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TC826CBU PDF预览

TC826CBU

更新时间： 2024-11-29 22:20:03
品牌 Logo 应用领域
TELCOM 转换器输出元件
页数 文件大小 规格书
12页 117K
描述
A/D CONVERTER WITH BAR GRAPH DISPLAY OUTPUT

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中文翻译

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TC826CBU 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：PLASTIC, QFP-64Reach Compliance Code：unknown
风险等级：5.89最大模拟输入电压：2 V
最小模拟输入电压：0.02 V转换器类型：ADC, DUAL-SLOPE
JESD-30 代码：S-PQFP-G64JESD-609代码：e0
最大线性误差 (EL)：2.5%模拟输入通道数量：1
功能数量：1端子数量：64
最高工作温度：70 °C最低工作温度：
输出位码：BINARY封装主体材料：PLASTIC/EPOXY
封装代码：QFP封装等效代码：QFP64,.66SQ,32
封装形状：SQUARE封装形式：FLATPACK
电源：9 V认证状态：Not Qualified
子类别：Analog to Digital Converters最大压摆率：0.175 mA
标称供电电压：9 V表面贴装：YES
技术：BIPOLAR温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.8 mm端子位置：QUAD

TC826CBU 数据手册

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3
TC826  
A/D CONVERTER WITH BAR GRAPH DISPLAY OUTPUT  
FEATURES  
GENERAL DESCRIPTION  
■ Bipolar A/D Conversion  
■ 2.5% Resolution  
■ Direct LCD Display Drive  
In many applications a graphical display is preferred  
over a digital display. Knowing a process or system oper-  
ates, for example, within design limits is more valuable than  
adirectsystemvariablereadout. Abarormovingdotdisplay  
suppliesinformationpreciselywithoutrequiringfurtherinter-  
pretation by the viewer.  
The TC826 is a complete analog–to–digital converter  
with direct liquid crystal (LCD) display drive. The 40 LCD  
data segments plus zero driver give a 2.5% resolution bar  
display. Full–scale differential input voltage range extends  
from 20mV to 2V. The TC826 sensitivity is 500µv. A low drift  
35 ppm/°C internal reference, LCD backplane oscillator and  
driver, input polarity LCD driver, and overrange LCD driver  
make designs simple and low cost. The CMOS design  
required only 125µA from a 9V battery. In +5V systems a  
TC7660DCtoDCconvertercansupplythe–5Vsupply. The  
differential analog input leakage is a low 10pA.  
Two display formats are possible. The BAR mode  
display is like a ‘thermometer’ scale. The LCD segment  
driver that equals the input plus all below it are on. The DOT  
mode activates only the segment equal to the input. In either  
mode the polarity signal is active for negative input signals.  
An overrange input signal causes the display to flash and  
activates the overrange annunciator. A hold mode can be  
selected that freezes the display and prevents updating.  
The dual slope integrating conversion method with  
auto–zero phase maximizes noise immunity and eliminates  
zero–scaleadjustment potentiometers. Zero–scaledriftisa  
low 5 µV/°C. Conversion rate is typically 5 per second and  
is adjustable by a single external resistor.  
A compact, 0.5" square, flat package minimizes PC  
board area. The high pin count LSI package makes multi-  
plexed LCD displays unnecessary. Low cost, direct drive  
LCD displays offer the widest viewing angle and are readily  
available. A standard display is available now for TC826  
prototyping work.  
■ ‘Thermometer’ Bar or Dot Display  
■ 40 Data Segments Plus Zero  
■ Overrange Plus Polarity Indication  
■ Precision On–Chip Reference ................ 35ppm/°C  
■ Differential Analog Input  
■ Low Input Leakage .......................................... 10pA  
■ Display Flashes on Overrange  
■ Display Hold Mode  
■ Auto–Zero Cycle Eliminates Zero Adjust  
Potentiometer  
■ 9V Battery Operation  
■ Low Power Consumption ............................ 1.1mW  
■ 20mV to 2.0 V Full–Scale Operation  
■ Non–Multiplexed LCD Drive for Maximum  
Viewing Angle  
PIN CONFIGURATION  
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49  
NC  
1
2
48  
47  
NC  
ANALOG  
COMMON  
BAR 30  
BAR 29  
BAR 28  
BAR 27  
BAR 26  
BAR 25  
BAR 24  
BAR 23  
+IN  
– IN  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
3
4
REF IN  
5
6
+
C
REF  
–
REF  
C
7
V
8
DD  
TC826CBU  
V
9
BUF  
C
10  
11  
AZ  
BAR 22  
BAR 21  
BAR 20  
BAR 19  
BAR 18  
BAR 17  
BAR 16  
V
INT  
V
SS  
12  
13  
14  
15  
OSC1  
OSC2  
BP  
36  
35  
34  
33  
ORDERING INFORMATION  
BAR 0 16  
Part No.  
Package  
Temperature  
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32  
TC826CBU  
64–Pin PFP  
0°C to +70°C  
TC826-6 11/6/96  
TELCOM SEMICONDUCTOR, INC.  
3-171  
1234567...12

中文翻译

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