Datasheet

MAX1106/MAX1107
Single-Supply, Low-Power,
Serial 8-Bit ADCs
_______________________________________________________________________________________ 7
ELECTRICAL CHARACTERISTICS—MAX1107 (continued)
(V
DD
= +4.5V to +5.5V; IN- = GND; f
SCLK
= 2MHz; 25ksps conversion rate; 1µF capacitor at REFOUT; external +4.096V reference at
REFIN; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
External reference
Figure 2, C
LOAD
= 100pF
Internal reference (Note 9)
µs20
ns240t
SHDN
SHDN Fall to Output Disable
ms12
t
WAKE
Wake-Up Time
Figure 2, C
LOAD
= 100pF ns240t
TR
SCLK Low to Output Disable
ns200t
CL
SCLK Pulse Width Low
ns100t
SCC
SCLK Low to CONVST Rise
UNITSMIN TYP MAXSYMBOLPARAMETER
Note 1: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
been calibrated.
Note 2: See
Typical Operating Characteristics .
Note 3: V
REFOUT
= +2.048V (MAX1106), V
REFOUT
= +4.096V (MAX1107), offset nulled.
Note 4: Common-mode range (IN+, IN-) GND to V
DD
.
Note 5: REFOUT supplies typically 2.5mA under normal operating conditions.
Note 6: External load should not change during the conversion for specified accuracy.
Note 7: Power consumption with CMOS levels.
Note 8: Measured as
 V
FS
(2.7V) - V
FS
(3.6V) for MAX1106, and measured as  V
FS
(4.5V) - V
FS
(5.5V) for MAX1107.
Note 9: 1µF at REFOUT, internal reference settling to 0.5LSB.
Typical Operating Characteristics
(V
DD
= +3.0V (MAX1106), V
DD
= +5.0V (MAX1107); f
SCLK
= 2MHz; 25ksps conversion rate; external reference; 1µF at REFOUT;
T
A
= +25°C; unless otherwise noted.)
200
50
2.5 5.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
75
175
MAX1106/07-01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
3.0 3.5 4.0 4.5 5.0
150
125
100
C
LOAD
= 10pF
DOUT = 10101010
C
LOAD
= 10pF
DOUT = 11111111
C
LOAD
= 47pF
DOUT = 10101010
MAX1106 (V
DD
= 2.7V TO 5.5V)
MAX1107 (V
DD
= 4.5V TO 5.5V)
INTERNAL REFERENCE
200
50
-40 100
SUPPLY CURRENT vs. TEMPERATURE
75
175
MAX1106/07-02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
-20020406080
150
125
100
DOUT = 10101010
C
LOAD
= 10pF
INTERNAL REFERENCE
MAX1107, V
DD
= 5.0V
MAX1106, V
DD
= 3.0V
0.50
0
2.5 5.5
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
0.10
0.05
0.45
0.40
MAX1106/07-03
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (µA)
3.0 3.5 4.0 4.5 5.0
0.35
0.30
0.25
0.20
0.15