ADN8834ACPZ-R7_ADN8834ACPZ-R7探测器接口芯片

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ADN8834ACPZ-R7 Description

The ADN88341 is a monolithic TEC controller with an integratedTEC controller. It has a linear power stage, a pulse-widthmodulation (PWM) power stage, and two zero-drift, rail-to-railoperational amplifiers. The linear controller works with the PWMdriver to control the internal power MOSFETs in an H-bridgeconfiguration. By measuring the thermal sensor feedbackvoltage and using the integrated operational amplifiers as aproportional integral differential (PID) compensator to conditionthe signal, the ADN8834 drives current through a TEC to settlethe temperature of a laser diode or a passive component attachedto the TEC module to the programmed target temperature.

The temperature control loop of the ADN8834 is stabilized byPID compensation utilizing the built in, zero drift chopperamplifiers. The internal 2.50 V reference voltage provides a 1%accurate output that is used to bias a thermistor temperaturesensing bridge as well as a voltage divider network to programthe maximum TEC current and voltage limits for both the heatingand cooling modes. With the zero drift chopper amplifiers,extremely good long-term temperature stability is maintained viaan autonomous analog temperature control loop.

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ADN8834ACPZ-R7 Features

♦ Patented high efficiency single inductor architecture

♦ Integrated low RDSON MOSFETs for the

♦ TEC controllerTEC voltage and current operation monitoring

♦ No external sense resistor required

♦ Independent TEC heating and cooling current limit settings

♦ Programmable maximum TEC voltage

♦ 2.0 MHz PWM driver switching frequency

♦ External synchronization

♦ Two integrated, zero drift, rail-to-rail chopper amplifiers

♦ Capable of NTC or RTD thermal sensors

♦ 2.50 V reference output with 1% accuracy

♦ Temperature lock indicator

♦ Available in a 25-ball, 2.5 mm × 2.5 mm WLCSP or in a

♦ 24-lead, 4 mm × 4 mm LFCSP

ADN8834ACPZ-R7 Applications

♦ TEC temperature control

♦ Optical modules

♦ Optical fiber amplifiers

♦ Optical networking systems

♦ Instruments requiring TEC temperature control

ADN8834ACPZ-R7 Pin Configuration (Top View)

ADN8834ACPZ-R7 Order Information

ADN8834ACPZ-R7 Function block or application schematic

ADN8834ACPZ-R7 ADI亚德诺热卖型号列表
ADM2587EBRWZ	ADSP-21489KSWZ-4B	AD623ARZ-R7	ADUM3160BRWZ
AD623ARZ	ADUM1200ARZ	ADXL345BCCZ-RL7	ADUM1301ARWZ
ADUM1201ARZ	AD8495ARMZ	ADM2484EBRWZ	ADF4350BCPZ
ADM3251EARWZ	AD9361BBCZ	ADXL355BEZ	AD7689BCPZ
ADM2483BRWZ	AD820ARZ	AD620AN	AD9833BRMZ
AD7606BSTZ	ADM3053BRWZ-REEL7	ADUM1200BRZ	AD8226ARMZ
ADM3053BRWZ	ADM2483	AD780BRZ	AD8512ARZ
AD620ARZ	ADM3251	ADAU1701JSTZ	ADUM1411ARWZ
ADM2682EBRIZ	ADV7611BSWZ	AD5410AREZ	AD8606ARMZ
ADM2582EBRWZ	ADM2483BRWZ-REEL	ADS1256IDBR	AD5422BREZ
ADM2587	AD7190BRUZ	ADV7513BSWZ	ADUM4160BRWZ
ADXL345BCCZ	ADS1110A0IDBVR	ADS1232IPWR	ADAU1761BCPZ
AD822ARZ	AD590JH	ADXL362BCCZ	ADS1015IRUGR
ADM3053	ADM483EARZ	ADUM1201	AD7606
ADM2587EBRWZ-REEL7	ADS1118IDGSR	AD8138ARZ	ADUM1401BRWZ
ADS1115IDGSR	ADXL335BCPZ	AD620AR	AD7663ASTZ
ADS1015IDGSR	AD823ARZ	AD8221ARZ	ADUM1201BRZ-RL7
ADM2687EBRIZ	ADM3202ARNZ	AD8606ARZ	AD7792BRUZ
ADUM1201BRZ	ADM3485EARZ	ADM485ARZ	ADA4522-2ARZ
AD7616BSTZ	ADUM3201ARZ	AD8602ARZ	ADUM1251ARZ
AD8605ARTZ	AD620	ADS1230IPWR	ADG1408YRUZ
ADUM1250ARZ	ADM3251EARWZ-REEL	AD8542ARZ	ADF4351BCPZ
ADUM1201ARZ-RL7	ADUM1401ARWZ	AD8310ARMZ	More models