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Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional,

but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply

only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.

Note 2: All voltages are measured with respect to GND=AGND=DGND=0V, unless otherwise specified.

maximum package input current rating limits the number of pins that can simultaneously safely exceed the power supplies with an input current of 25mA to two.

is 53°C/W

.

Note 5: Human body model, 100pF capacitor discharged through a 1.5k

Ω resistor. Machine model, 200pF capacitor discharged through a 0Ω resistor.

Note 6: See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in any National Semiconductor Linear

Data Book for other methods of soldering surface mount devices.

Note 7: Two diodes clamp the OS analog inputs to

impedance of the sensor, prevents damage to the LM9833 from transients during power-up.

Note 8: For best performance, it is required that all supply pins be powered from the same power supply with separate bypass capacitors at each supply pin.

Note 10: Tested limits are guaranteed to National's AOQL (Average Outgoing Quality Level).

Note 11: Integral linearity error is defined as the deviation of the analog value, expressed in LSBs, from the straight line that best fits the actual transfer function of the ADC.

LM9833 can correct for using its internal PGA.

Note 13:

PGA Gain Error is the maximum difference between the measured gain for any PGA code and the ideal gain calculated by using the formula

where

.

Note 14: DNL, INL, and Power Supply Current are specified at the 80% Bias Current Setting (Register 9). This is the maximum recommended Bias Current setting, and

gives the best analog performance as well as lower power consumption for USB-bus powered applications.

AC Electrical Characteristics

Symbol

Parameter

Conditions

Typical

(Note 9)

Limits

(Note 10)

Units

(Limits)

DRAM Timing (Figure 1)

Data valid to RD rising edge

26

35

ns (min)

ns (min)

Data valid after RD rising edge

0

ns (min)

Data valid before WR falling edge

5

ns (min)

Data valid after WR rising edge

10

ns (min)

OS Input

AGND

VA

To Internal

Circuitry

CCD Output Signal

Gain

PGA

V

V

----





G

0

X

PGA code

32

---------------------------

+

=X

G

31

G

0

–

()32

31

------

=