MAX9922 datasheet(6/14 Pages) MAXIM

Part #	MAX9922

Description	Ultra-Precision, High-Side Current-Sense Amplifiers

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Manufacturer	MAXIM [Maxim Integrated Products]

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Ultra-Precision, High-Side

Current-Sense Amplifiers

6

_______________________________________________________________________________________

Typical Operating Characteristics

(VDD = 3.3V, VSHDN = VDD, VRSB = VRS+ = VRS- = 12V, TA = +25°C, unless otherwise noted.)

MAX9922 UNIPOLAR

GAIN ACCURACY HISTOGRAM

GAIN ACCURACY (%)

0.3

0.2

0.1

0

-0.4 -0.3 -0.2 -0.1

-0.5

10

20

30

40

60

50

90

80

70

0

0.5

0.4

MAX9922 INPUT

OFFSET VOLTAGE HISTOGRAM

VOS (

μV)

6

4

2

0

-8

-6

-4

-2

-10

10

20

30

40

60

50

0

10

8

MAX9922

OFFSET VOLTAGE DRIFT HISTOGRAM

TCVOS (nV/

°C)

30

20

10

0

-40 -30 -20 -10

-50

10

20

30

40

60

50

0

50

40

INPUT REFERRED OFFSET

vs. INPUT COMMON-MODE VOLTAGE

INPUT COMMON MODE (V)

24

20

4

8

12

16

-6

-4

-2

0

2

4

6

8

-8

028

MAX9922

INPUT vs. OUTPUT

DIFFERENTIAL INPUT (mV)

150

-150

0

50

-50

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

-250

250

RF = 100k

Ω

RG = 20k

Ω

MAX9922

INPUT vs. OUTPUT

DIFFERENTIAL INPUT (mV)

15

-15

0

5

-5

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

-25

25

RF = 100k

Ω

RG = 1k

Ω

0

0.1

0.3

0.2

0.4

0.5

010

515

20

25

GAIN ERROR

vs. INPUT COMMON-MODE VOLTAGE

INPUT COMMON MODE (V)

REF = GND

VOH/VOL

vs. IOH/IOL

OUTPUT CURRENT (mA)

8

6

4

2

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0

010

VOH

VOL

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MAX9922 Datasheet(PDF) 6 Page - Maxim Integrated Products

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