PGA309ASPWT datasheet(11/27 Pages) TI1

Part #	PGA309ASPWT

Description	VOLTAGE OUTPUT PROGRAMMABLE SENSOR CONDITIONER

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Manufacturer	TI1 [Texas Instruments]

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90

80

70

60

50

40

30

20

10

0

-10

Frequency (Hz)

10

100

1k

10k

100k

1M

Small-Signal

V

and V

Enabled

V

= 2.5V

PSRR at V

REF

EXT

REF

OUT

80

60

40

20

0

Frequency (Hz)

10

100

1k

10k

100k

1M

G

= Output Amplifier Gain

OUTAMP

G

= 9V/V

G

= 128V/V

OUTAMP

FRONT

G

= 9V/V

G

= 32V/V

OUTAMP

FRONT

G

= 2V/V

G

= 32V/V

OUTAMP

FRONT

G

= 2V/V

G

= 8V/V

OUTAMP

FRONT

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

Frequency (Hz)

10

100

1k

10k

100k

1M

RTO of Front- End PGA

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

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

PGA309-HT

www.ti.com

SBOS687A – OCTOBER 2013 – REVISED DECEMBER 2013

TYPICAL CHARACTERISTICS

At 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.

VREF vs TEMPERATURE

IB CURRENT vs TEMPERATURE

Figure 2.

Figure 3.

ITEMP CURRENT vs TEMPERATURE

COMMON-MODE REJECTION RATIO vs FREQUENCY

Figure 4.

Figure 5.

POWER-SUPPLY REJECTION RATIO vs FREQUENCY

CLOSED

−LOOP GAIN vs FREQUENCY

Figure 6.

Figure 7.

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