Rainbow Electronics MAX1181 - Manual (Page 4)

MAX1181
Dual 10-Bit, 80Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
4 _______________________________________________________________________________________
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Differential Reference Input
Voltage
∆V
REF
∆V
REF = V REFP - V REFN
1.024
± 10%
V
COM Input Voltage V
COM
V
DD
/2
± 10%
V
REFP Input Voltage V REFP
V COM
+ ∆V
REF /2
V
REFN Input Voltage V REFN
V COM
- ∆V
REF /2
V
DIGITAL INPUTS (CLK, PD, OE, SLEEP, T/B)
CLK
0.8 x
V DD
Input High Threshold V IH
PD, OE, SLEEP, T/B
0.8 x
OV DD
V
CLK
0.2 x
V DD
Input Low Threshold V IL
PD, OE, SLEEP, T/B
0.2 x
OV DD
V
Input Hysteresis V HYST 0.1 V
I IH V IH = OV DD or V DD (CLK) ±5
Input Leakage
I
IL
V
IL
= 0 ±5
µA
Input Capacitance C IN 5 pF
DIGITAL OUTPUTS (D9A–D0A, D9B–D0B)
Output Voltage Low V OL I SINK = 200µA 0.2 V
Output Voltage High V OH I SOURCE = 200µA
OV DD
- 0.2
V
Three-State Leakage Current I LEAK
OE = OV
DD
±10 µA
Three-State Output Capacitance C OUT
OE = OV
DD 5 pF
POWER REQUIREMENTS
Analog Supply Voltage Range V DD 2.7 3.0 3.6 V
Output Supply Voltage Range OV
DD
1.7 2.5 3.6 V
Operating, f INA or B = 20MHz at -0.5dB FS 82 97
Sleep mode 2.8
mA
Analog Supply Current I
VDD
Shutdown, clock idle, PD = OE = OV DD 1 15 µA
Operating, C L = 15pF , f INA or B = 20MHz at
-0.5dB FS
13 mA
Sleep mode 100 µA
Output Supply Current I
OVDD
Shutdown, clock idle, PD = OE = OV DD 2 10 µA
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3V, OV
DD
= +2.5V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through
a 10k Ω resistor, V
IN = 2V p-p (differential w.r.t. COM), C L = 10pF at digital outputs (Note 5), f CLK = 83.333MHz (50% duty cycle), T A =
T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)