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Description : Precision Temperature Sensor with Beta Compensation (for <45 nm Geometries)

Precision Temperature Sensor with Beta Compensation (for <45 nm Geometries)

The ADT7421 is a dual−channel digital thermometer and under/overTemperature alarm, intended for use in PCs and thermal
management systems. It is pin−and register−compatible with the ADM1032, ADT7461 and ADT7461A. The ADT7421 includes Beta Cancellation Technology. This enables accurate measurement of Temperature from very small geometry
(45 nm) processes. Significant variations in the Beta factor can be observed when different currents are applied to transistors embedded in small geometry CPU’s. This leads to large Temperature errors. The ADT7421 automatically cancels the effects of error induced by Beta variations.

Features
•On−Chip and Remote Temperature Sensor
•0.25°C Resolution on Remote Channel
•1°C Resolution on Local Channel
•Automatically Cancels the Effect of Beta Variation in Thermal Transistors on Small Geometry CPU’s
•Automatically Cancels Up to 50 (Typical) of Resistance in Series with Remote Transistor
•Extended, Switchable Temperature Measurement Range  0°C to +125°C (default) or −40°C to +125°C
•Pin−and Register−Compatible with ADM1032, ADT7461, ADT7461A, EMC1402, and aSC7525
•2−Wire SMBus Serial Interface with SMBus Alert Support
•Programmable Over/UnderTemperature Limits
•Offset Registers for System Calibration
•Up to Two OverTemperature Fail−Safe THERMOutputs
•Small 8−lead MSOP and SOP Packages
•These are Pb−Free Devices

Applications
•Desktop and Notebook Computers
•Industrial Controllers
•Smart Batteries
•Automotive

Part Name(s) : AK8998 AK8998W AK8998D
AKM
Asahi Kasei Microdevices
Description : Pressure Sensor interface IC that features Compensation for Temperature drift and Sensor variation

The AK8998 is a pressure Sensor interface IC that features Compensation for Temperature drift and Sensor variation. It is designed to excite and interface to a bridge Sensor. Variations in the Sensor can be corrected via Compensation values stored in integrated non-volatile memory (EEPROM). Compensation values are obtained from measurement results for a set of offset voltages and Temperature drift, along with a set of bridge voltages and Temperature drift, including characteristics of the AK8998. The AK8998 is available in a 16-pin QFN package, in wafer form and in a tray.

SMSC
SMSC -> Microchip
Description : BBUS Compliant Dual Temperature Monitor with Beta Compensation

GENERAL DESCRIPTION
The EMC1212 is a Temperature Sensor that communicates with a host over a single-wire SMSC BudgetBus™ Sensor Interface. The EMC1212 monitors one internal diode and one remote Temperature zone. Packaged in a SOT23-5, the EMC1212 provides an accurate, low-cost, low-current, solution for critical Temperature monitoring in applications such as embedded systems or computers. When used in combination with an SMSC Super I/O host, such as a keyboard controller, a complete thermal management system is created. A power down mode extends battery life in portable applications. The internal 11-bit sigma delta Temperature-to-digital converter provides superb linearity, high accuracy and excellent noise immunity.

FEATURES
■ Single Wire BBUS Interface
■ Resistance Error Correction
Beta Compensation
■ External Temperature Monitor
    — 0.125°C resolution
    — ±1°C Accuracy 60°C to 100°C
    — Diode Fault Reporting
■ Internal Temperature Monitor
    — Range 0°C to +85°C
    — 0.125°C resolution
    — ±1.5°C Accuracy 50°C to 70°C
■ Supply:
    — 3.0V to 3.6V
    — <5uA in Standby

APPLICATIONS
■ Desktop and Notebook Computers
■ Hardware Management

Description : 1°C Temperature Sensor with Beta Compensation

GENERAL DESCRIPTION
The EMC1402 is a high accuracy, low cost, System Management Bus (SMBus) Temperature Sensor. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to support 90nm and 65nm CPU diodes) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications.

