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TC1028

Status: End of Life

Features:

  • •Combines Two Comparators and a Voltage Reference in a Single Package •Optimized for Single-Supply Operation •Ultra Low Input Bias Current ...... Less than 100 pA •Low Quiescent Current .......... Operating 10 mA (Typ.) Shutdown 0.05mA (Typ.) •Rail-to-Rail Inputs and Outputs •Operates Down to VDD = 1.8V
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Device Overview

Summary

The TC1028 is a mixed-function device combining two comparators and a voltage reference in a single 8-pin package. The inverting input of comparator A and the non-inverting input of comparator B are internally connected to the reference. This increased integration allows the user to replace two packages, which saves space, lowers supply current and increases system performance. The TC1028 operates from two 1.5V alkaline cells down to VDD = 1.8V. It requires only 10µA, typical, of supply current, which significantly extends battery life. A low-power shutdown input (SHDN) disables the entire chip, placing all outputs in a high-impedance state. This mode saves battery power and allows comparator outputs to share common analog lines (multiplexing). Shutdown current is 0.05A, typical. Rail-to-rail inputs and outputs allow operation from low supply voltages with large input and output signal swings. Packaged in an 8-Pin MSOP, the TC1028 is ideal for applications requiring low-power level detection.

Additional Features
  • Combines Two Comparators and a Voltage Reference in a Single Package
  • Optimized for Single-Supply Operation
  • Ultra Low Input Bias Current ...... Less than 100 pA
  • Low Quiescent Current .......... Operating 10 mA (Typ.) Shutdown 0.05mA (Typ.)
  • Rail-to-Rail Inputs and Outputs
  • Operates Down to VDD = 1.8V
Parametrics
Name
Value
Temp Range (°C)
-40°C to +85°C
IQ Typical (µA))
10
Vref (V)
1.2
Vos Max (µV)
5000
Typical Propagation Delay (ns)
4000
# per Package
2
Operating Voltage Range (V)
1.8 to 5.5

Documents

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Data Sheet

11/08/2005
259KB

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Development Environment

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Demo & Evaluation Boards
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board ( SOIC8EV )

This is a blank PCB that allows the operation of Microchip Technology’s 8-pin devices to be easily evaluated. Each device pin is connected to a pull-up resistor, a pull-down resistor, an in-line resistor, and a loading capacitor. The PCB pads allow through hole or surface mount connectors to be installed to ease connection to the board. Additional passive component footprints are on the...

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