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参数资料
| 型号： | TC7126ACKW |
| 元件分类： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, PQFP44 |
| 封装： | PLASTIC, QFP-44 |
| 文件页数： | 20/22页 |
| 文件大小： | 554K |
| 代理商： | TC7126ACKW |
2002 Microchip Technology Inc.
DS21458B-page 7
TC7126/A
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Pin Number
(40-Pin PDIP)
Normal
(Reversed)
Symbol
Description
1
(40)
V+
Positive supply voltage.
2(39)
D1
Activates the D section of the units display.
3(38)
C1
Activates the C section of the units display.
4(37)
B1
Activates the B section of the units display.
5(36)
A1
Activates the A section of the units display.
6(35)
F1
Activates the F section of the units display.
7(34)
G1
Activates the G section of the units display.
8(33)
E1
Activates the E section of the units display.
9(32)
D2
Activates the D section of the tens display.
10
(31)
C2
Activates the C section of the tens display.
11
(30)
B2
Activates the B section of the tens display.
12
(29)
A2
Activates the A section of the tens display.
13
(28)
F2
Activates the F section of the tens display.
14
(27)
E2
Activates the E section of the tens display.
15
(26)
D3
Activates the D section of the hundreds display.
16
(25)
B3
Activates the B section of the hundreds display.
17
(24)
F3
Activates the F section of the hundreds display.
18
(23)
E3
Activates the E section of the hundreds display.
19
(22)
AB4
Activates both halves of the 1 in the thousands display.
20
(21)
POL
Activates the negative polarity display.
21
(20)
BP
LCD Backplane drive output (TC7106A). Digital Ground (TC7107A).
22
(19)
G3
Activates the G section of the hundreds display.
23
(18)
A3
Activates the A section of the hundreds display.
24
(17)
C3
Activates the C section of the hundreds display.
25
(16)
G2
Activates the G section of the tens display.
26
(15)
V-
Negative power supply voltage.
27
(14)
VINT
The integrating capacitor should be selected to give the maximum voltage swing that
ensures component tolerance buildup 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
F capacitor may be used. The capacitor must have a low
dielectric constant to prevent rollover errors. See Section 6.3, Integrating Capacitor
for additional details.
28
(13)
VBUFF
Integration resistor connection. Use a 180k
resistor for a 200mV full-scale range
anda1.8M
resistor for a 2V full scale range.
29
(12)
CAZ
The size of the auto-zero capacitor influences system noise. Use a 0.33
F capacitor
for 200mV full scale, and a 0.033
F capacitor for 2V full scale. See Section 6.1,
Auto-Zero Capacitor for additional details.
30
(11)
VIN-
The analog LOW input is connected to this pin.
31
(10)
VIN+
The analog HIGH input signal is connected to this pin.
32
(9)
ANALOG
COMMON
This pin is primarily used to set the Analog Common mode voltage for battery opera-
tion, or in systems where the input signal is referenced to the power supply. It also
acts as a reference voltage source. See Section 7.3, Analog Common for additional
details.
33
(8)
CREF-
See Pin 34.
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| TC7126ACLW713 | 1-CH DUAL-SLOPE ADC, PQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7126ACKW713 | 功能描述:LCD 驱动器 3.5 digit A/D RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7126ACLW | 功能描述:LCD 驱动器 3.5 digit A/D RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7126ACLW713 | 功能描述:LCD 驱动器 w/Hold RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7126ACPL | 功能描述:LCD 驱动器 Low Power RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7126AIPL | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS |
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