AD7451BRM 查看數據表（PDF） - Analog Devices

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AD7451BRM

Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23

Analog Devices 

PRELIMINARY TECHNICAL DATA

AD7451/AD7441

ABSOLUTE MAXIMUM RATINGS1

(TA = +25°C unless otherwise noted)

VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +7 V

VIN+ to GND . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V

VIN- to GND . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V

Digital Input Voltage to GND . . . . . . . . -0.3 V to +7 V

Digital Output Voltage to GND . -0.3 V to VDD + 0.3 V

VREF to GND . . . . . . . . . . . . . . . . . -0.3 V to VDD +0.3 V

Input Current to Any Pin Except Supplies2 . . . . ±10mA

Operating Temperature Range

Commercial (A, B Version) . . . . . . . . . -40oC to +85oC

Storage Temperature Range . . . . . . . . . -65oC to +150oC

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . +150oC

␪JA Thermal Impedance . . . . . . . . . . 205.9°C/W (µSOIC)

211.5°C/W (SOT-23)

␪JC Thermal Impedance . . . . . . . . . 43.74°C/W (µSOIC)

91.99°C/W (SOT-23)

Lead Temperature, Soldering

Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . +215oC

Infared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . +220oC

ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.5kV

TO

OUT PUT

PIN CL

50pF

IO L

1.6mA

+1.6V

IO H

200µA

Figure 3. Load Circuit for Digital Output Timing

Specifications

NOTES

1Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. This is a stress rating only and functional operation of the device

at these or any other conditions above those listed in the operational sections of this

specification is not implied. Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

2Transient currents of up to 100 mA will not cause SCR latch up.

Model

AD7451BRT

AD7451BRM

AD7441BRT

AD7441BRM

TBD

EVAL-CONTROL BRD23

ORDERING GUIDE

Range

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

Evaluation Board

Controller Board

Linearity

Package

Error (LSB)1 Option4

±1 LSB

±1 LSB

±0.5 LSB

±0.5 LSB

RT-8

RM-8

RT-8

RM-8

Branding Information

TBD

TBD

TBD

TBD

NOTES

1Linearity error here refers to Integral Non-linearity Error.

2This can be used as a stand-alone evaluation board or in conjunction with the EVALUATION BOARD CONTROLLER for evaluation/demonstration purposes.

3EVALUATION BOARD CONTROLLER. This board is a complete unit allowing a PC to control and communicate with all Analog Devices

evaluation boards ending in the CB designators. To order a complete Evaluation Kit, you will need to order the ADC evaluation board i.e.

TBD, the EVAL-CONTROL BRD2 and a 12V AC transformer. See the TBD technote for more information.

4RT = SOT-23; RM = µSOIC

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V

readily accumulate on the human body and test equipment and can discharge without

detection. Although the AD7451/AD7441 features proprietary ESD protection circuitry,

permanent damage may occur on devices subjected to high-energy electrostatic

discharges. Therefore, proper ESD precautions are recommended to avoid performance

degradation or loss of functionality.

REV. PrC

–7–

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