Datasheet

MAX1070/MAX1071
1.5Msps, Single-Supply, Low-Power,
True-Differential, 10-Bit ADCs
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ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +3.6V, V
L
= V
DD
, V
REF
= 2.048V, f
SCLK
= 24.0MHz, 50% duty cycle, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at V
DD
= 3V and T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
ANALOG INPUTS (AIN+, AIN-)
AIN+ - AIN-, MAX1070 0
V
REF
Differential Input Voltage Range
V
IN
AIN+ - AIN-, MAX1071
-V
REF
/ 2 +V
REF
/ 2
V
Absolute Input Voltage Range 0
V
DD
V
DC Leakage Current ±1 µA
Input Capacitance Per input pin 16 pF
Input Current (Average)
Time averaged at maximum throughput rate
50 µA
REFERENCE INPUT (REF)
REF Input Voltage Range V
REF
1.0
V
DD
+
50mV
V
Input Capacitance 20 pF
DC Leakage Current ±1 µA
Input Current (Average)
Time averaged at maximum throughput rate
200 µA
DIGITAL INPUTS (SCLK, CNVST)
Input-Voltage Low VIL
0.3 x V
L
V
Input-Voltage High VIH 0.7 x V
L
V
Input Leakage Current I
IL
0.05 ±10
µA
DIGITAL OUTPUT (DOUT)
Output Load Capacitance C
OUT
For stated timing performance 30 pF
Output-Voltage Low V
OL
I
SINK
= 5mA, V
L
≥ 1.8V 0.4 V
Output-Voltage High V
OH
I
SOURCE
= 1mA, V
L
≥ 1.8V
V
L
- 0.5V
V
Output Leakage Current I
OL
Output high impedance
±0.2 ±10
µA
POWER REQUIREMENTS
Analog Supply Voltage V
DD
2.7 3.6 V
Digital Supply Voltage V
L
1.8
V
DD
V
Static, f
SCLK
= 24.0
57
Static, no SCLK 4 5
Analog Supply Current,
Normal Mode
I
DD
Operational, 1.5Msps 6 8
mA
f
SCLK
= 24.0MHz 1
Analog Supply Current,
Partial Power-Down Mode
I
DD
No SCLK 1
mA
f
SCLK
= 24.0MHz 1
Analog Supply Current,
Full Power-Down Mode
I
DD
No SCLK
0.3
1
µA
Operational, full-scale input at 1.5Msps
0.3 1
Static, f
SCLK
= 24.0MHz
0.15 0.5
Partial/full power-down mode,
f
SCLK
= 24.0MHz
0.1 0.3
mA
Digital Supply Current (Note 8)
Static, no SCLK (all modes)
0.1
1
µA
Positive-Supply Rejection PSR Full-scale input, 3V +20%, -10%
±0.2 ±3.0
mV