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AD9822的产品特征：
●14-Bit 15 MSPS A/D Converter
●No Missing Codes Guaranteed
●3-Channel Operation Up to 15 MSPS
●1-Channel Operation Up to 12.5 MSPS
●Correlated Double Sampling
●1–6x Programmable Gain
●6350 mV Programmable Offset
●Input Clamp Circuitry
●Internal Voltage Reference
●Multiplexed Byte-Wide Output (8+6 Format)
●3-Wire Serial Digital Interface
●3 V/5 V Digital I/O Compatibility
●28-Lead SOIC or SSOP
●Low Power CMOS: 385 mW (Typ)
●Power-Down Mode: <1 mW
AD9822的技术参数：
| Parametert | With RespectTo | Min | Max | Uni |
| VIN, CAPT, CAPB Digital Inputs AVDD DRVDD AVSS Digital Outputs Junction Temperature Storage Temperature Lead Temperature (10 sec) |
AVSS AVSS AVSS DRVSS DRVSS DRVSS |
–0.3 –65 |
AVDD + 0.3 300 |
V C |
The AD9822 is a complete analog signal processor for CCD imaging applications. It features a 3-channel architecture designed to sample and condition the outputs of trilinear color CCD arrays. Each channel consists of an input clamp, Correlated Double Sampler (CDS), offset DAC and Pro-grammable Gain Amplifier (PGA), multiplexed to a high performance 14-bit A/D converter.
The CDS amplifiers may be disabled for use with sensors such as Contact Image Sensors (CIS) and CMOS active pixel sensors, which do not require CDS.
The 14-bit digital output is multiplexed into an 8-bit output word that is accessed using two read cycles. The internal registers are programmed through a 3-wire serial interface, and provide adjustment of the gain, offset, and operating mode.
The AD9822 operates from a single 5 V power supply, typically consumes 385 mW of power, and is packaged in a 28-lead SOIC or SSOP.