8

All data sheets are subject to change without notice

©2005 Maxwell Technologies

All rights reserved.

16-Bit Latchup Protected Analog to Digital Converter

7809LP

01.11.05 Rev 7

Selecting Output

Format

x

x

x

x

x

x

x

x

x

x

x

x

0

3

1

Serial data is output in

Binary Two’s Comple-

ment format.

Serial data is output in

Straight Binary format.

1. See Figure 4 for constraints on previous data valid during conversion.

TO

TO

IN TO

±10V

V

IN

AGND

CAP

22.9 k

Ω

±5V

AGND

V

IN

CAP

13.3 k

Ω

±3.3V

V

IN

V

IN

CAP

10.7 k

Ω

0V to 10V

AGND

V

IN

AGND

13.3k

Ω

0V to 5V

AGND

AGND

V

IN

10.0 k

Ω

0V to 4V

V

IN

AGND

V

IN

10.7 k

Ω

(T

t1

Convert Pulse Width

9, 10, 11

40

--

6000

ns

t2

BUSY Delay

9, 10, 11

--

--

65

ns

t3

BUSY LOW

9, 10, 11

--

--

8

µ s

t4

BUSY Delay after End of Conversion

9, 10, 11

--

220

--

ns

t5

Aperture Delay

9, 10, 11

--

40

--

ns

t6

Conversion Time

9, 10, 11

--

7.6

8

µ s

t7

Acquisition Time

9, 10, 11

--

--

2

µ s

t6 + t7

Throughput Time

9, 10, 11

--

9

10

µ s

t8

R/C Low to DATACLK Delay

9, 10, 11

--

450

--

ns

t9

DATACLK Period

9, 10, 11

--

440

--

ns

t10

Data Valid to DATACLK HIGH Delay

9, 10, 11

20

75

--

ns

t11

Data Valid after DATACLK LOW

Delay

9, 10, 11

100

125

--

ns

t12

External DATACLK

9, 10, 11

100

--

--

ns

CS

R/C

BUSY

EXT/INT

DATACL

K

PWRD

SB/BTC