Rainbow Electronics MAX1420 - Manual (Page 4)

MAX1420
12-Bit, 60Msps, +3.3V, Low-Power ADC
with Internal Reference
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V AVDD = V DVDD = +3.3V, AGND = DGND = 0, V IN = ±1.024V, differential input voltage at -0.5dB FS, internal reference, f CLK =
62.5MHz (50% duty cycle), digital output load C L
≈ 10pF, T
A = T MIN to T MAX , unless otherwise noted. Typical values are at
T A = +25 °C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Differential Reference Voltage
Range
V DIFF V DIFF = V REFP - V REFN
1.024
±10%
V
CML Input Voltage Range V CML
1.65
±10%
V
REFP Input Voltage Range V REFP
V CML +
V DIFF /2
V
REFN Input Voltage Range V REFN
V CML -
V DIFF /2
V
DIGITAL INPUTS (CLK, CLK, PD, OE)
Input Logic High V IH
0.7 x
V DVDD
V
Input Logic Low V IL
0.3 x
V DVDD
V
CLK, CLK ±330
PD -20 20 Input Current
OE -20 20
µA
Input Capacitance 10 pF
DIGITAL OUTPUTS (D0–D11)
Output Logic High V
OH
I
OH
= 200µA
V
DVDD
- 0.5
V
DVDD
V
Output Logic Low V OL I OL = -200µA 0 0.5 V
Three-State Leakage -10 10 µA
Three-State Capacitance 2 pF
POWER REQUIREMENTS
Analog Supply Voltage V AVDD 3.135 3.3 3.465 V
Digital Supply Voltage V DVDD 2.7 3.3 3.63 V
Analog Supply Current I AVDD 67 78 mA
Analog Supply Current with
Internal Reference in Shutdown
REFIN = AGND 66 76 mA
Analog Shutdown Current PD = D VDD 10 20 µA
Digital Supply Current I DVDD 8 mA
Digital Shutdown Current PD = V DVDD 20 µA
Power Dissipation P DISS Analog power dissipation 221 258 mW
Power Dissipation with Internal
Reference in Shutdown (Note 8)
P DISS REFIN = AGND 218 251 mW