Electrical characteristics (continued) – Rainbow Electronics MAX1446 User Manual
Page 4
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CLK
0.2 x
V
DD
Input Low Threshold
V
IL
PD, OE
0.2 x
OV
D D
V
Input Hysteresis
V
HYST
0.1
V
I
IH
V
IH
= V
DD
= OV
DD
±5
Input Leakage
I
IL
V
IL
= 0
±5
µA
Input Capacitance
C
IN
5
pF
DIGITAL OUTPUTS (D9–D0)
Output Voltage Low
V
OL
I
SINK
= 200
µA
0.2
V
Output Voltage High
V
OH
I
SOURCE
= 200
µA
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
V
DD
2.7
3.0
3.6
V
Output Supply Voltage
OV
DD
C
L
= 10pF
1.7
3.0
3.6
V
Operating, f
IN
= 19.943MHz at -0.5dBFS
30
37
mA
Analog Supply Current
I
VDD
Shutdown, clock idle, PD = OE = OV
DD
4
15
µA
Operating, C
L
= 15pF, f
IN
= 19.943MHz at
-0.5dBFS
7
mA
Output Supply Current
I
OVDD
Shutdown, clock idle, PD = OE = OV
DD
1
10
µA
Offset
± 0.1
mV/V
Power-Supply Rejection
PSRR
Gain
± 0.1
%/V
TIMING CHARACTERISTICS
CLK Rise to Output Data Valid
t
DO
Figure 5 (Note 3)
5
8
ns
OE Fall to Output Enable
t
ENABLE
Figure 5
10
ns
OE Rise to Output Disable
t
DISABLE
Figure 5
1.5
ns
CLK Pulse Width High
t
CH
Figure 6, clock period 16ns
8.3
± 2.5
ns
CLK Pulse Width Low
t
CL
Figure 6, clock period 16ns
8.3
± 2.5
ns
Wake-Up Time
t
WAKE
(Note 4)
1.5
µs
Note 1: SNR, SINAD, THD, SFDR, and HD3 are based on an analog input voltage of -0.5dBFS referenced to a +1.024V full-scale
input voltage range.
Note 2: Intermodulation distortion is the total power of the intermodulation products relative to the individual carrier. This number is
6dB better, if referenced to the two-tone envelope.
Note 3: Digital outputs settle to V
IH
, V
IL
.
Note 4: With R
EFIN
driven externally, REFP, COM, and REFN are left floating while powered down.
MAX1446
10-Bit, 60Msps, +3.0V, Low-Power
ADC with Internal Reference
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.0V, OV
DD
= +2.7V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; V
REFIN
= +2.048V, REFOUT con-
nected to REFIN through a 10k
Ω resistor, V
IN
= 2Vp-p (differential with respect to COM), C
L
≈ 10pF at digital outputs, f
CLK
=
62.5MHz (50% duty cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
°C.)