7809LP datasheet(6/23 Pages) MAXWELL

6 / 23 page

All data sheets are subject to change without notice

16-Bit Latchup Protected Analog to Digital Converter

7809LP

01.11.05 Rev 7

TABLE 9. 7809LP REFERENCE

(SPECIFIED PERFORMANCE -40 TO +85°C)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Internal Reference Voltage

No Load

2.48

2.5

2.52

Internal Reference Source Current (Must be

ext. buffer)

µ A

External Reference Voltage Range for Speci-

fied Linearity 1

1. Tested by application of signal.

2.3

2.5

2.7

External Reference Current Drain

Ext. 2.5000V Ref

100

µ A

TABLE 10. 7809LP DIGITAL OUTPUTS

(SPECIFIED PERFORMANCE -40 TO +85°C)

PARAMETER

SUBGROUPS

CONDITIONS

MIN

TYP

MAX

UNIT

Data Format

Data Coding

Pipeline Delay

Serial 16-bits

Binary Two’s Complement or Straight Binary

Conversion results only available after completed conversion

Data Clock

Internal (Output Only When

Transmitting Data)

External (Can Run Continually)

Selectable for internal or external data clock

9, 10, 11

EXT/INT Low

EXT/INT High

0.1

2.3

MHz

1, 2, 3

SINK = 1.6 mA

SOURCE = 500 µ A

0.4

Leakage Current 1

1. Not tested.

1, 2, 3

High-Z State,

OUT = 0V to VDIG

±10

µ A

Output Capacitance 1

1, 2, 3

High-Z State

TABLE 11. 7809LP POWER SUPPLIES

(SPECIFIED PERFORMANCE -40 TO +85°C)

PARAMETER

SUBGROUPS

CONDITIONS

MIN

TYP

MAX

UNIT

DIG

1, 2, 3

Must be < V

ANA

4.75

5.25

ANA

1, 2, 3

4.75

5.25

DIG

1, 2, 3

0.3

ANA

1, 2, 3

Power Dissipation

PWRD LOW

PWRD HIGH

1, 2, 3

ANA = VDIG = 5V

s = 100 kHz

132

100

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