PGA309

SBOS292A − DECEMBER 2003 − REVISED AUGUST 2004

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9

TYPICAL CHARACTERISTICS

TA = +25°C, VSA = VSD = +5V (VSA = VSUPPLY ANALOG, VSD = VSUPPLY DIGITAL, VSA must equal VSD), GNDD = GNDA = 0, and VREF = REFIN/REFOUT = +5V,

unless otherwise noted.

Average

4.090

4.085

4.080

4.075

4.070

4.065

4.060

Temperature (

_C)

−55 −35 −15

5

25

45

65

85

105 125

145

V

I

Temperature (

_C)

−55 −35 −15

5

25

45

65

85

105 125

145

1.0

0.5

0

−0.5

−1.0

−1.5

−2.0

−2.5

−3.0

Average, nA

I

Temperature (

_C)

−55 −35 −15

5

25

45

65

85

105 125

145

9

8

7

6

5

4

3

2

1

0

Average

70

60

50

40

30

20

10

0

−10

−20

−30

COMMON−MODE REJECTION RATIO vs FREQUENCY

Frequency (Hz)

10

100

1k

10k

100k

1M

RTO of Front−End PGA

90

80

70

60

50

40

30

20

10

0

−10

POWER−SUPPLY REJECTION RATIO vs FREQUENCY

Frequency (Hz)

10

100

1k

10k

100k

1M

Small−Signal

V

V

PSRR at V

OUT

80

60

40

20

0

CLOSED−LOOP GAIN vs FREQUENCY

Frequency (Hz)

10

100

1k

10k

100k

1M

G

G

G

G

G

G

G

G

G