FEATURES
■ Support for 90nm and 65nm CPU diodes
■ Pin compatible with ADM1032, MAX6649, and LM99
■ Automatically determines external diode type and optimal settings
■ Resistance Error Correction
■ External Temperature Monitors
    — ±1°C Accuracy (60°C < TDIODE < 100°C)
    — 0.125°C Resolution
■ Internal Temperature Monitor
    — ±2°C accuracy
■ 3.3V Supply Voltage
■ Programmable Temperature limits for ALERT and THERM
■ Small 8-pin MSOP Lead-free RoHS Compliant Package

APPLICATIONS
■ Notebook Computers
■ Desktop Computers
■ Industrial
■ Embedded applications

Description : NTC Thermistors Temperature Sensor and Compensation 0805 (2012) Size

NTC Thermistors
Temperature Sensor and Compensation 0805 (2012) Size

Chip NTC Thermistors have Ni barrier termination and provide excellent solderability and offer high stability in environment by unique inner construction.

Features
1. Excellent solderability and high stability in environment
2. Excellent long time aging stability
3. High accuracy in resistance and B-constant
4. Flow / Refl ow soldering possible
5. Same B-Constant in the same resistance in the three sizes (0805 size / 0603 size / 0402 size)
   Easy to use smaller size in the circuits
6. NCP series are recognized by UL/cUL.
   (UL1434, File No.E137188)

Applications
1. Temperature Compensation for transistor, IC and crystal oscillator in mobile communications
2. Temperature Sensor for rechargeable batteries
3. Temperature Compensation of LCD
4. Temperature Compensation in general use of electric circuits

Part Name(s) : S-8120ANP
SII
Seiko Instruments Inc
Description : LOW-VOLTAGE C-MOS HIGH-Precision Temperature Sensor IC

LOW-VOLTAGE C-MOS HIGH-Precision Temperature Sensor IC

The S-8120AMP is a ultra-small packaged high-Precision Temperature Sensor IC that outputs voltage with a Temperature coefficient of - 8.5mV/°C and a Temperature accuracy of ±2.5°C. A Temperature Sensor, a constant current circuit and an operational amplifier are integrated on a single chip to be able to operate at 2.4V. The operating Temperature ranges from -40°C to +100°C. The S-8120AMP is superior in linearity over conventional Temperature Sensors like thermistors. It can be applied to an ever expanding wide range of applications that call for high-Precision thermal control.

Features
•  Temperature accuracy : ±2.5°C ( -30°C ~ +100°C)
•  Linear Output Voltage : -8.5mV/°C
   Ta = - 30°C : 1.823 V typ.
   Ta = +30°C : 1.326 V typ.
   Ta = + 100°C : 0.718 V typ.
•  Nonlinearity : ±0.5 % typ. ( -20°C ~ +80°C )
•  Vss standard output
•  Low voltage operation : Vdd min. = 2.4 V
•  Low current consumption : Idd typ. = 4.5mA (+25°C)
•  Ultra-small plastic package ( SC-82AB )

Description : NTC Thermistors Temperature Sensor and Compensation 0402 (1005) Size

NTC Thermistors
Temperature Sensor and Compensation 0402 (1005) Size

Chip NTC Thermistor have Ni barrier termination and provide excellent solderability and offer high stability in environment by unique inner construction.

Features
1. Excellent solderability and high stability in environment
2. Excellent long time aging stability
3. High accuracy in resistance and B-Constant
4. Refl ow soldering possible
5. Same B-constant in the same resistance in the three sizes (0805 size / 0603 size / 0402 size)
   Easy to use smaller size in the circuits
6. NCP series are recognized by UL/cUL.
   (UL1434, File No.E137188)

Applications
1. Temperature Compensation for transistor, IC and crystal oscillator in mobile communications
2. Temperature Sensor for rechargeable batteries
3. Temperature Compensation of LCD
4. Temperature Compensation in general use of electric circuits

Description : 0.1%-Accurate Signal Conditioner for Piezoresistive Sensor Compensation

General Description
The MAX1457 is a highly integrated analog-Sensor signal processor optimized for piezoresistive Sensor calibration and Compensation. It includes a programmable current source for Sensor excitation, a 3-bit programmable-gain amplifier (PGA), a 12-bit ADC, five 16-bit DACs, and an uncommitted op amp. Achieving a total error factor within 0.1% of the Sensor’s repeatability errors, the MAX1457 compensates offset, full-span output (FSO), offset TC, FSO TC, and full-span output nonlinearity of silicon piezoresistive Sensors.

