MAX1209 datasheet(11/27 Pages) MAXIM

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12-Bit, 80Msps, 3.3V IF-Sampling ADC

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1.5

1.0

0.5

2.5

2.0

3.0

3.5

-8

-4

REFP, COM, REFN

SHORT-CIRCUIT PERFORMANCE

SINK CURRENT (mA)

VREFP

VCOM

VREFN

INTERNAL REFERENCE MODE

AND BUFFERED EXTERNAL

REFERENCE MODE

1.0

0.5

2.0

1.5

2.5

3.0

-2

-1

REFP, COM, REFN

LOAD REGULATION

SINK CURRENT (mA)

VREFP

VCOM

VREFN

INTERNAL REFERENCE MODE AND

BUFFERED EXTERNAL REFERENCE MODE

Typical Operating Characteristics (continued)

(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), VIN = -0.5dBFS, CLKTYP = high, DCE = high, PD = low,

G/T = low, fCLK = 80MHz (50% duty cycle), TA = +25°C, unless otherwise noted.)

1.95

1.97

1.96

1.98

1.99

2.00

2.02

2.01

2.03

2.04

2.05

-2.0

0.5

-1.5

-1.0

-0.5

REFERENCE OUTPUT VOLTAGE

LOAD REGULATION

IREFOUT SINK CURRENT (mA)

+85

°C

+25

°C

-40

°C

0.5

1.0

1.5

2.5

2.0

3.0

3.5

-3.0

-2.0

-1.0

1.0

REFERENCE OUTPUT VOLTAGE

SHORT-CIRCUIT PERFORMANCE

IREFOUT SINK CURRENT (mA)

+85

°C

+25

°C

-40

°C

2.029

2.031

2.033

2.035

2.037

2.039

-40

-15

-10

REFERENCE OUTPUT VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

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