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| 型号： | TC7107CPL |
| 厂商： | Microchip Technology |
| 文件页数： | 20/34页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DGT LED DVR 40-DIP |
| 标准包装： | 10 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电流 - 电源： | 800µA |
| 电源电压： | 5V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 40-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 673 (CN2011-ZH PDF) |
| 其它名称： | 158-1129 158-1129-ND |
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TC7106/A/TC7107/A
10.0
10.1
TYPICAL APPLICATIONS
Decimal Point and Annunciator
Drive
input and the voltage across the known resistor is
applied to the reference input. If the unknown equals
the standard, the display will read 1000.
The displayed reading can be determined from the
following expression:
The TEST pin is connected to the internally generated
Displayed (Reading) = ----------------------------- × 1000
digital logic supply ground through a 500 Ω resistor. The
TEST pin may be used as the negative supply for
external CMOS gate segment drivers. LCD display
annunciators for decimal points, low battery indication,
or function indication may be added without adding an
additional supply. No more than 1 mA should be
supplied by the TEST pin; its potential is approximately
5V below V+ (see Figure 10-1 ).
EQUATION 10-1:
R UNKNOWN
R STANDARD
The display will over range for:
R UNKNOWN ≥ 2 x R STANDARD
V REF + V+
V +
R STANDARD
V REF -
V+
TC7106A
BP 21
37
TEST
4049
GND
To LCD
Decimal
Point
To LCD
Backplane
R UNKNOWN
FIGURE 10-2:
V IN +
TC7106A
V IN -
Analog
Common
Low Parts Count
LCD Display
Ratiometric Resistance Measurement.
V+
V+
BP
160 k Ω
300 k Ω
300k Ω
+
9V
TC7106A
Decimal
Point
Select
To LCD
Decimal
Point
1N4148
Sensor
R 1
50 k Ω
V+
V IN -
V IN +
V-
TC7106A
TEST
4030
GND
R 2
50 k Ω
V REF +
V FS = 2V
V REF -
FIGURE 10-1:
Decimal Point Drive Using
Common
Test as Logic Ground.
10.2
Ratiometric Resistance
FIGURE 10-3:
Temperature Sensor.
Measurements
The true differential input and differential reference
make ratiometric reading possible. Typically in a
ratiometric operation, an unknown resistance is
measured, with respect to a known standard
resistance. No accurately defined reference voltage is
needed.
The unknown resistance is put in series with a known
standard and a current passed through the pair. The
voltage developed across the unknown is applied to the
DS21455D-page 20
? 2008 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7107CPL | 制造商:Microchip Technology Inc 功能描述:Leaded Process Compatible:No |
| TC7107CPL | 制造商:Microchip Technology Inc 功能描述:3.5 DIGIT ADC CMOS 7107 DIP40 制造商:Microchip Technology Inc 功能描述:3.5 DIGIT ADC, CMOS, 7107, DIP40 制造商:Microchip Technology Inc 功能描述:3.5 DIGIT ADC, CMOS, 7107, DIP40; Resolution (Bits):3.5bit; Supply Voltage Type:Single; Supply Voltage Max:5V; Supply Current:800A; Digital IC Case Style:DIP; No. of Pins:40; Input Channel Type:Differential; Data Interface:Parallel;;RoHS Compliant: Yes |
| TC7107IJL | 功能描述:LED显示驱动器 3-1/2 Digit A/D w/ LED Driver 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 |
| TC7107IPL | 功能描述:LED显示驱动器 w/LED Driver 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 |
| TC7107RCPL | 功能描述:LED显示驱动器 w/LED Driver 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 |
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