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ADS-119GC

Description
12-Bit, 10MHz, Low-Power Sampling A/D Converters
File Size135KB,8 Pages
ManufacturerETC
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ADS-119GC Overview

12-Bit, 10MHz, Low-Power Sampling A/D Converters

®
®
ADS-119
12-Bit, 10MHz, Low-Power
Sampling A/D Converters
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
PIN
1
2
3
4
5
6
7
8
9
10
11
12
INPUT/OUTPUT CONNECTIONS
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
PIN
24
23
22
21
20
19
18
17
16
15
14
13
FUNCTION
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
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.
Typical applications include signal analysis, medical/graphic
imaging, process control, ATE, radar, and sonar.
OFFSET ADJUST 17
BUFFER
REGISTER
ANALOG INPUT 19
S/H
+
FLASH
ADC
1
12 BIT 1 (MSB)
11 BIT 2
DIGITAL CORRECTION LOGIC
10 BIT 3
OUTPUT REGISTER
9
8
7
6
5
4
3
2
1
BIT 4
BIT 5
BIT 6
BIT 7
BIT 9
BIT 9
BIT 10
BIT 11
BIT 12 (LSB)
REF
Σ
DAC
AMP
FLASH
ADC
2
START CONVERT 16
DATA VALID 15
TIMING AND
CONTROL LOGIC
21
+5V ANALOG
SUPPLY
13
+5V DIGITAL
SUPPLY
14
DIGITAL
GROUND
20
–5V SUPPLY
REGISTER
18, 23
ANALOG
GROUND
22, 24
NO CONNECT
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

ADS-119GC Related Products

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Description 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters 12-Bit, 10MHz, Low-Power Sampling A/D Converters
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