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AD7851

Features: Single 5 V Supply333 kSPS Throughput Rate/62 LSB DNL-A Grade285 kSPS Throughput Rate/61 LSB DNL-K GradeA & K Grades Guaranteed to 125/238 kSPSThroughput RatePseudo-Differential Input with Two Input RangesSystem and Self-Calibration with Autocalibration onPower-UpRead/Write Capability...

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SeekIC No. : 004271032 Detail

AD7851: Features: Single 5 V Supply333 kSPS Throughput Rate/62 LSB DNL-A Grade285 kSPS Throughput Rate/61 LSB DNL-K GradeA & K Grades Guaranteed to 125/238 kSPSThroughput RatePseudo-Differential Input w...

AD7851 Data Sheet

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Part Number:
AD7851
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



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


Application

Digital Signal Processing
Speech Recognition and Synthesis
Spectrum Analysis
DSP Servo Control
Instrumentation and Control Systems
High Speed Modems
Automotive


Pinout

Connection Diagram


Specifications

(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


Description

The AD7851 is a high speed, 14-bit ADC that operates from a single 5 V power supply. The ADC powers-up with a set of default conditions at which time it can be operated as a readonly ADC. The ADC contains self-calibration and systemcalibration options to ensure accurate operation over time and temperature and has a number of power-down options for low power applications.

The AD7851 is capable of 333 kHz throughput rate. The input track-and-hold acquires a signal in 0.33 ms and features a pseudo-differential sampling scheme. The AD7851 has the added advantage of two input voltage ranges (0 V to VREF, and VREF/2 to +VREF/2 centered about VREF/2). Input signal range is to VDD and the part is capable of converting full-power signals to 20 MHz.

CMOS construction ensures low power dissipation (60 mW typ) with power-down mode (5 mW typ). The part is available in 24-pin, 0.3 inch-wide dual-in-line package (DIP), 24-lead small outline (SOIC) and 24-lead small shrink outline (SSOP) packages.




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