ADS-929 View Datasheet(PDF) - DATEL Data Acquisition products
Part Name
Description
Manufacturer
ADS-929 Datasheet PDF : 9 Pages
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ADS-929
14-Bit, 2MHz, Low-Power Sampling A/D Converters
FEATURES
14-bit resolution
2MHz sampling rate
No missing codes
Functionally complete
Small 24-pin DDIP or SMT package
Low power, 1.7 Watts
Operates from ±15V or ±12V supplies
Edge-triggered; No pipeline delays
Bipolar ±5V input range (for unipolar 0 to +10V
input range see ADS-919 data sheet)
PRODUCT OVERVIEW
The ADS-929 is a high-performance, 14-bit,
2MHz sampling A/D converter. This device samples
input signals up to Nyquist frequencies with no
missing codes. The ADS-929 features outstanding
dynamic performance including a THD of –79dB.
Housed in a small 24-pin DDIP or SMT (gull-
wing) package, the functionally complete ADS-929
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-929 typically dissipates 1.7W (1.4W for
±12V). The unit is offered with a bipolar input
(–5V to +5V). Models are available for use in
either commercial (0 to +70°C), industrial (–40
to +100°C), or HI-REL (–55 to +125°C) operating
temperature ranges. Applications include radar,
sonar, spectrum analysis, and graphic/medical
imaging.
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION
PIN FUNCTION
1 BIT 14 (LSB)
24 –12V/–15V SUPPLY
2 BIT 13
23 ANALOG GROUND
3 BIT 12
22 +12V/+15V SUPPLY
4 BIT 11
21 +10V REFERENCE OUT
5 BIT 10
20 ANALOG INPUT
6 BIT 9
19 ANALOG GROUND
7 BIT 8
18 BIT 1 (MSB)
8 BIT 7
17 BIT 2
9 BIT 6
16 START CONVERT
10 BIT 5
15 EOC
11 BIT 4
14 DIGITAL GROUND
12 BIT 3
13 +5V SUPPLY
BLOCK DIAGRAM
+10V REF. OUT 21
ANALOG INPUT 20
S/H
–
+
REF
S2
FLASH
ADC
S1
BUFFER
DAC
START CONVERT 16
EOC 15
TIMING AND
CONTROL LOGIC
13
+5V SUPPLY
14
DIGITAL GROUND
22
+12V/+15V SUPPLY
19, 23
ANALOG GROUND
Figure 1. ADS-929 Functional Block Diagram
18 BIT 1 (MSB)
17 BIT 2
12 BIT 3
11 BIT 4
10 BIT 5
9 BIT 6
8 BIT 7
7 BIT 8
6 BIT 9
5 BIT 10
4 BIT 11
3 BIT 12
2 BIT 13
1 BIT 14 (LSB)
24
–12V/–15V SUPPLY
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com
12 Aug 2015 MDA_ADS-929.D01 Page 1 of 9
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