VSP2272

SLES020 – DECEMBER 2001

6

www.ti.com

PARAMETER

TEST CONDITIONS

VSP2272Y, VSP2272M

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TRANSFER CHARACTERISTICS

DNL

Differential nonlinearity

PGA gain = 0 dB

±0.5

LSB

INL

Integral nonlinearity

PGA gain = 0 dB

±1

LSB

No missing codes

Assured

Step response settling time

Full-scale step input

1

pixel

Overload recovery time

Step input from 1.8 V to 0 V

2

pixels

Data latency

9 (fixed)

Clock

Cycles

Signal to noise ratio (see Note 1)

Grounded input capacitor, PGA gain = 0 dB

77

dB

Signal-to-noise ratio (see Note 1)

Grounded input capacitor, gain = 24 dB

53

dB

CCD offset correction range

–180

200

mV

CDS

Reference sample settling time

Within 1 LSB, driver impedance = 50

Ω

8.9

ns

Data sample settling time

Within 1 LSB, driver impedance = 50

Ω

8.9

ns

INPUT CLAMP

Clamp-on resistance

400

Ω

Clamp level

1.5

V

PROGRAMMABLE GAIN AMPLIFIER (PGA)

Gain control resolution

10

Bits

Maximum gain

Gain code = 1111111111

42

High gain

Gain code = 1101001000

34

Medium gain

Gain code = 1000100000

20

dB

Low gain

Gain code = 0010000000

0

dB

Minimum gain

Gain code = 0000000000

–6

Gain control error

±0.5

OPTICAL BLACK CLAMP LOOP

Control DAC resolution

10

Bits

Optical black clamp level

Programmable range of clamp level

2

242

LSB

Optical black clamp level

OBCLP level at CODE = 1000

130

LSB

Minimum output current for control DAC

COB pin

±0.15

µA

Maximum output current for control DAC

COB pin

±153

µA

Loop time constant

CCOB = 0.1 µF

40.7

µs

Slew rate

CCOB = 0.1 µF, Saturated output current of

control DAC

1530

V/s

POWER SUPPLY

Supply voltage

VCC, DRVDD

2.7

3

3.6

V

Power dissipation

Normal operation mode: No load

94

mW

Power dissipation

Stand-by mode: fADCCK = Does not apply

6

mW

TEMPERATURE RANGE

Operating temperature

–25

85

°C

θ

Thermal resistance

VSP2272Y: 48-lead LQFP

100

°C/W

θJA

Thermal resistance

VSP2272M: 48-lead P-VQFN

107

°C/W

NOTE 1: SNR = 20 log (full-scale voltage / rms noise)