MAX1420 查看數據表（PDF） - Maxim Integrated
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MAX1420 Datasheet PDF : 17 Pages
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12-Bit, 60Msps, 3.3V, Low-Power ADC
with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = 3.3V, AGND = DGND = 0, VIN = ±1.024V, differential input voltage at -0.5dBFS, internal reference, fCLK =
62.5MHz (50% duty cycle); digital output load CL = 10pF, ≥+25°C guaranteed by production test, <+25°C guaranteed by design and
characterization. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
Differential Gain
DG
Differential Phase
DP
ANALOG INPUTS (INP, INN, CML)
Input Resistance
RIN
Input Capacitance
CIN
Common-Mode Input Level
(Note 5)
VCML
CONDITIONS
Either input to ground
Either input to ground
MIN
TYP MAX UNITS
±1
%
±0.25
Degrees
22
kΩ
4
pF
VAVDD
x 0.5
V
Common-Mode Input Voltage
Range (Note 5)
Differential Input Range
Small-Signal Bandwidth
Large-Signal Bandwidth
Overvoltage Recovery
VCMVR
VIN
BW-3dB
FPBW-3dB
OVR
VINP - VINN (Note 6)
(Note 7)
(Note 7)
1.5 x FS input
INTERNAL REFERENCE (REFIN bypassed with 0.22µF in parallel with 1nF)
Common-Mode Reference
Voltage
VCML
At CML
VCML
± 5%
±VDIFF
400
150
1
VAVDD
_ 0.5
V
V
MHz
MHz
Clock
cycles
V
Positive Reference Voltage
VREFP
At REFP
VCML
+ 0.512
V
Negative Reference Voltage
VREFN
At REFN
VCML
- 0.512
V
Differential Reference Voltage
VDIFF
(Note 6)
1.024 ±5%
V
Differential Reference
Temperature Coefficient
REFTC
±100
ppm/°C
EXTERNAL REFERENCE (VREFIN = 2.048V)
REFIN Input Resistance
RIN
REFIN Input Capacitance
CIN
REFIN Reference Input Voltage
VREFIN
(Note 8)
5
kΩ
10
pF
2.048
±10%
V
Differential Reference Voltage
VDIFF
(Note 6)
0.92 x
VREFIN/2
VREFIN/2
1.08 x
VREFIN/2
V
EXTERNAL REFERENCE (VREFIN = 0, reference voltage applied to REFP, REFN, and CML)
REFP, REFN, CML Input Current
IIN
-200
200
µA
REFP, REFN, CML Input
Capacitance
CIN
15
pF
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