Datasheet

MAX11120–MAX11128
1Msps, Low-Power, Serial 12-/10-/8-Bit,
4-/8-/16-Channel ADCs
10Maxim Integrated
ELECTRICAL CHARACTERISTICS (MAX11120/MAX11123/MAX11126) (continued)
(V
DD
= 2.35V to 3.6V, V
OVDD
= 1.5V to 3.6V, f
SAMPLE
= 1Msps, f
SCLK
= 16MHz, 50% duty cycle, V
REF+
= V
DD
, T
A
= -40NC to +125NC,
unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
EXTERNAL REFERENCE INPUT
REF- Input Voltage Range V
REF-
-0.3 +1 V
REF+ Input Voltage Range V
REF+
1
V
DD
+
50mV
V
REF+ Input Current I
REF+
V
REF+
= 2.5V, f
SAMPLE
= 1Msps 36.7
FA
V
REF+
= 2.5V, f
SAMPLE
= 0 0.1
FA
DIGITAL INPUTS (SCLK, DIN, CS, CNVST)
Input Voltage Low V
IL
V
OVDD
O
0.25
V
Input Voltage High V
IH
V
OVDD
O
0.75
V
Input Hysteresis V
HYST
V
OVDD
O
0.15
mV
Input Leakage Current I
IN
V
AIN_
= 0V or V
DD
±0.09
FA
Input Capacitance C
IN
3 pF
DIGITAL OUTPUTS (DOUT, EOC)
Output Voltage Low V
OL
I
SINK
= 200FA
V
OVDD
O
0.15
V
Output Voltage High V
OH
I
SOURCE
= 200FA
V
OVDD
O
0.85
V
Three-State Leakage Current I
L
CS = V
DD
-0.3
FA
Three-State Output Capacitance C
OUT
CS = V
DD
4 pF
POWER REQUIREMENTS
Positive Supply Voltage V
DD
2.35 3.0 3.6 V
Digital I/O Supply Voltage V
OVDD
1.5 3.0 3.6 V
Positive Supply Current I
DD
f
SAMPLE
= 1Msps 1.8 2.5
mAf
SAMPLE
= 0 1.0
Full shutdown 0.0015 0.006
Power Dissipation
Normal mode (external
reference)
V
DD
= 3V,
f
SAMPLE
= 1Msps
5.4
mW
V
DD
= 2.35V,
f
SAMPLE
= 1Msps
3.8
AutoStandby
V
DD
= 3V,
f
SAMPLE
= 1Msps
2.6
V
DD
= 2.35V,
f
SAMPLE
= 1Msps
1.6
Full/
AutoShutdown
V
DD
= 3V 4.5
FW
V
DD
= 2.35V 2.1