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LTC2283IUP

Dual 12-Bit, 125Msps Low Power 3V ADC

Linear Technology 

LTC2283

CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 4)

PARAMETER

CONDITIONS

MIN TYP MAX

UNITS

Offset Matching

±2

mV

Transition Noise

SENSE = 1V

0.32

LSBRMS

ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise

specifications are at TA = 25°C. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Analog Input Range (AIN+ –AIN–)

2.85V < VDD < 3.4V (Note 7)

●

±0.5V to ±1V

V

VIN,CM

Analog Input Common Mode (AIN+ +AIN–)/2

Differential Input Drive (Note 7)

●

1

1.5

1.9

V

Single Ended Input Drive (Note 7) ● 0.5

1.5

2

V

IIN

Analog Input Leakage Current

0V < AIN+, AIN– < VDD

● –1

1

μA

ISENSE

SENSEA, SENSEB Input Leakage

0V < SENSEA, SENSEB < 1V

● –3

3

μA

IMODE

MODE Input Leakage Current

0V < MODE < VDD

● –3

3

μA

tAP

Sample-and-Hold Acquisition Delay Time

0

ns

tJITTER

Sample-and-Hold Acquisition Delay Time Jitter

0.2

psRMS

CMRR Analog Input Common Mode Rejection Ratio

80

dB

Full Power Bandwidth

Figure 8 Test Circuit

640

MHz

DYNAMIC ACCURACY The l denotes the specifications which apply over the full operating temperature range,

otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX

UNITS

SNR

Signal-to-Noise Ratio

5MHz Input

70.2

dB

30MHz Input

70.1

dB

70MHz Input

● 68 70

dB

140MHz Input

69.6

dB

SFDR

Spurious Free Dynamic Range

2nd or 3rd Harmonic

5MHz Input

30MHz Input

88

dB

85

dB

70MHz Input

● 70 82

dB

140MHz Input

78

dB

SFDR

Spurious Free Dynamic Range

4th Harmonic or Higher

5MHz Input

30MHz Input

90

dB

90

dB

70MHz Input

● 77 90

dB

140MHz Input

90

dB

S/(N+D)

Signal-to-Noise Plus Distortion Ratio

5MHz Input

69.8

dB

30MHz Input

69.7

dB

70MHz Input

● 67 69.6

dB

140MHz Input

69.5

dB

IMD

Intermodulation Distortion

Crosstalk

fIN = 40MHz, 41MHz

fIN = 100MHz

85

dB

–110

dB

2283fb

3

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