TC215

1024-

× 1024-PIXEL CCD IMAGE SENSOR

SOCS014B – AUGUST 1989 – REVISED DECEMBER 1991

2-2

POST OFFICE BOX 655303

description (continued)

The blooming protection incorporated into the sensor is based on recombining excess charge with charge of

oppositie polarity in the substrate. This antiblooming is activated by supplying clocking pulses to the

antiblooming gate, which is an integral part of each image-sensing element.

The TC215 is built using TI-proprietary virtual-phase technology, which provides devices with high blue

response, low dark signal, good uniformity, and single-phase clocking. The TC215 is characterized for operation

from –10

°C to 40°C.

functional block diagram

24 Dark Reference

Elements

Clearing Drain

Amplifiers

OUT1

OUT2

RST2

ABG1

TDB

19

15

6

3

1

2

AMP GND

CDB

8

SRG2

SRG1

TRG

IDB

11

9

10

ABG2

24

IAG2

ABG1

23

22

Blooming Protection

Image Area With

Top Drain

12 Dummy

Elements

Multiplexer, Transfer Gates,

and Serial Registers

12

IAG1

21

IAG1

16

ADB

4

ABG2

13

IAG2

14

RST1

7