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| ADSD-1420S Datasheet, PDF (1/5 Pages) Murata Power Solutions Inc. – Dual 14-Bit, 20MSPS Sampling A/D Converter | |||
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Dual 14-Bit, 20MSPS
Sampling A/D Converter
FEATURES
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GENERAL DESCRIPTION
The ADSD-1420S is a functionally complete, dual
14-bit, 20MSPS, sampling A/D converter. Its standard,
40-pin, triple-wide SMT DIP contains two fast-settling
sample/hold amplifiers, two 14-bit A/D converters,
multiplexed output buffers, a precision reference, and
all the timing and control logic necessary to operate
from either two or a single start convert pulse.
The ADSD-1420S is optimized for wideband
frequency-domain applications and is fully FFT tested.
The ADSD-1420S requires only ±5V supplies and
typically consumes 1.6 Watts. The digital output power
supply is capable of directly driving 5V or 3V logic
systems. Models are available in either commercial
0 to +70°C or military -55 to +125°C operating
temperature ranges.
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION
PIN FUNCTION
1 INPUT A
40 INPUT B
2 +5VA
39 +5VA
3 ANALOG GROUND
38 ANALOG GROUND
4 N.C.
37 N.C.
5 OFFSET A
36 OFFSET B
6 RANGE
35 N.C.
7 1.55V REF
34 EOC A
8 ANALOG GROUND
33 ANALOG GROUND
9 â5V
32 â5V
10 ENABLE A
31 ENABLE B
11 START A
30 START B
12 VDD
29 EOC B
13 BIT 14 (LSB)
28 BIT 1 (MSB)
14 BIT 13
27 BIT 2
15 BIT 12
26 BIT 3
16 BIT 11
25 BIT 4
17 BIT 10
24 BIT 5
18 BIT 9
23 BIT 6
19 BIT 8
22 BIT 7
20 DGND
21 DGND
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Figure 1. ADSD-1420S Functional Block Diagram
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Page 1 of 5
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