ADC-207MC Murata Power Solutions Inc, ADC-207MC Datasheet
ADC-207MC
Manufacturer Part Number
ADC-207MC
Description
Analog To Digital Converter
Manufacturer
Murata Power Solutions Inc
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FEATURES
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ANALOG GROUND 7
DIGITAL GROUND 2
RANGE MIDPOINT 5
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ANALOG INPUT 4
7-bit fl ash A/D converter
20MHz sampling rate
Low power (250mW)
Single +5V supply
1.2 micron CMOS technology
7-bit latched 3-state output with overfl ow bit
Surface-mount versions
High-reliability version
No missing codes
–REFERENCE 3
+REFERENCE 6
+5V SUPPLY 18
CS2
CS1 8
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9
For full details go to
+VDD
R/2
R/2
R/2
R
R
R
R
Æ1
Æ2
Figure 1. ADC-207 Functional Block Diagram (DIP Pinout)
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PRODUCT OVERVIEW
The ADC-207 is the industry’s fi rst 7-bit fl ash
converter using an advanced high-speed VLSI 1.2
micron CMOS process. This process offers some
very distinctive advantages over other processes,
making the ADC-207 unique. The smaller geo-
metrics of the process achieve high speed, better
linearity and superior temperature performance.
has very low power consumption (250mW). The
device draws power from
a single +5V supply and is conservatively rated
for 20MHz operation. The ADC-207 allows using
sampling apertures as small as 12ns, making it
more closely approach an ideal sampler. The small
D
D
G Q
G Q
D
D
G Q
G Q
D
D
G Q
G Q
D
D
G Q
G Q
D
D
G Q
G Q
Since the ADC-207 is a CMOS device, it also
ENCODER
128-TO-7
D
G
D
G
D
G
D
G
D
G
D
G
D
G
D
G
Æ2
Æ1
Q
Q
Q
Q
Q
Q
Q
Q
GENERATOR
CLOCK
1 CLOCK INPUT
10 OVERFLOW
11 BIT 1 (MSB)
12 BIT 2
13 BIT 3
14 BIT 4
15 BIT 5
16 BIT 6
17 BIT 7 (LSB)
Technical enquiries email: data.acquisition@murata-ps.com, tel:
7-Bit, 20MHz, CMOS Flash A/D Converters
sampling apertures also let the device operate at
greater than 20MHz.
auto-balanced on every conversion to cancel out
any offsets due to temperature and/or dynamic
effects. The resistor ladder has a midpoint tap for
use with an external voltage source to improve
integral linearity beyond 7 bits. The ADC-207 also
provides the user with 3-state outputs for easy
interfacing to other components.
two operating temperature ranges, 0 to +70°C and
–55 to +125°C. Two high-reliability "QL" models
are also available.
The ADC-207 has 128 comparators which are
There are six models of the ADC-207 covering
DIP Pins
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
INPUT/OUTPUT CONNECTIONS
ANALOG GROUND
DIGITAL GROUND
ANALOG INPUT
+REFERENCE
CLOCK INPUT
–REFERENCE
MDA_ADC-207.B01 Page 1 of 6
+5V SUPPLY
OVERFLOW
BIT 1 (MSB)
BIT 7 (LSB)
MIDPOINT
FUNCTION
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
CS1
CS2
ADC-207
+1 508 339 3000
LCC Pins
11
12
13
14
16
17
19
20
21
23
24
1
4
5
6
7
8
9