Features
♦ High Accuracy (within ±0.1% of Sensor’s repeatable errors)
♦ Compensates Offset, Offset TC, FSO, FSO TC, Temperature/Pressure Nonlinearity
♦ Rail-to-Rail® Analog Output for Calibrated, Temperature-Compensated Pressure Measurements
♦ Programmable Sensor Excitation Current
♦ SPI/MicroWire-Compatible Serial Interface
♦ Fast Signal-Path Settling Time (<1ms)
♦ Accepts Sensor Outputs from 5mV/V to 30mV/V
♦ Pin-Compatible with MCA7707

Description : High Temperature Accuracy Integrated Silicon Pressure Sensor for Measuring Absolute Pressure, On-Chip Signal Conditioned, Temperature Compensated and Calibrated

High Temperature Accuracy Integrated Silicon Pressure Sensor for Measuring Absolute Pressure, On-Chip Signal Conditioned, Temperature Compensated and Calibrated

The Freescale MPXxx6400A series Sensor integrates on-chip, bipolar op amp circuitry and thin film resistor networks to provide a high output signal and Temperature Compensation. The small form factor and high reliability of on-chip integration make the Freescale pressure Sensor a logical and economical choice for the system designer.
The MPXxx6400A series piezoresistive transducer is a state-of-the-art, monolithic, signal conditioned, silicon pressure Sensor. This Sensor combines advanced micromachining techniques, thin film metallization, and bipolar semiconductor processing to provide an accurate, high level analog output signal that is proportional to applied pressure.

Features
• Improved Accuracy at High Temperature
• Available in Small and Super Small Outline Packages
• 1.5% Maximum Error over 0° to 85°C
• Ideally suited for Microprocessor or Microcontroller-Based Systems
Temperature Compensated from -40° to +125°C
• Durable Thermoplastic (PPS) Surface Mount Package

Application Examples
• Industrial Controls
• Engine Control/Manifold Absolute Pressure (MAP)/Liquefied Petroleum Gas (LPG)

Freescale
Freescale Semiconductor
Description : High Temperature Accuracy Integrated Silicon Pressure Sensor for Measuring Absolute Pressure, On-Chip Signal Conditioned, Temperature Compensated and Calibrated

High Temperature Accuracy Integrated Silicon Pressure Sensor for Measuring Absolute Pressure,
On-Chip Signal Conditioned, Temperature Compensated and Calibrated
-50 to 0 kPa (-7.25 to 0 psi) 0.1 to 4.6 V Output

The MPXV5050V series Sensor integrates on-chip, bipolar op amp circuitry and thin film resistor networks to provide a high output signal and Temperature Compensation. The small form factor and high reliability of on-chip integration make the Freescale Semiconductor, Inc. pressure Sensor a logical and economical choice for the system designer.
The MPXV5050V series piezoresistive transducer is a state-of-the-art, monolithic, signal conditioned, silicon pressure Sensor. This Sensor combines advanced micromachining techniques, thin film metallization, and bipolar semiconductor processing to provide an accurate, high level analog output signal that is proportional to applied pressure.

Features
• 2.5% Maximum Error over 0°to 85°C
• Ideally suited for Microprocessor or Microcontroller-Based Systems
Temperature Compensated from Over -40°to +125°C
• Patented Silicon Shear Stress Strain Gauge
• Durable Thermoplastic (PPS) Surface Mount Package
• Easy-to-Use Chip Carrier Option
• Ideal for Automotive and Non-Automotive Applications

Application Examples
• Vacuum Pump Monitoring

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