AS8501 datasheet(36/40 Pages) AMSCO

36 / 40 page

AS8501 - Preliminary Data Sheet

austriamicrosystems

Revision 1.1, 04-April-06

www.austriamicrosystems.com

Page 36 of 40

parameters: 300A, G24, AV4, OSF 2.048, OSR 128

-0,5

-0,3

0,0

0,3

0,5

-25,0

0,0

25,0

50,0

75,0

100,0

125,0

temperature in deg C

250 A

15 mA

0 A

-150 A

-250 A

Figure 14: Linearity deviation for different currents over

temperature

Typical performance characteristics

parameters: 300A, G24, AV4, OSF 2.048, OSR

128

29990

29995

30000

30005

30010

500

1000

1500

2000

measurement no.

Figure 16: Resolution and noise at 95% full scale,

sampling rate: 1kHz

parameters: 300A, G24, AV32, OSF 2.048, OSR 128

-10

-5

500

1000

1500

2000

measurement no.

Figure 13: Resolution and noise at zero input, sampling rate: 1kHz

dual channel measurement, sampling rate f=8

kHz

-10000

-5000

5000

10000

200

220

240

260

280

measurement number

RSHH-RSHL 100Hz square

VBAT

220Hz sine

Figure 17: Dual mode measurement

parameters: 300A, G24, AV4, OSF 2.048, OSR 128

-0,03

-0,02

-0,01

0,00

0,01

0,02

0,03

-400

-300

-200

-100

100

200

300

400

input current in A

Figure 15: Linearity deviation over input signal

G24,AV=4,1000Hz, external averaging

0,01

0,1

100

1000

10000

final frequency in Hz

2.048 MHz

4.096 MHz

'best chopper OPA of the world'

peak to peak

sigma

Figure 18: Output voltage noise over sampling rate

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