参数资料
型号: TC7136ACPI
厂商: Microchip Technology Inc.
英文描述: Low Power 3-1/2 Digit Analog-to-Digital Converter
中文描述: 低功耗3-1/2数字模拟到数字转换器
文件页数: 4/12页
文件大小: 192K
代理商: TC7136ACPI
3-250
TELCOM SEMICONDUCTOR, INC.
TC7136
TC7136A
LOW POWER, 3-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTERS
COMMON
TC7136/A PIN DESCRIPTION
Pin No.
40-Pin PDIP
Normal
(Reverse)
Name
V
+
D
1
C
1
B
1
A
1
F
1
G
1
E
1
D
2
C
2
B
2
A
2
F
2
E
2
D
3
B
3
F
3
E
3
AB
4
POL
BP
G
3
A
3
C
3
G
2
V
V
INT
Description
1
2
3
4
5
6
7
8
9
(40)
(39)
(38)
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(28)
(27)
(26)
(25)
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
(15)
(14)
Positive supply voltage.
Activates the D section of the units display.
Activates the C section of the units display.
Activates the B section of the units display.
Activates the A section of the units display.
Activates the F section of the units display.
Activates the G section of the units display.
Activates the E section of the units display.
Activates the D section of the tens display.
Activates the C section of the tens display.
Activates the B section of the tens display.
Activates the A section of the tens display
Activates the F section of the tens display.
Activates the E section of the tens display.
Activates the D section of the hundreds display.
Activates the B section of the hundreds display.
Activates the F section of the hundreds display.
Activates the E section of the hundreds display.
Activates both halves of the 1 in the thousands display.
Activates the negative polarity display.
Backplane drive output.
Activates the G section of the hundreds display.
Activates the A section of the hundreds display.
Activates the C section of the hundreds display.
Activates the G section of the tens display.
Negative power supply voltage.
The integrating capacitor should be selected to give the maximum voltage
swing that ensures component tolerance build-up will not allow the integrator
output to saturate. When analog common is used as a reference and the
conversion rate is 3 readings per second, a 0.047
μ
F capacitor may be used.
The capacitor must have a low dielectric constant to prevent roll-over errors.
See Integrating Capacitor section for additional details.
Integration resistor connection. Use a 180 k
for a 200 mV full-scale range
and a 1.8 M
for 2V full-scale range.
The size of the auto-zero capacitor influences the system noise. Use a 0.47
μ
F
capacitor for a 200 mV full scale, and a 0.1
μ
F capacitor for a 2V full scale. See
paragraph on Auto-Zero Capacitor for more details.
The low input signal is connected to this pin.
The high input signal is connected to this pin.
This pin is primarily used to set the analog common-mode voltage for battery
operation or in systems where the input signal is referenced to the power
supply. See paragraph on Analog Common for more details. It also acts as a
reference voltage source.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
(13)
V
BUFF
29
(12)
C
AZ
30
31
32
(11)
(10)
(9)
V
IN
V
IN
+
ANALOG
相关PDF资料
PDF描述
TC7136CLW Low Power 3-1/2 Digit Analog-to-Digital Converter
TC7136CPI Low Power 3-1/2 Digit Analog-to-Digital Converter
TC7136CKW Low Power 3-1/2 Digit Analog-to-Digital Converter
TC7136ACKW Low Power 3-1/2 Digit Analog-to-Digital Converter
TC7136A LOW POWER, 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS
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