参数资料
| 型号： | ICL7136CPL |
| 厂商： | Intersil |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3.5 DIGIT LCD 40-DIP |
| 标准包装： | 9 |
| 显示器类型： | LCD |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电流 - 电源： | 70µA |
| 电源电压： | 9V |
| 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-DIP |
| 包装： | 管件 |
| 其它名称： | ICL7136CPLIS |
ICL7136
Pin Descriptions
PIN NUMBER
44 PIN
40 PIN DIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
FLATPACK
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
34
35
36
37
38
39
NAME
V+
D1
C1
B1
A1
F1
G1
E1
D2
C2
B2
A2
F2
E2
D3
B3
F3
E3
AB4
POL
BP/GND
G3
A3
C3
G2
V -
INT
BUFF
A-Z
IN LO
IN HI
FUNCTION
Supply
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Supply
Output
Output
Input
Input
DESCRIPTION
Power Supply.
Driver Pin for Segment “D” of the display units digit.
Driver Pin for Segment “C” of the display units digit.
Driver Pin for Segment “B” of the display units digit.
Driver Pin for Segment “A” of the display units digit.
Driver Pin for Segment “F” of the display units digit.
Driver Pin for Segment “G” of the display units digit.
Driver Pin for Segment “E” of the display units digit.
Driver Pin for Segment “D” of the display tens digit.
Driver Pin for Segment “C” of the display tens digit.
Driver Pin for Segment “B” of the display tens digit.
Driver Pin for Segment “A” of the display tens digit.
Driver Pin for Segment “F” of the display tens digit.
Driver Pin for Segment “E” of the display tens digit.
Driver pin for segment “D” of the display hundreds digit.
Driver pin for segment “B” of the display hundreds digit.
Driver pin for segment “F” of the display hundreds digit.
Driver pin for segment “E” of the display hundreds digit.
Driver pin for both “A” and “B” segments of the display thousands digit.
Driver pin for the negative sign of the display.
Driver pin for the LCD backplane/Power Supply Ground.
Driver pin for segment “G” of the display hundreds digit.
Driver pin for segment “A” of the display hundreds digit.
Driver pin for segment “C” of the display hundreds digit.
Driver pin for segment “G” of the display tens digit.
Negative power supply.
Integrator amplifier output. To be connected to integrating capacitor.
Input buffer amplifier output. To be connected to integrating resistor.
Integrator amplifier input. To be connected to auto-zero capacitor.
Differential inputs. To be connected to input voltage to be measured. LO and HI
designators are for reference and do not imply that LO should be connected to lower
potential, e.g., for negative inputs IN LO has a higher potential than IN HI.
32
40
COMMON
Supply/
Internal voltage reference output.
Output
33
34
41
42
C REF -
C REF +
Connection pins for reference capacitor.
35
36
37
38
39
40
43
44
3
4
6
7
REF LO
REF HI
TEST
OSC3
OSC2
OSC1
Input
Input
Output
Output
Input
Input pins for reference voltage to the device. REF HI should be positive reference to
REF LO.
Display test. Turns on all segments when tied to V+.
Device clock generator circuit connection pins.
Detailed Description
Analog Section
Figure 2 shows the Analog Section for the ICL7136. Each
measurement cycle is divided into four phases. They are (1)
auto-zero (A-Z), (2) signal integrate (INT) and (3) de-
integrate (DE), (4) zero integrate (ZI).
Auto-Zero Phase
During auto-zero three things happen. First, input high and low
are disconnected from the pins and internally shorted to analog
6
COMMON. Second, the reference capacitor is charged to the
reference voltage. Third, a feedback loop is closed around the
system to charge the auto-zero capacitor C AZ to compensate
for offset voltages in the buffer amplifier, integrator, and
comparator. Since the comparator is included in the loop, the A-
Z accuracy is limited only by the noise of the system. In any
case, the offset referred to the input is less than 10 μ V.
Signal Integrate Phase
During signal integrate, the auto-zero loop is opened, the
internal short is removed, and the internal input high and low
FN3086.6
July 21, 2005
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相关代理商/技术参数 |
参数描述 |
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| ICL7136CPL+ | 功能描述:模数转换器 - ADC Low-Pwr 3 1/2 Digit ADC w/Direct LCD Dvr RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ICL7136CPL+3 | 功能描述:模数转换器 - ADC Low-Pwr 3 1/2 Digit ADC w/Direct LCD Dvr RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ICL7136CPL-3 | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ICL7136CPLZ | 功能描述:模数转换器 - ADC ADC 3 5 DIG LW PWR 7106 COM RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ICL7136CQ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 3-1/2-Digit |
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