AD9845B |
RFQ for AD9845B Required Field |
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| Technical/Catalog Information | AD9845BJST |
| Vendor | Analog Devices Inc |
| Category | Integrated Circuits (ICs) |
| Package / Case | 48-LQFP |
| Packaging | Tray |
| Type | CCD Signal Processor |
| Interface | Microprocessor |
| Supply Voltage | 4.75 V ~ 5.25 V |
| Current - Supply | 86mA |
| Input Type | Logic |
| Output Type | Logic |
| RoHS Status | RoHS Non-Compliant |
| Other Names | AD9845BJST AD9845BJST |
| Product | Manufacturers | Pack | D/C |
| AD9845B | Analog Devices | PLCC | 99+ |
The AD9845B is an improved version of the AD9845A CCD signal processor. It features a 30 MHz single-channel architec-ture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9845B's signal chain consists of an input clamp, a correlated double sampler (CDS), PxGA, a digitally controlled VGA, a black level clamp,and a 12-bit A/D converter. Additional input modes are also provided for processing analog video signals.
The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjustment, black level adjustment, input configuration, and power-down modes.
The AD9845B operates from a single 3 V power supply, typi-cally dissipates 153 mW, and is packaged in a 48-lead LQFP.
Typical Application |
Features |
| High Performance Digital Still CamerasIndustrial/Scientific Imaging | Pin Compatible with AD9845A Designs12-Bit 30 MSPS A/D Converter30 MSPS Correlated Double Sampler (CDS)4 dB 6 dB 6-Bit Pixel Gain Amplifier (PxGA(R))2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)Low Noise Clamp CircuitsPreblanking FunctionAuxiliary Inputs with VGA and Input Clamp3-Wire Serial Digital Interface3 V Single-Supply OperationLow Power: 153 mW @ 3 V SupplySpace-Saving 48-Lead LQFP Package |
Parameter |
With RespectTo | Min | Max | Unit |
| AVDD1, AVDD2 DVDD1, DVDD2 DRVDD Digital Outputs SHP, SHD, DATACLK CLPOB, CLPDM, PBLK SCK, SL, SDATA VRT, VRB BYP1-3, CCDIN 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 + 0.3 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 |
