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Typical operating characteristics (continued) – Rainbow Electronics MAX1092 User Manual

Page 7

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MAX1090/MAX1092

400ksps, +5V, 8-/4-Channel, 10-Bit ADCs

with +2.5V Reference and Parallel Interface

_______________________________________________________________________________________

7

2.48

2.49

2.51

2.50

2.52

2.53

INTERNAL REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

MAX1090/92 toc10

V

DD

(V)

V

REF

(V)

4.50

5.00

4.75

5.25

5.50

2.48

2.49

2.51

2.50

2.52

2.53

-40

10

-15

35

60

85

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

MAX1090/92 toc 11

TEMPERATURE (°C)

V

REF

(V)

1.0

0.5

0

-0.5

-1.0

4.50

5.00

4.75

5.25

5.50

OFFSET ERROR

vs. SUPPLY VOLTAGE

MAX1090 TOC12

V

DD

(V)

OFFSET ERROR (LSB)

1.0

0.5

0

-0.5

-1.0

-40

10

-15

35

60

85

OFFSET ERROR

vs. TEMPERATURE

MAX1090 TOC13

TEMPERATURE (°C)

OFFSET ERROR (LSB)

-0.50

0

-0.25

0.25

0.50

GAIN ERROR vs. SUPPLY VOLTAGE

MAX1090/92 toc14

V

DD

(V)

GAIN ERROR (LSB)

4.50

5.00

4.75

5.25

5.50

0

0.125

0.250

0.375

0.500

GAIN ERROR vs. TEMPERATURE

MAX1090/92 toc15

TEMPERATURE (°C)

GAIN ERROR (LSB)

-40

35

60

-15

10

85

50

150

100

200

250

LOGIC SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX1090/92 toc16

V

DD

(V)

I

LOGIC

(µA)

4.50

5.00

4.75

5.25

5.50

Typical Operating Characteristics (continued)

(V

DD

= V

LOGIC

= +5V, V

REF

= +2.500V, f

CLK

= 7.6MHz, C

L

= 20pF, T

A

= +25°C, unless otherwise noted.)

0

50

150

100

200

250

-40

10

-15

35

60

85

LOGIC SUPPLY CURRENT

vs. TEMPERATURE

MAX1090/92 toc 17

TEMPERATURE (°C)

I

LOGIC

(µA)

-140

-120

-100

-80

-60

-40

-20

0

20

0

400

200

600

800

1000

1200

FFT PLOT

MAX1291/93 toc18

FREQUENCY (kHz)

AMPLITUDE (dB)

V

DD

= 5V

f

IN

= 50kHz

f

SAMPLE

= 400ksps