Overview
The AD9814JRRL, produced by Analog Devices Inc., is a complete 14-bit CCD/CIS signal processor designed for various imaging applications. This integrated circuit features a 3-channel architecture, making it suitable for sampling and conditioning the outputs of trilinear color CCD arrays. It includes components such as input clamps, Correlated Double Samplers (CDS), offset DACs, and Programmable Gain Amplifiers (PGAs), all multiplexed to a high-performance 14-bit A/D converter. The AD9814 operates from a single +5 V power supply and is packaged in a 28-lead SOIC package, making it a compact and efficient solution for imaging systems.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Conversion Rate (3-Channel Mode with CDS) | 6 | 10 | 10 | MSPS |
| Conversion Rate (1-Channel Mode with CDS) | 6 | 7 | 7 | MSPS |
| Power Supply Voltage (AVDD, DRVDD) | +4.75 | +5.0 | +5.25 | V |
| Total Operating Current (AVDD) | 64 | 64 | 80 | mA |
| Total Operating Current (DRVDD) | 1.8 | 1.8 | 10 | mA |
| Power-Down Mode Current | 150 | 150 | µA | |
| Power Dissipation | 330 | 330 | 450 | mW |
| Logic Input High Level Voltage (VIH) | 2.6 | V | ||
| Logic Input Low Level Voltage (VIL) | 0.8 | V |
Key Features
- 14-bit A/D converter with no missing codes guaranteed
- Up to 10 MSPS in 3-channel mode and up to 7 MSPS in 1-channel mode
- Correlated Double Sampling (CDS) with option to disable for sensors like CIS and CMOS active pixel sensors
- 1-6x programmable gain and ±300 mV programmable offset
- Input clamp circuitry and internal voltage reference
- Multiplexed byte-wide output (8+6 format) and 3-wire serial digital interface
- +3/+5 V digital I/O compatibility
- Low power CMOS: 330 mW (typ) with power-down mode < 1 mW
- 28-lead SOIC package
Applications
- Flatbed document scanners
- Film scanners
- Digital color copiers
- Multifunction peripherals
Q & A
- What is the AD9814JRRL used for? The AD9814JRRL is used as a complete analog signal processor for CCD and CIS imaging applications.
- What is the conversion rate of the AD9814JRRL in 3-channel mode? The conversion rate in 3-channel mode with CDS is up to 10 MSPS.
- What is the power supply voltage for the AD9814JRRL? The AD9814JRRL operates from a single +5 V power supply.
- What is the typical power consumption of the AD9814JRRL? The typical power consumption is 330 mW.
- Does the AD9814JRRL have a power-down mode? Yes, the AD9814JRRL has a power-down mode that consumes less than 1 mW.
- What is the package type of the AD9814JRRL? The AD9814JRRL is packaged in a 28-lead SOIC package.
- Can the AD9814JRRL be used with different types of sensors? Yes, it can be used with CCD arrays and sensors like CIS and CMOS active pixel sensors by disabling the CDS.
- How is the gain and offset adjusted in the AD9814JRRL? The gain and offset are adjusted through internal registers programmed via a 3-wire serial interface.
- What are some common applications of the AD9814JRRL? Common applications include flatbed document scanners, film scanners, digital color copiers, and multifunction peripherals.
- Is the AD9814JRRL still in production? No, the AD9814JRRL is obsolete and no longer manufactured.
