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ADS-916GM

Description
14-Bit, 500kHz, Low-Power Sampling A/D Converters
File Size157KB,8 Pages
ManufacturerETC
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ADS-916GM Overview

14-Bit, 500kHz, Low-Power Sampling A/D Converters

®
®
ADS-916
14-Bit, 500kHz, Low-Power
Sampling A/D Converters
FEATURES
14-bit resolution
500kHz sampling rate
Functionally complete; No missing codes
Edge-triggered; No pipeline delays
Small 24-pin DDIP or SMT package
Low power, 1.8 Watts maximum
Operates from ±15V or ±12V supplies
Unipolar 0 to +10V input range
GENERAL DESCRIPTION
The ADS-916 is a high-performance, 14-bit, 500kHz sampling
A/D converter. This device samples input signals up to Nyquist
frequencies with no missing codes. The ADS-916 features
outstanding dynamic performance including a THD of –90dB.
Housed in a small 24-pin DDIP or SMT (gull-wing) package,
the functionally complete ADS-916 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. Digital input and output levels are TTL.
Requiring ±15V (or ±12V) and +5V supplies, the ADS-916
dissipates 1.8W (1.6W for ±12V) maximum. The unit is offered
with a unipolar input (0 to +10V). Models are available for use
in either commercial (0 to +70°C) or military (–55 to +125°C)
operating temperature ranges. Applications include radar,
sonar, spectrum analysis, and graphic/medical imaging.
PIN
1
2
3
4
5
6
7
8
9
10
11
12
INPUT/OUTPUT CONNECTIONS
FUNCTION
BIT 14 (LSB)
BIT 13
BIT 12
BIT 11
BIT 10
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
PIN
24
23
22
21
20
19
18
17
16
15
14
13
FUNCTION
–12V/–15V SUPPLY
ANALOG GROUND
+12V/+15V SUPPLY
+10V REFERENCE OUT
ANALOG INPUT
ANALOG GROUND
BIT 1 (MSB)
BIT 2
START CONVERT
EOC
DIGITAL GROUND
+5V SUPPLY
DAC
18 BIT 1 (MSB)
17 BIT 2
+10V REF. OUT 21
REF
S
2
FLASH
ADC
S/H
ANALOG INPUT 20
REGISTER
+
S
1
BUFFER
DIGITAL CORRECTION LOGIC
12 BIT 3
11 BIT 4
10 BIT 5
9
8
7
6
5
4
3
2
1
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12
BIT 13
BIT 14 (LSB)
START CONVERT 16
TIMING AND
CONTROL LOGIC
EOC 15
13
+5V SUPPLY
14
DIGITAL GROUND
22
+12V/+15V SUPPLY
19, 23
ANALOG GROUND
REGISTER
24
–12V/–15V SUPPLY
Figure 1. ADS-916 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

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Description 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters 14-Bit, 500kHz, Low-Power Sampling A/D Converters
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