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參數(shù)資料
| 型號(hào)： | AD9012AJ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | High Speed 8-Bit TTL A/D Converter |
| 中文描述： | 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CQCC28 |
| 封裝： | CERAMIC, LCC-28 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大小： | 141K |
| 代理商： | AD9012AJ |
REV. D
AD9012
–4–
PIN FUNCTION DESCRIPTIONS
Pin #
Name
Description
1
1
1
2
DIGITAL +V
S
OVERFLOW INH
One of three positive digital supply pins (nominally +5.0 V).
OVERFLOW INHIBIT controls the data output coding for overvoltage inputs (AIN
≥
+ V
REF
).
1
3
HYSTERESIS
The Hysteresis control voltage varies the comparator hysteresis from 0 mV to 10 mV, for a
change from –5.2 V to –2.2 V at the Hysteresis control pin.
The most positive reference voltage for the internal resistor ladder.
One of two analog input pins. Both analog input pins should be connected together.
One of two analog ground pins. Both analog ground pins should be connected together.
TTL level encode command input. ENCODE is rising edge sensitive.
One of three positive digital supply pins (nominally +5.0 V).
One of two analog ground pins. Both analog ground pins should be connected together.
One of two analog input pins. Both analog inputs should be connected together.
The most negative reference voltage for the internal resistor ladder.
The midpoint tap on the internal resistor ladder.
One of three positive digital supply pins (nominally +5.0 V).
One of two negative digital supply pins (nominally –5.2 V). Both digital supply pins should be
connected together.
Digital data output. D
1
(LSB) is the least significant bit of the digital output word.
Digital data output.
One of two digital ground pins. Both digital grounds pins should be connected together.
One of two negative analog supply pins (nominally –5.2 V). Both analog supply pins should be
connected together.
One of two digital ground pins. Both digital ground pins should be connected together.
Digital data output.
Digital data output D
8
(MSB) is the most significant bit of the digital output word.
Overflow data output. Logic HIGH indicates an input overvoltage (V
IN
> + V
REF
), if
OVERFLOW INHIBIT is enabled (overflow enabled, floating). See OVERFLOW INHIBIT.
One of two negative digital supply pins (nominally –5.2 V). Both digital supply pins should be
connected together.
1
4
1
5
1
6
1
7
1
8
1
9
10
11
12
13
14
+V
REF
ANALOG INPUT
ANALOG GROUND
ENCODE
DIGITAL +V
S
ANALOG GROUND
ANALOG INPUT
–V
REF
REF
MID
DIGITAL +V
S
DIGITAL –V
S
15
16–19
20
21, 22
D
1
(LSB)
D
2
–D
5
DIGITAL GROUND
ANALOG –V
S
23
24, 25
26
27
DIGITAL GROUND
D
6
, D
7
D
8
(MSB)
OVERFLOW
28
DIGITAL –V
S
ANALOG
INPUT
OVERFLOW ENABLED (FLOATING)
OF D
l
D
2
D
3
D
4
D
5
D
6
D
7
D
8
OVERFLOW INHIBITED (GND)
OF D
l
D
2
D
3
D
4
D
5
D
6
D
7
D
8
V
IN
≥
+ V
REF
V
IN
< + V
REF
1 0 0 0 0 0 0 0 0
0 X X X X X X X X
0 1 1 1 1 1 1 1 1
0 X X X X X X X X
PIN CONFIGURATIONS
TOP VIEW
(Not to Scale)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
AD9012
DIGITAL V
S
+
REF
MID
–V
REF
ANALOG INPUT
ANALOG GROUND
DIGITAL V
S
+
DIGITAL V
S
+
OVERFLOW INH
HYSTERESIS
+V
REF
ENCODE
ANALOG GROUND
ANALOG INPUT
D
1
(LSB)
D
2
D
3
D
4
D
5
DIGITAL GROUND
ANALOG V
S
–
DIGITAL V
S
–
OVERFLOW
D
8
(MSB)
D
7
D
6
ANALOG V
S
–
DIGITAL GROUND
DIGITAL V
S
–
TOP VIEW
(Not to Scale)
28 27
1
2
3
4
26
25
21
22
23
24
19
20
5
6
7
8
9
10
11
12 13 14 15 16
R
M
17 18
D
3
D
7
D
6
DIGITAL GROUND
ANALOG V
S
–
ANALOG V
S
–
DIGITAL GROUND
D
5
ANALOG INPUT
ANALOG GROUND
ENCODE
DIGITAL V
S
+
ANALOG GROUND
ANALOG INPUT
–V
REF
+
R
H
O
D
S
+
D
S
–
O
D
8
(
D
S
+
D
S
–
D
1
(
D
2
D
4
AD9012
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|---|---|
| AD9012AQ | High Speed 8-Bit TTL A/D Converter |
| AD9012BJ | High Speed 8-Bit TTL A/D Converter |
| AD9012BQ | High Speed 8-Bit TTL A/D Converter |
| AD9012SE | High Speed 8-Bit TTL A/D Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD9012AN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| AD9012AP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| AD9012AQ | 制造商:Rochester Electronics LLC 功能描述:8BIT 100MSPS ADC - Bulk |
| AD9012BJ | 制造商:Analog Devices 功能描述: |
| AD9012BN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
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