MAX122ACAG Просмотр технического описания (PDF) - Maxim Integrated

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MAX122ACAG

500ksps, 12-Bit ADCs with Track/Hold and Reference

Maxim Integrated 

MAX120/MAX122

500ksps, 12-Bit ADCs with Track/Hold

and Reference

Electrical Characteristics (continued)

(VDD = +4.75V to +5.25V, VSS = -10.8V to -15.75V, fCLK = 8MHz for MAX120 and 5MHz for MAX122, TA = TMIN to TMAX, unless

otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

DYNAMIC PERFORMANCE (MAX120: fS = 500kHz, VAIN = ±5VP-P, 100kHz: MAX122: fS = 333kHz, VAIN = ±5VP-P, 50kHz

MAX120, MAX122

70

72

Signal-to-Noise Plus Distortion

SINAD TA = +25°C

MAX122AC/AE

70

dB

MAX122BC/BE

69

Total Harmonic Distortion

(First Five Harmonics)

THD

TA = +25°C

MAX120

MAX122

MAX122AC/AE

-82

-77

-85

-78

dB

-77

MAX122BC/BE

-75

MAX120

77

82

TA = +25°C

MAX122

78

85

Spurious-Free Dynamic Range

SFDR

dB

MAX122AC/AE

77

MAX122BC/BE

75

CONVERSION TIME

Synchronous

tCONV 13tCLK

MAX120

MAX122

1.63

µs

2.60

Clock Frequency

fCLK

MAX120

0.1

8

MHz

MAX122

0.1

5

DIGITAL INPUTS (CLKIN, CONVST, RD, CS)

Input High Voltage

VIH

Input Low Voltage

VIL

Input Capacitance (Note 4)

2.4

V

0.8

V

10

pF

Input Current

DIGITAL OUTPUTS (INT/BUSY, D11–D0)

VIN = 0V or VDD

±5

µA

Output Low Voltage

Output High Voltage

Leakage Current

Output Capacitance (Note 4)

VOL

VOH

ILKG

ISINK = 1.6mA

ISOURCE = 1mA

VIN = 0V or VDD, D11–D0

VDD - 0.5

0.4

V

V

±5

µA

10

pF

POWER REQUIREMENTS

Positive Supply Voltage

Negative Supply Voltage

Positive Supply Current (Note 6)

Negative Supply Current (Note 6)

Power Dissipation (Note 6)

VDD

VSS

IDD

ISS

Guaranteed by supply rejection test

Guaranteed by supply rejection test

VDD = 5.25V, VSS = -15.75V, VAIN = 0V

VDD = 5.25V, VSS = -15.75V, VAIN = 0V

VDD = 5V, VSS = -12V, VAIN = 0V

4.75

5.25

V

-10.80

-15.75

V

9

15

mA

14

20

mA

210

315

mW

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