Datasheet

MAX1191
Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC
_______________________________________________________________________________________ 5
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Normal operating mode, f
IN
= 1.875MHz
at -0.5dB FS, CLK input from GND to V
DD
4.0 5.0
Idle mode (tri-state), f
IN
= 1.875MHz at -
0.5dB FS, CLK input from GND to V
DD
4.0
Standby mode, CLK input from GND to
V
DD
2.2
mA
Analog Supply Current I
DD
Shutdown mode, CLK = GND or V
DD
,
PD0 = PD1 = OGND
0.1 5.0 µA
Normal operating mode,
f
IN
= 1.875MHz at -0.5dB FS, C
L
≈ 10pF
1.0 mA
Idle mode (tri-state), DC input, CLK =
GND or V
DD
,
PD0 = OV
DD
, PD1 = OGND
0.1 5.0
Standby mode, DC input, CLK = GND or
V
DD,
PD0 = OGND, PD1 = OV
DD
0.1
Digital Output Supply Current
(Note 3)
I
ODD
Shutdown mode, CLK = GND or V
DD
,
PD0 = PD1 = OGND
0.1 5.0
µA
TIMING CHARACTERISTICS
CLK Rise to CHA Output Data
Valid
t
DOA
50% of C LK to 50% of d ata, Fi g ur e 5
( N ote 4)
1 6 8.5 ns
CLK Fall to CHB Output Data
Valid
t
DOB
50% of C LK to 50% of d ata, Fi g ur e 5
( N ote 4)
1 6 8.5 ns
CLK Rise/Fall to A/B Rise/Fall
Time
t
DA/B
50% of C LK to 50% of A/B, Fi g ur e 5
( N ote 4)
1 6 8.5 ns
PD1 Rise to Output Enable t
EN
PD0 = OV
DD
5ns
PD1 Fall to Output Disable t
DIS
PD0 = OV
DD
5ns
CLK Duty Cycle 50 %
CLK Duty-Cycle Variation ±10 %
Wake-Up Time from Shutdown
Mode
t
WAKE
,
SD
(Note 5) 20 µs
Wake-Up Time from Standby
Mode
t
WAKE
,
ST
(Note 5) 5.5 µs
Digital Output Rise/Fall Time 20% to 80% 2 ns
INTERCHANNEL CHARACTERISTICS
Crosstalk Rejection
f
IN,X
= 1.875MHz at -0.5dB FS,
f
IN,Y
= 0.3MHz at -0.5dB FS (Note 6)
-75 dB
Amplitude Matching f
IN
= 1.875MHz at -0.5dB FS (Note 7) ±0.03 dB
Phase Matching f
IN
= 1.875MHz at -0.5dB FS (Note 7) ±0.03 Degrees
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3.0V, OV
DD
= 1.8V, V
REFIN
= V
DD
(internal reference), C
L
≈ 10pF at digital outputs, f
CLK
= 7.5MHz, C
REFP
= C
REFN
= C
COM
= 0.33µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)