MAX157/MAX159
+2.7V, Low-Power, 2-Channel,
108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +5.25V, V
REF
= 2.5V, 0.1µF capacitor at REF, f
SCLK
= 2.17MHz, 16 clocks/conversion cycle (108ksps),
CH- = GND for MAX159, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
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 +6V
CH0, CH1 (CH+, CH-) to GND...................-0.3V to (V
DD
+ 0.3V)
REF to GND................................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs to GND ...............................................-0.3V to +6V
DOUT to GND.............................................-0.3V to (V
DD
+ 0.3V)
DOUT Sink Current ............................................................ 25mA
Continuous Power Dissipation (T
A
= +70°C)
µMAX (derate 4.1mW/°C above +70°C) ......................330mW
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
CERDIP (derate 8.00mW/°C above +70°C).................640mW
Operating Temperature Ranges
MAX157/MAX159_C_A .......................................0°C to +70°C
MAX157/MAX159_E_A ....................................-40°C to +85°C
MAX157/MAX159_MJA................................. -55°C to +125°C
Storage Temperature Range.............................-60°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
DC ACCURACY (Note 1)
DYNAMIC SPECIFICATIONS (f
IN
(sine wave) = 10kHz, V
IN
= 2.5Vp-p, 108ksps, external f
SCLK
= 2.17MHz, CH- = GND for MAX159)
PARAMETER SYMBOL MIN TYP MAX UNITS
Gain Error (Note 3)
±2
LSB
Offset Error
±2
LSB
Differential Nonlinearity DNL
±0.5
LSB
±1
Gain Temperature Coefficient
±0.8
ppm/°C
Channel-to-Channel Offset
Matching
±0.02
LSB
Channel-to-Channel Gain
Matching
±0.02
LSB
Resolution RES
10
Bits
Relative Accuracy (Note 2) INL
±0.5
LSB
Signal-to-Noise Ratio plus
Distortion
SINAD
66
dB
Total Harmonic Distortion
(including 5th-order harmonic)
THD
-70
dB
Spurious-Free Dynamic Range SFDR
70
dB
Channel-to-Channel Crosstalk
-75
dB
Small-Signal Bandwidth
2.25
MHz
Full-Power Bandwidth
1.0
MHz
CONDITIONS
No missing codes over temperature
MAX15_B
External reference, V
REF
= 2.5V
f
IN
= 65kHz, V
IN
= 2.5Vp-p (Note 4)
-3dB rolloff
MAX15_A
