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TC7109

Status: In Production

Features:

  • Zero-Integrator Cycle for Fast Recovery from Input Overloads
  • Eliminates Cross-Talk in Multiplexed Systems
  • 12-Bit Plus Sign Integrating A/D Converter with Overrange Indication
  • True Differential Signal Input and Differential Reference Input
  • Low Noise: 15µVp-p Typ.
  • Input Current: 1pA Typ.
  • No Zero Adjustment Needed
  • UART Handshake Mode for Simple Serial Data Transmission
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The TC7109 is a 12-bit plus sign, CMOS low-power analog-to-digital converter (ADC). Only eight passive components and a crystal are required to form a complete dual-slope integrating ADC. The improved Voh source current TC7109 has features that make it an attractive per-channel alternative to analog multiplexing for many data acquisition applications. These features include typical input bias current of 1pA, drift of less than 1 µV/°C, input noise typically 15 µVp-p, and auto-zero. True differential input and reference allow measurement of bridge-type transducers such as load cells, strain gauges, and temperature transducers. In the handshake mode, the TC7109 will operate with industry-standard UARTs in controlling serial data transmission - ideal for remote data logging.

Additional Features
    • Zero-Integrator Cycle for Fast Recovery from Input Overloads
    • Eliminates Cross-Talk in Multiplexed Systems
    • 12-Bit Plus Sign Integrating A/D Converter with Overrange Indication
    • True Differential Signal Input and Differential Reference Input
    • Low Noise: 15µVp-p Typ.
    • Input Current: 1pA Typ.
    • No Zero Adjustment Needed
    • UART Handshake Mode for Simple Serial Data Transmission
Parametrics
Name
Value
Input Voltage Range (V)
-1.5 to +1.5
Sampling Rate
2 to 10
Input Channels
1
Resolution
12 bits plus sign bit
Sampling Rate (Conv/sec)
2 to 10
Interface
Serial Port
Supply Voltage Min (V)
4.5
Supply Voltage Max (V)
5.5

Documents

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Data Sheet

02/05/2013
359KB

Product Line Card


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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
TC7109ACKW
0.485400
3.895833
44
MQFP
10x10x2mm
Matte Tin
e3
TC7109CKW
0.485400
3.895833
44
MQFP
10x10x2mm
Matte Tin
e3
TC7109CKW713
0.485400
1.296667
44
MQFP
10x10x2mm
Matte Tin
e3
TC7109ACLW
2.375500
3.703704
44
PLCC
16.6x16.6x4.4mm
Matte Tin
e3
TC7109ACLW713
2.375500
3.400000
44
PLCC
16.6x16.6x4.4mm
Matte Tin
e3
TC7109CLW
2.375500
3.703704
44
PLCC
16.6x16.6x4.4mm
Matte Tin
e3
TC7109ACPL
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
TC7109CPL
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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