MAX1425 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1425

10-Bit, 20Msps ADC

Maxim Integrated 

10-Bit, 20Msps ADC

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD = VCMLP = +5V, VDVDD = +3.3V, VCMLN = VAGND = VDGND = 0V, internal reference, digital output load = 35pF, fCLK = 20MHz

(50% duty cycle), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

ANALOG INPUT (INP, INN, CML)

Input Resistance

RIN

Input Capacitance

CIN

Input Common-Mode Voltage

Range

VCMVR

CONDITIONS

Either input to ground

Either input to ground

CML (Note 6)

MIN TYP MAX UNITS

3.5

kΩ

8

pF

2.25

±10%

V

Differential Input Range

DR

VINP - VINN

Small-Signal Bandwidth

SSBW (Note 7)

Large-Signal Bandwidth

LSBW (Note 7)

REFERENCE (VREFIN = 0; REFP, REFN, CML applied externally)

Input Resistance

RIN

REFIN (Note 8)

Input Capacitance

CIN

REFIN

Differential Reference

VREFP - VREFN

Input Current

IIN

REFP, CML, REFN

Input Capacitance

CIN REFP, CML, REFN

REFP Input Range

±2

V

400

MHz

150

MHz

6.5

kΩ

10

pF

2.0

V

-325

325

µA

15

pF

3.25

±10%

V

CML Input Range

2.25

±10%

V

REFN Input Range

1.25

±10%

V

REFERENCE OUTPUTS (REFP, CML, REFN; external +2.5V reference)

Positive Reference Voltage

VREFP

Common-Mode Reference

Voltage

VCML

3.25

V

2.25

V

Negative Reference Input

Voltage

VREFN

1.25

V

Differential Reference

Differential Reference

Temperature Coefficient

VREFP - VREFN, TA = +25°C

1.9

2.0

±50

2.1

V

ppm/°C

REFERENCE OUTPUTS (REFP, CML, REFN; internal +2.5V reference)

Positive Reference

VREFP (Note 1)

Common-Mode Reference

Voltage

VCML (Note 1)

3.25

V

2.25

V

Negative Reference

Differential Reference

Differential Reference

Temperature Coefficient

VREFN

(Note 1)

VREFP - VREFN, TA = +25°C

1.25

V

1.8

2

2.2

V

±150

ppm/°C

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