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參數資料
| 型號： | TC818ACBU |
| 元件分類： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁數： | 1/24頁 |
| 文件大?。?/td> | 528K |
| 代理商： | TC818ACBU |
2005 Microchip Technology Inc.
DS21475C-page 1
TC818A
Features
Auto-Ranging Analog-to-Digital Converter with
3-1/2 Digit Display
Annunciator Outputs Permit Customizing of LCD
Auto-Range Operation for AC and DC Voltage
and Resistance Measurements
Two User Selected AC/DC
Current Ranges: 20mA and 200mA
22 Operating Ranges: 9 DC/AC Voltage
4 AC/DC Current
9 Resistance and Low Power Ohms
Display Hold Function
3-1/2 Digit Resolution in Auto-Range
Mode: 1/2000
Extended Resolution in Manual Range
Mode: 1/3000
Internal AC-to-DC Conversion Op Amp
Triplex LCD Drive for Decimal Points, Digits,
Bar Graphs, and Annunciators
Continuity Detection and Piezoelectric
Transducer Driver
Low Drift Internal Reference: 75ppm/°C
9V Battery Operation: 10mW
Low Battery Detection and LCD Annunciator
Device Selection Table
General Description
The TC818A is an integrating analog-to-digital con-
verter (ADC) with a 3-1/2 digit numeric LCD driver,
automatic ranging, and single 9V battery operation.
The numeric display provides 0.05% resolution and a
full set of annunciators that spell out the TC818A's
many operating modes.
Automatic range selection is provided for both voltage
(DC and AC) and ohms (high and low power) measure-
ments.
Expensive
and
bulky
mechanical
range
switches are not required. Five full scale ranges are
available, with automatic selection of external volt/ohm
attenuators over a 1 to 10,000 range. Two current
ranges, 20mA and 200mA, can be manually selected.
The auto-range feature can be bypassed, allowing
input attenuator selection through a single line input.
During Manual mode operation, resolution is extended
to 3000 counts full scale. Extended resolution is also
available during 2000k
Ω and 2000V full scale auto-
range operation. The extended range operation is indi-
cated by a flashing 1 MSD and by the fully extended bar
graph.
The TC818A includes an AC-to-DC converter for AC
voltage and current measurements. Only external
diodes/resistors/capacitors are required. Other fea-
tures include a Memory mode, low battery detection,
display HOLD input, and continuity buzzer driver.
The 3-1/2 digit numeric display includes a full set of
annunciators. Decimal points are adjusted as auto-
matic or manual range changes occur, and Voltage,
Current, and Ohms Operating modes are displayed.
Additional annunciators are activated for manual, auto,
memory, HOLD, AC, low power ohms, and low battery
conditions.
The TC818A is available in a surface mounted 64-pin
flat package. Combining a numeric display driver, sin-
gle 9V battery operation, internal range switching, and
compact surface mounting, the TC818A is ideal for
advanced portable instruments.
Part Number
Package
Operating
Temperature Range
TC818ACBU
64-Pin PQFP
0
°C to +70°C
Auto-Ranging Analog-to-Digital Converter
with 3-1/2 Digit Display
Obsolete Device
相關PDF資料 |
PDF描述 |
|---|---|
| TC818ACBUTR | 1-CH DUAL-SLOPE ADC, PQFP64 |
| TC818DCOP | CONVERTER SUBSYSTEM ADC, PARALLEL ACCESS, PDSO20 |
| TC818ACBQ | CONVERTER SUBSYSTEM ADC, PARALLEL ACCESS, PQFP60 |
| TC820C/LW | 1-CH 3-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44 |
| TC820C/PL | 1-CH 3-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40 |
相關代理商/技術參數 |
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| TC820CKW713 | 功能描述:LCD 驅動器 3-3/4 A/D Converter RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量: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 |
| TC820CLW | 功能描述:LCD 驅動器 3-3/4 A/D Converter RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量: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 |
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