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參數資料
| 型號： | ADS-119MM |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:37; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-37 |
| 中文描述： | 12位，10MHz的，低功耗采樣A / D轉換器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 134K |
| 代理商： | ADS-119MM |
ADS -119
12-Bit, 10MHz, Low-Power
Sampling A/D Converters
Figure 1. ADS-119 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
FEATURES
12-bit resolution
10MHz minimum sampling rate
Functionally complete
Small 24-pin DDIP or SMT package
Requires only ±5V supplies
Low-power, 1.8 Watts
Outstanding dynamic performance
Edge-triggered
No missing codes over temperature
Ideal for both time and frequency-domain applications
GENERAL DESCRIPTION
The ADS-119 is a high-performance, 12-bit, 10MHz sampling
A/D converter. The device samples input signals up to Nyquist
frequencies with no missing codes. The ADS-119 features
excellent dynamic performance including a typical SNR of
69dB.
Packaged in a metal-sealed, ceramic, 24-pin DDIP, the
functionally complete ADS-119 contains a fast-settling sample/
hold amplifier, a subranging (two-pass) A/D converter, a
precise voltage reference, timing/control logic, and error-
correction circuitry. All timing and control logic operates from
the rising edge of a single start convert pulse. Digital input and
output levels are TTL.
Requiring only ±5V supplies, the ADS-119 typically dissipates
1.8 Watts. The unit offers a bipolar input range of ±1.5V.
Models are available for use in either commercial (0 to +70°C)
or military (–55 to +125°C) operating temperature ranges.
INPUT/OUTPUT CONNECTIONS
PIN
FUNCTION
PIN
FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
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
24
23
22
21
20
19
18
17
16
15
14
13
NO CONNECT
ANALOG GROUND
NO CONNECT
+5V ANALOG SUPPLY
–5V SUPPLY
ANALOG INPUT
ANALOG GROUND
OFFSET ADJUST
START CONVERT
DATA VALID
DIGITAL GROUND
+5V DIGITAL SUPPLY
Typical applications include signal analysis, medical/graphic
imaging, process control, ATE, radar, and sonar.
REF
DAC
R
R
O
12 BIT 1 (MSB)
11 BIT 2
10 BIT 3
9 BIT 4
8 BIT 5
7 BIT 6
6 BIT 7
5 BIT 9
4 BIT 9
3 BIT 10
2 BIT 11
1 BIT 12 (LSB)
TIMING AND
CONTROL LOGIC
OFFSET ADJUST 17
ANALOG INPUT 19
START CONVERT 16
DATA VALID 15
–
+
S/H
BUFFER
D
FLASH
ADC
1
FLASH
ADC
2
Σ
AMP
21
+5V ANALOG
SUPPLY
20
–5V SUPPLY
18, 23
ANALOG
GROUND
13
+5V DIGITAL
SUPPLY
14
DIGITAL
GROUND
22, 24
NO CONNECT
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