Datasheet

MAX1117/MAX1118/MAX1119
Single-Supply, Low-Power,
2-Channel, Serial 8-Bit ADCs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +3.6V (MAX1117), V
DD
= +4.5V to +5.5V (MAX1119), V
DD
= REF = +2.7V to +5.5V (MAX1118),T
A
= T
MIN
to T
MAX
,
unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD
to GND...........................................................-0.3V to +6.0V
CH0,CH1, REF to GND...............................-0.3V to (V
DD
+ 0.3V)
Digital Output to GND ................................-0.3V to (V
DD
+ 0.3V)
Digital Input to GND ..............................................-0.3V to +6.0V
Maximum Current into Any Pin .........................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SOT23 (derate 8.9mW/°C above +70°C)............714mW
Operating Temperature Range
MAX1117EKA ..................................................-40°C to + 85°C
MAX1118EKA ..................................................-40°C to + 85°C
MAX1119EKA ..................................................-40°C to + 85°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
DC ACCURACY
Resolution
8
Bits
Relative Accuracy (Note 1) INL
±1
LSB
Differential Nonlinearity DNL
±1
LSB
Offset Error
±0.5
LSB
MAX1118, REF = V
DD
±1
LSB
Gain Error
MAX1117/MAX1119
±5
%FSR
MAX1118
±5
Gain Temperature Coefficient
MAX1117/MAX1119
±90
ppm/°C
Total Unadjusted Error TUE MAX1118
±0.5 ±1
LSB
Channel-to-Channnel Offset
Matching
±0.1 LSB
DYNAMIC PERFORMANCE (25kHz sinewave input, V
IN
= V
REF(pp)
, f
SCLK
= 5MHz, f
sample
= 100ksps, R
IN
= 100Ω)
Signal-to-Noise Plus Distortion
SINAD
48
dB
Total Harmonic Distortion
(Up to the 5th Harmonic)
THD
-69
dB
Spurious-Free Dynamic Range SFDR
66
dB
Small Signal Bandwidth f
-3dB
4
MHz
ANALOG INPUT
Input Voltage Range
0V
REF
V
Input Leakage
Current
V
CH
_ = 0 or V
DD
±0.7 ±10 µA
Input Capacitance C
IN
18
pF
INTERNAL REFERENCE
MAX1117
2.048
Voltage V
REF
MAX1119
4.096
V