁
文件大?。?/td> 73K
代理商: ADS-112/883
Figure 1. ADS-112 Functional Block Diagram
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.)
Tel: (508) 339-3000 Fax: (508) 339-6356 For immediate assistance: (800) 233-2765
ADS-112
12-Bit, 1MHz, Low-Power
Sampling A/D Converters
FEATURES
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
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.
INPUT/OUTPUT CONNECTIONS
PIN
FUNCTION
PIN
FUNCTION
1
BIT 12 (LSB)
24
–15V SUPPLY
2
BIT 11
23
ANALOG GROUND
3
BIT 10
22
+15V SUPPLY
4
BIT 9
21
+10V REFERENCE
5
BIT 8
20
BIPOLAR
6
BIT 7
19
ANALOG INPUT
7
BIT 6
18
COMP BIN
8
BIT 5
17
ENABLE (1-12)
9
BIT 4
16
START CONVERT
10
BIT 3
15
EOC
11
BIT 2
14
DIGITAL GROUND
12
BIT 1 (MSB)
13
+5V SUPPLY
REF
R
E
G
IS
T
E
R
E
G
IS
T
E
R
3
-S
T
A
T
E
O
U
T
P
U
T
R
E
G
IS
T
E
R
12 BIT 1 (MSB)
11 BIT 2
10 BIT 3
9
BIT 4
8
BIT 5
7
BIT 6
6
BIT 7
5
BIT 8
4
BIT 9
3
BIT 10
2
BIT 11
1
BIT 12 (LSB)
TIMING AND
CONTROL LOGIC
BIPOLAR 20
+10V REF. 21
START CONVERT 16
EOC 15
D
IG
IT
A
L
C
O
R
E
C
T
IO
N
L
O
G
IC
DAC
FLASH
ADC
COMP BIN 18
BUFFER
+
S/H
ANALOG INPUT 19
17 ENABLE (1-12)
S2
S1
13
+5V SUPPLY
22
+15V SUPPLY
23
ANALOG GROUND
14
DIGITAL GROUND
24
–15V SUPPLY
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