ADS-930MC 查看數據表（PDF） - Murata Power Solutions
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ADS-930MC Datasheet PDF : 8 Pages
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INNOVATION and EXCELLENCE
ADS-930
16-Bit, 500kHz
Sampling A/D Converters
FEATURES
• 16-bit resolution
• 500kHz sampling rate
• Functionally complete
• Excellent dynamic performance
• 83dB SNR, –89dB THD
• No missing codes
• Small, 40-pin, TDIP package
• 3.5 Watts power dissipation
• On-board FIFO
GENERAL DESCRIPTION
The low-cost ADS-930 is a high-performance, 16-bit, 500kHz
sampling A/D converter. This device accurately samples full-
scale input signals up to Nyquist frequencies with no missing
codes. The dynamic performance of the ADS-930 is optimized
to achieve a THD of –89dB and an SNR of 83dB.
Packaged in a small, 40-pin, ceramic TDIP, the functionally
complete ADS-930 contains a fast-settling sample-hold
amplifier, a subranging (three-pass) A/D converter, an internal
reference, an on-board FIFO, timing and control logic, three-
state outputs and error-correction circuitry. Digital inputs/
outputs are TTL.
Requiring ±15V and +5V supplies, the ADS-930 typically
dissipates 3.5 Watts. The unit is offered with a bipolar input
range of ±5V or a unipolar input range of 0 to –10V. Models
are available for use in either commercial (0 to +70°C) or
military (–55 to +125°C) operating temperature ranges.
Typical applications include radar, sonar, medical/graphic
imaging, and FFT spectrum analysis.
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION
PIN FUNCTION
1
+10V REF. OUT
2
BIPOLAR
3
ANALOG INPUT
4
ANALOG GROUND
5
OFFSET ADJUST
6
GAIN ADJUST
7
+15V SUPPLY
8
COMP. BITS
9
ENABLE
10 FIFO READ
11 ANALOG GROUND
12 –15V SUPPLY
13 ANALOG GROUND
14 OVERFLOW
15 EOC
16 +5V SUPPLY
17 START CONVERT
18 DIGITAL GROUND
19 FSTAT1
20 FSTAT2
40 BIT 1 (MSB)
39 BIT 1 (MSB)
38 BIT 2
37 BIT 3
36 BIT 4
35 BIT 5
34 BIT 6
33 BIT 7
32 BIT 8
31 BIT 9
30 ANALOG GROUND
29 BIT 10
28 BIT 11
27 BIT 12
26 BIT 13
25 BIT 14
24 DIGITAL GROUND
23 FIFO/DIR
22 BIT 15
21 BIT 16 (LSB)
GAIN ADJUST 6
GAIN
ADJUST
CKT.
POWER AND GROUNDING
+5V SUPPLY
16
+15V SUPPLY
7
–15V SUPPLY
12
ANALOG GROUND 4, 11, 13, 30
DIGITAL GROUND
18, 24
+10V REF. OUT 1
OFFSET ADJUST 5
BIPOLAR 2
PRECISION
+10V REFERENCE
OFFSET
ADJUST
CKT.
ANALOG INPUT 3
S/H
START CONVERT 17
EOC 15
COMP. BITS 8
TIMING AND
CONTROL LOGIC
Figure 1. ADS-930 Functional Block Diagram
19 FSTAT1
20 FSTAT2
23 FIFO/DIR
10 FIFO READ
40 BIT 1 (MSB)
39 BIT 1 (MSB)
38 BIT 2
37 BIT 3
36 BIT 4
35 BIT 5
34 BIT 6
33 BIT 7
32 BIT 8
31 BIT 9
29 BIT 10
28 BIT 11
27 BIT 12
26 BIT 13
25 BIT 14
22 BIT 15
21 BIT 16 (LSB)
9 ENABLE
14 OVERFLOW
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048 (U.S.A.) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: datellit@mcimail.com
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