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MCP9700 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP9700 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 18 page  © 2005 Microchip Technology Inc. DS21942A-page 1 MCP9700/01 Features • Tiny Analog Temperature Sensor • Available Packages: SC70-5 • Wide Temperature Measurement Range: - -40°C to +125°C • Accuracy: ±4°C (max.), 0°C to +70°C • Optimized for Analog-to-Digital Converters (ADCs): - MCP9700: 10.0 mV/°C (typ.) - MCP9701: 19.5 mV/°C (typ.) • Wide Operating Voltage Range: - MCP9700: VDD = 2.3V to 5.5V - MCP9701: VDD = 3.1V to 5.5V • Low Operating Current: 6 µA (typ.) • Optimized to Drive Large Capacitive Loads Typical Applications • Hard Disk Drives and Other PC Peripherals • Entertainment Systems • Home Appliance • Office Equipment • Battery Packs and Portable Equipment • General Purpose Temperature Monitoring Description The MCP9700/01 low-cost, low-power and tiny tem- perature sensor family converts temperature to an analog voltage. It provides an accuracy of ±4°C from 0°C to +70°C while consuming 6 µA (typ.) of operating current. The MCP9700/01 provides a low-cost solution for applications that require measurement of a relative change of temperature. When measuring relative change in temperature from 25°C, an accuracy of ±1°C (typ.) can be realized from 0°C to 70°C. This accuracy can also be achieved by applying system calibration at 25°C. Unlike resistive sensors such as thermistors, this family does not require a signal conditioning circuit. The voltage output pin can be directly connected to an ADC input of a microcontroller. The MCP9700 and MCP9701 temperature coefficients are scaled to provide a 1° C/bit resolution for an 8-bit ADC with a reference voltage of 2.5V and 5V, respectively. In addition, this family is immune to the effects of parasitic capacitance and can drive large capacitive loads. This provides Printed Circuit Board (PCB) layout design flexibility by enabling the device to be remotely located from the microcontroller. Adding some capacitance at the output also helps the output transient response by reducing overshoots or undershoots. However, capacitive load is not required for sensor output stability. Package Type Typical Application Circuit GND VDD VOUT NC 4 1 2 3 5 SC70-5 NC GND VDD MCP9700/01 PICmicro® Microcontroller ANI MCLR VDD 10 k Ω VSS VDD VOUT Cbypass VDD 0.1 µF Low-Power Voltage Output Temperature Sensor |
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Similar Description - MCP9700 |
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