8

SP8537DS/03

SP8537 Micropower Sampling 10–Bit Voltage A/D Converter

© Copyright 2000 Sipex Corporation

Icc versus Sampling Rate

(clock rate = 100kHz)

Vcc = 3.3V

Icc versus Sampling Rate

(clock rate = 500kHz)

Vcc = 5V

conversion time (

µs)

Vcc = 5.00V

Vcc = 3.30V

FFT 20 dB/div Vcc =5V

conversion time (

µs)

0HZ

1.74kHz/div

13.9kHz

+1.0LSB

INLE

-1.0LSB

+1.0LSB

DNLE

-1.0LSB

+1.0LSB

INLE

-1.0LSB

+1.0LSB

DNLE

-1.0LSB

0

512

1023

0

512

1023

0dB

FFT

-20dB

-160dB

FFT 20 dB/div Vcc =3V

0HZ

0.348kHx/div

2.78kHz

0dB

FFT

-20dB

-160dB

200.0

180.0

160.0

140.0

120.0

100.0

80.0

60.0

40.0

20.0

0.0

10

100

1000

10000

10

100

1000

10000

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0

0.0