MCP9701AT-E/LT Microchip Technology Inc., MCP9701AT-E/LT Datasheet

MCP9701AT-E/LT

Manufacturer Part Number

MCP9701AT-E/LT

Description

LINEAR ACTIVE THERMISTER (TM) IC (19.53MV/OC)

Manufacturer

Microchip Technology Inc.

Type

Temperaturer

Datasheet

1.MCP9700AT-ELT.pdf (5 pages)

Specifications of MCP9701AT-E/LT

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

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Features

• Tiny Analog Temperature Sensor

• Available Packages: SC-70-5, SOT-23-5, TO-92-3

• Wide Temperature Measurement Range:

• Accuracy:

• Optimized for Analog-to-Digital Converters

• Wide Operating Voltage Range:

• Low Operating Current: 6 µA (typical)

• 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

Package Type

- -40°C to +125°C

- ±2°C (max.), 0°C to +70°C (MCP9700A/9701A)

- ±4°C (max.), 0°C to +70°C (MCP9700/9701)

(ADCs):

- 10.0 mV/°C (typical) MCP9700/9700A

- 19.5 mV/°C (typical) MCP9701/9701A

- V

= 2.3V to 5.5V MCP9700/9700A

= 3.1V to 5.5V MCP9701/9701A

MCP9700/9701

3-Pin TO-92

OUT

Low-Power Linear Active Thermistor™ ICs

Only

GND

Bottom

1 2 3

View

MCP9700/9700A

MCP9701/9701A

3-Pin SOT-23

GND

MCP9700/9700A

MCP9701/9701A

OUT

Description

The MCP9700/9700A and MCP9701/9701A family of

Linear Active Thermistor™ Intergrated Circuit (IC) is an

analog temperature sensor that converts temperature

to analog voltage. It’s a low-cost, low-power sensor

with an accuracy of ±2°C from 0°C to +70°C

(MCP9700A/9701A)

(MCP9700/9701) while consuming 6 µA (typical) of

operating current.

Unlike resistive sensors (such as thermistors), the

Linear Active Thermistor IC does not require an

additional signal-conditioning circuit. Therefore, the

biasing circuit development overhead for thermistor

solutions can be avoided by implementing this low-cost

device. The voltage output pin (V

connected to the ADC input of a microcontroller. The

MCP9700/9700A and MCP9701/9701A 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.

The MCP9700/9700A and MCP9701/9701A provide a

low-cost solution for applications that require measure-

ment of a relative change of temperature. When mea-

suring relative change in temperature from +25°C, an

accuracy of ±1°C (typical) can be realized from 0°C to

+70°C. This accuracy can also be achieved by applying

system calibration at +25°C.

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

undershoots. However, capacitive load is not required

for sensor output stability.

response

GND

OUT

±4°C

MCP9700/9700A

MCP9701/9701A

5-Pin SC-70

reducing

from

OUT

0°C

DS21942D-page 1

) can be directly

overshoots

+70°C

Related parts for MCP9701AT-E/LT

MCP9701AT-E/LT Summary of contents

Page 1

... Bottom View GND DD OUT © 2007 Microchip Technology Inc. MCP9700/9700A MCP9701/9701A Description The MCP9700/9700A and MCP9701/9701A family of Linear Active Thermistor™ Intergrated Circuit (IC analog temperature sensor that converts temperature to analog voltage. It’s a low-cost, low-power sensor with an accuracy of ±2°C from 0°C to +70°C (MCP9700A/9701A) ± ...

Page 2

... MCP9700A/9701A °C MCP9700A °C MCP9701A °C MCP9700/9701 °C MCP9700 °C MCP9701 mV MCP9700/9700A mV MCP9701/9701A mV/°C MCP9700/9700A mV/°C MCP9701/9701A ° 0°C to +70°C (Note 2) A µA Ω 100 µ 500 Hz OUT Ω 0°C to +70° 100 µA OUT © 2007 Microchip Technology Inc. ...

Page 3

... Storage Temperature Range Thermal Package Resistances Thermal Resistance, 5LD SC-70 Thermal Resistance, 3LD SOT-23 Thermal Resistance, 3LD TO-92 Note: Operation in this range must not cause T © 2007 Microchip Technology Inc. = -40°C to +125°C and No load -10°C to +125°C and No load. A Sym Min ...

Page 4

Page 5

... Linear Active Thermistor™ IC, 3LD TO-92 package. c) MCP9701T-E/OT: Linear Active Thermistor™ IC, Tape and Reel, 3LD SOT-23 package. d) MCP9701AT-E/LT: Linear Active Thermistor™ IC, Tape and Reel, 5LD SC-70 package. e) MCP9701AT-E/OT: Linear Active Thermistor™ IC, Tape and Reel, 3LD SOT-23 package. DS21942D-page 17 ...

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