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TC7117A

Status: In Production

Features:

  • 20 ppm/°C Typ.
  • Display Hold Function
  • Directly Drives LED Display
  • Guaranteed Zero Reading with Zero Input
  • Auto-Zero Cycle Eliminates Need for Zero Adjustment Potentiometer
  • True Polarity Indication for Precision Null Applications
  • High Impedance CMOS Differential Inputs: 1012 Ohm
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Overview
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Development Environment
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RoHS Information
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Device Overview

Summary

The TC7117A is a 3½ digit CMOS analog-to-digital converter (ADC) containing all the active components necessary to construct a 0.05% resolution measurement system. Seven-segment decoders, polarity and digit drivers, voltage reference, and clock circuit are integrated on-chip. The TC7117A drives common anode light emitting diode (LED) displays directly with an 8mA drive current per segment. These devices incorporate a display hold (HLDR) function. The TC7117A reduces linearity error to less than 1 count. Roll-over error (the difference in readings for equal magnitude but opposite polarity input signals) is below ±1 count. High-impedance differential inputs offer 1 pA leakage current and a 1012 Ohm input impedance. The auto-zero cycle guarantees a zero display reading with a 0V input. The TC7117A features a precision, low-drift internal reference, and is functionally identical to the TC7117.

Additional Features
    • Low Temperature Drift Internal Reference
      • 20 ppm/°C Typ.
    • Display Hold Function
    • Directly Drives LED Display
    • Guaranteed Zero Reading with Zero Input
    • Auto-Zero Cycle Eliminates Need for Zero Adjustment Potentiometer
    • True Polarity Indication for Precision Null Applications
    • High Impedance CMOS Differential Inputs: 1012 Ohm
Parametrics
Name
Value
Supply Voltage (V)
5
Power (mW)
10
Hold Function
Yes
Resolution (Digits)
3
Resolution (Counts)
2000
Display Type
LED
Temp. Range (°C)
-25 to 85

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
TC7117ACKW
0.485400
3.895833
44
MQFP
10x10x2mm
Matte Tin
e3
TC7117ACPT713
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
TC7117ACLW
2.375500
3.703704
44
PLCC
16.6x16.6x4.4mm
Matte Tin
e3
TC7117ACPL
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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