Electro-optical performance, Th7841a – Rainbow Electronics TH7841A User Manual

Page 5

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5

TH7841A

1998A–IMAGE–05/02

Notes:

1. V

OS

= average video output voltage. Measurement excludes first and last pixels.

2. F

S

= 2F

Φ

T

. The minimum clock frequency is limited by the increase in dark signal.

Electro-optical
Performance

General measurement conditions: T

C

= 25°C; T

i

= 1 ms;

F

Φ

T

= 2.5 MHz.

Light source: tungsten filament lamp (2854 K) + BG 38 filter (2 mm thick) + F/3.5 aper-
ture. The filter limits the spectrum to 700 nm; in these conditions, 1 µJ/cm

2

corresponds

to 3.5 lux.s.

Typical operating conditions; internal clock mode (see Table 2).

First and last pixels, as well as reference elements, are excluded from the specification.

Measurements taken on each output in succession.

Table 4. Static and Dynamic Electrical Characteristics

Parameter

Symbol

Values

Unit

Note

Min

Typ

Max

DC Output Level

V

REF

8

10

12

V

Output Impedance

Z

S

500

Register Single-stage Transfer Efficiency

CTE

99.992

99.998

%

V

OS

= 1V

(1)

Max. Data Output Frequency

F

S

max.

12

20

MHz

(2)

Input Current on Pins: 3, 5, 10,11,12, 13,
18, 19, 20, 21, 25

Ie

2

µA

Ve = 15V

All other pins: 0V

Peak Current Sink on

Φ

T

Clock

(I

Φ

T

)

P

500

mA

t

rise

= 15 ns

Peak Current Sink on

Φ

P

Clock

(I

Φ

P

)

P

125

mA

t

rise

= 15 ns

Output Amplifier Drain Supply Current

I

DD

17

mA

V

INH

= 0V

V

DD

= 15V

Static Power Dissipation

P

D

255

300

mW

V

INH

= 0V

V

DD

= 15V

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