MAX1225 Maxim Integrated Products, MAX1225 Datasheet - Page 3

• Manufacturer Part Number: MAX1225
• Description: (MAX1224 / MAX1225) 12-Bit ADCs
• Manufacturer: Maxim Integrated Products

www.DataSheet4U.com
ELECTRICAL CHARACTERISTICS (continued)
(V
Typical values are at V
ANALOG INPUTS (AIN+, AIN-)
Differential Input Voltage Range
Absolute Input Voltage Range
DC Leakage Current
Input Capacitance
Input Current (Average)
REFERENCE INPUT (REF)
REF Input Voltage Range
Input Capacitance
DC Leakage Current
Input Current (Average)
DIGITAL INPUTS (SCLK, CNVST)
Input-Voltage Low
Input-Voltage High
Input Leakage Current
DIGITAL OUTPUT (DOUT)
Output Load Capacitance
Output-Voltage Low
Output-Voltage High
Output Leakage Current
POWER REQUIREMENTS
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current,
Normal Mode
Analog Supply Current,
Partial Power-Down Mode
Analog Supply Current,
Full Power-Down Mode
Digital Supply Current (Note 8)
Positive-Supply Rejection
DD
= +2.7V to +3.6V, V
PARAMETER
_______________________________________________________________________________________
DD
= 3V and T
L
= V
DD
1.5Msps, Single-Supply, Low-Power,
, V
A
REF
SYMBOL
= +25°C.)
C
V
V
V
PSR
V
VIH
I
I
I
V
VIL
I
V
REF
I
OUT
DD
DD
DD
OL
OH
= 2.048V, f
DD
IL
OL
IN
L
AIN+ - AIN-, MAX1224
AIN+ - AIN-, MAX1225
Per input pin
Time averaged at maximum throughput rate
Time averaged at maximum throughput rate
For stated timing performance
I
I
Output high impedance
Static, f
Static, no SCLK
Operational, 1.5Msps
f
No SCLK
f
No SCLK
Operational, full-scale input at 1.5Msps
Static, f
Partial/full power-down mode,
f
Static, no SCLK, all modes
Full-scale input, 3V +20%, -10%
SINK
SOURCE
SCLK
SCLK
SCLK
True-Differential, 12-Bit ADCs
SCLK
= 5mA, V
= 24.0MHz
= 24.0MHz
= 24.0MHz
SCLK
SCLK
= 24.0MHz, 50% duty cycle, T
= 1mA, V
= 24.0MHz
= 24.0MHz
L
CONDITIONS
1.8V
L
1.8V
A
= T
MIN
V
-V
0.7 x V
L
MIN
REF
1.0
2.7
1.8
- 0.5V
0
0
to T
/ 2
L
MAX
TYP
0.05
±0.2
0.15
±0.2
200
0.3
0.3
0.1
0.1
16
50
20
, unless otherwise noted.
5
4
6
1
1
1
+V
0.3 x V
V
50mV
MAX
V
REF
±3.0
V
V
±10
±10
DD
0.4
3.6
0.5
0.3
±1
±1
30
REF
DD
DD
7
5
8
1
1
1
/ 2
+
L
UNITS
mA
mA
mA
mV
µA
pF
µA
pF
µA
µA
µA
pF
µA
µA
µA
V
V
V
V
V
V
V
V
V
3