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參數(shù)資料
| 型號： | TC7126ACKW |
| 元件分類： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 20/22頁 |
| 文件大?。?/td> | 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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| TC7126CLW | 1-CH DUAL-SLOPE ADC, PQCC44 |
| TC7126CKW | 1-CH DUAL-SLOPE ADC, PQFP44 |
| TC7126ACLW713 | 1-CH DUAL-SLOPE ADC, PQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC7126ACKW713 | 功能描述:LCD 驅(qū)動器 3.5 digit A/D RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| TC7126ACLW | 功能描述:LCD 驅(qū)動器 3.5 digit A/D RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| TC7126ACLW713 | 功能描述:LCD 驅(qū)動器 w/Hold RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| TC7126ACPL | 功能描述:LCD 驅(qū)動器 Low Power RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| TC7126AIPL | 制造商:TELCOM 制造商全稱:TelCom Semiconductor, Inc 功能描述:3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS |
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