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AD9821

Features: Differential Sensor Input with 1 V p-p Input Range0 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)Low Noise Optical Black Clamp CircuitAnalog Preblanking Function12-Bit 40 MSPS A/D Converter (ADC)3-Wire Serial Digital Interface3 V Single-Supply OperationLow Power: 150 mW @ 3 V Supply48...

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SeekIC No. : 004273476 Detail

AD9821: Features: Differential Sensor Input with 1 V p-p Input Range0 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)Low Noise Optical Black Clamp CircuitAnalog Preblanking Function12-Bit 40 MSPS A/D Conve...

AD9821 Data Sheet

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Part Number:
AD9821
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

Differential Sensor Input with 1 V p-p Input Range
0 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
Low Noise Optical Black Clamp Circuit
Analog Preblanking Function
12-Bit 40 MSPS A/D Converter (ADC)
3-Wire Serial Digital Interface
3 V Single-Supply Operation
Low Power: 150 mW @ 3 V Supply
48-Lead LQFP Package


Application

Digital Still Cameras Using CMOS Imagers
Industrial/Scientific Imaging


Pinout

Connection Diagram


Specifications

Respect
With Parameter To 		Min Max Unit
AVDD1, AVDD2
DVDD1, DVDD2
DRVDD
Digital Outputs
DATACLK
CLPOB, PBLK
SCK, SL, SDATA
VRT, VRB
BYP1, VIN
Junction Temperature
Lead Temperature
(10 sec)		 AVSS
DVSS
DRVSS
DRVSS
DVSS
DVSS
DVSS
AVSS
AVSS		 0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3		 +3.9
+3.9
+3.9
DRVDD + 0.
DVDD + 0.3
DVDD + 0.3
DVDD + 0.3
AVDD + 0.3
AVDD + 0.3
150
300		 V
V
V
V
V
V
V
V
V
°C
°C



Description

The AD9821 is a complete analog signal processor for imaging applications that do not require Correlated Double Sampling (CDS). It features a 40 MHz single-channel architecture designed
to sample and condition the outputs of CMOS imagers and CCD arrays already containing on-chip CDS. The AD9821's signal chain consists of a differential input sample-and-hold amplifier
(SHA), digitally controlled variable gain amplifier (VGA), black level clamp, and a 12-bit ADC.

The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjust- ment, black level adjustment, and power-down modes. The AD9821 operates from a single 3 V power supply, typically dissipates 150 mW, and is packaged in a 48-lead LQFP.




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