AD7851 General Description
AD7851 Maximum Ratings
(TA = +25 unless otherwise noted)
AVDD to AGND . . . . . . . . . . . . . . . . . . .. . . . . 0.3 V to +7 V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . .. . . . . . . 0.3 V to +0.3 V
Analog Input Voltage to AGND . . .. . 0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND . . . . 0.3 V to DVDD + 0.3 V
Digital Output Voltage to DGND . . . 0.3 V to DVDD + 0.3 V
REFIN/REFOUT to AGND . . . . . . . . . . 0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . . . . . ±10 mA
Operating Temperature Range
Commercial (A, K Versions) . . . . . . . . . . . . 40 to +125
Storage Temperature Range . . . . . . . . . . . 65 to +150
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . +150
Plastic DIP Package, Power Dissipation . . . . . . .. . . 450 mW
qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 105/W
qJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 34.7/W
Lead Temperature, (Soldering, 10 secs) . . . . . . . . . . +260
SOIC, SSOP Package, Power Dissipation . . . . . . . . . 450 mW
JA Thermal Impedance . . . 75/W (SOIC) 115/W (SSOP)
JC Thermal Impedance . .. . . 25/W (SOIC) 35/W (SSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . . . +215
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . . +220
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1.5 kV
AD7851 Features
Single 5 V Supply
333 kSPS Throughput Rate/62 LSB DNL-A Grade
285 kSPS Throughput Rate/61 LSB DNL-K Grade
A & K Grades Guaranteed to 125/238 kSPS
Throughput Rate
Pseudo-Differential Input with Two Input Ranges
System and Self-Calibration with Autocalibration on
Power-Up
Read/Write Capability of Calibration Data
Low Power: 60 W typ
Power-Down Mode: 5 W typ Power Consumption
Flexible Serial Interface:
8051/SPI/QSPI/ P Compatible
24-Pin DIP, SOIC and SSOP Packages
AD7851 Typical Application
Digital Signal Processing
Speech Recognition and Synthesis
Spectrum Analysis
DSP Servo Control
Instrumentation and Control Systems
High Speed Modems
Automotive
AD7851 Connection Diagram
Map list: ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789All