LMP91050MMX datasheet(11/23 Pages) TI

Part #	LMP91050MMX

Description	LMP91050 Configurable AFE for Nondispersive Infrared (NDIR) Sensing Applications

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Manufacturer	TI [Texas Instruments]

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100m

1

10

100

1k

10k

0

20

40

60

80

100

120

140

FREQUENCY (Hz)

0

50

100

150

200

250

300

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

DAC CODE

VDD = 3.3V

G = 1002 V/V

G = 2004 V/V

G = 4003 V/V

G = 7986 V/V

10k

100k

1M

10M

0

10

20

30

40

FREQUENCY (Hz)

G = 32 V/V

G = 16 V/V

G = 8 V/V

G = 4 V/V

10

100

1k

60

70

80

90

100

110

120

FREQUENCY (Hz)

G = 7986 V/V

G = 4003 V/V

G = 2004 V/V

G = 1002 V/V

2.5

3.0

3.5

4.0

4.5

5.0

5.5

50

55

60

65

70

VDD (V)

G = 1002 V/V

1k

10k

100k

1M

0

10

20

30

40

50

60

FREQUENCY (Hz)

G = 250 V/V

G = 42 V/V

LMP91050

www.ti.com

SNAS517D – NOVEMBER 2011 – REVISED MARCH 2013

Typical Performance Characteristics (continued)

VDD = +3.3V, VCM = 1.15V, and TA = 25°C unless otherwise noted

Output Offset vs. Supply Voltage

PGA1 Small Signal Bandwidth

Figure 22.

Figure 23.

PGA2 Small Signal Bandwidth

Power Supply Rejection Ratio vs. Frequency

Figure 24.

Figure 25.

Input-Referred Noise Density vs. Frequency

DAC DC Sweep

Figure 26.

Figure 27.

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