TC237

Supply voltage range, ADB (see Note 1) .....................SUB to SUB + 15 V
Supply voltage range, ODB .........................................SUB to SUB + 21 V
Input voltage range for ABG, IAG1, IAG2, SAG, SRG ................0 V to 15 V
Operating free-air temperature range, T_A .........................10  to 45 
Storage temperature range............................................... 30  to 85
Operating case temperature range ....................................10  to 55

† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to substrate terminal.

The TC237 is a frame-transfer, charge-coupled device (CCD) image sensor designed for use in single-chip black and white NTSC TV, computer, and special-purpose applications requiring low cost and small size.

The image-sensing area of the TC237 is configured into 500 lines with 680 elements in each line. Twenty-two elements are provided in each line for dark reference. The blooming-protection feature of the sensor is based on an advanced lateral-overflow-drain concept. The sensor can be operated in a true-interlace mode as a 658(H) * 496(V) sensor with a very low dark current. One important feature of the TC237 very high-resolution sensor is the ability to capture a full 340,000 pixels per field. The image sensor also provides high-speed imagetransfer capability. This capability allows for a continuous electronic exposure control without the loss of sensitivity and resolution inherent in other technologies. The charge is converted to signal voltage at 20 V per electron by a high-performance structure with a reset and a voltage-reference generator. The signal is further buffered by a low-noise, two-stage, source-follower amplifier to provide high output-drive capability.

The TC237 is built using TI-proprietary advanced virtual-phase (AVP) technology, which provides devices with high blue response, low dark signal, good uniformity, and single-phase clocking. The TC237 is characterized for operation from 10to 45.