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参数资料
| 型号： | TC7117CPLG |
| 元件分类： | ADC |
| 英文描述： | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 22/24页 |
| 文件大小： | 410K |
| 代理商： | TC7117CPLG |
2006 Microchip Technology Inc.
DS21457C-page 7
TC7116/A/TC7117/A
34
42
CREF+A 0.1μF capacitor is used in most applications. If a large Common mode voltage
exists (for example, the VIN- pin is not at analog common), and a 200mV scale is
used, a 1
μF capacitor is recommended and will hold the rollover error to
0.5 count.
35
43
V+
Positive Power Supply Voltage.
36
44
VREF+
The analog input required to generate a full scale output (1999 counts). Place
100mV between Pins 32 and 36 for 199.9mV full scale. Place 1V between
Pins 35 and 36 for 2V full scale. See Section 4.6 “Reference Voltage”, Refer-
ence Voltage.
37
3
TEST
Lamp test. When pulled HIGH (to V+), all segments will be turned on and the dis-
play should read -1888. It may also be used as a negative supply for externally
generated decimal points. See Section 3.1.7 “Test”, TEST for additional infor-
mation.
38
4
OSC3
See Pin 40.
39
6
OSC2
See Pin 40.
40
7
OSC1
Pins 40, 39, 38 make up the oscillator section. For a 48kHz clock (3 readings per
section), connect Pin 40 to the junction of a 100k
Ω resistor and a 100pF capaci-
tor. The 100k
Ω resistor is tied to Pin 39 and the 100pF capacitor is tied to Pin 38.
TABLE 2-1:
PIN FUNCTION TABLE (CONTINUED)
Pin Number
(40-Pin PDIP)
(40-Pin CERDIP)
Pin Number
(44-Pin PQFP)
Symbol
Description
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| TC7117IJL | 功能描述:LED显示驱动器 3-1/2 Digit A/D w/ Hold RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TC7117RCPL | 功能描述:LED显示驱动器 w/Hold RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TC711A | 制造商:Thomas & Betts 功能描述:Fittings Connector 0.5inch Steel |
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