Datasheet

V
DD
to GND ............................................................-0.3V to +6V
V
L
............................................................. -0.3V to (V
DD
+ 0.3V)
V
SS
to GND ............................................................. +0.3V to -6V
V
DD
to V
SS
............................................................ -0.3V to +12V
CH0–CH7 to GND ......................... (V
SS
- 0.3V) to (V
DD
+ 0.3V)
CH0–CH7 Total Input Current ..........................................±20mA
REF to GND ............................................. -0.3V to (V
DD
+ 0.3V)
REFADJ to GND ....................................... -0.3V to (V
DD
+ 0.3V)
Digital Inputs to GND ............................... -0.3V to (V
DD
+ 0.3V)
Digital Outputs to GND ................................-0.3V to (V
L
+ 0.3V)
Digital Output Sink Current ................................................25mA
Continuous Power Dissipation (T
A
= +70°C)
PDIP (derate 11.11mW/°C above +70°C) ....................889mW
SSOP (derate 8.00mW/°C above +70°C) ....................640mW
Operating Temperature Ranges
MAX1202_C_P/MAX1203_C_P ..........................0°C to +70°C
MAX1202_E_P/MAX1203_E_P ...................... -40°C to +85°C
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) ....................................... +260°C
(V
DD
= +5V ±5%, V
L
= 2.7V to 3.6V; V
SS
= 0V or -5V ±5%; f
SCLK
= 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion
cycle (133ksps); MAX1202—4.7μF capacitor at REF pin; MAX1203—external reference, V
REF
= 4.096V applied to REF pin; T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC ACCURACY (Note 1)
Resolution RES 12 Bits
Relative Accuracy (Note 2) INL
MAX1202A/MAX1203A ±0.5
LSB
MAX1202B/MAX1203B ±1.0
Differential Nonlinearity DNL no missing codes over temperature ±1.0 LSB
Offset Error ±3.0 LSB
Gain Error (Note 3)
MAX1202 (all grades) ±3
LSB
External reference,
4.096V
MAX1203A ±1.5
MAX1203B ±3
Gain Temperature Coefcient External reference, 4.096V ±0.8 ppm/°C
Channel-to-Channel Offset Matching ±0.1 LSB
DYNAMIC SPECIFICATIONS (10kHz sine-wave input, 4.096V
P-P
, 133ksps, 2.0MHz external clock, bipolar-input mode)
Signal-to-Noise Plus Distortion Ratio SINAD 70 dB
Total Harmonic Distortion (up to the
5th Harmonic)
THD -80 dB
Spurious-Free Dynamic Range SFDR 80 dB
Channel-to-Channel Crosstalk V
IN
= 4.096V
P-P
, 65kHz (Note 4) -85 dB
Small-Signal Bandwidth -3dB rolloff 4.5 MHz
Full-Power Bandwidth 800 kHz
MAX1202/MAX1203 5V, 8-Channel, Serial, 12-Bit ADCs
with 3V Digital Interface
www.maximintegrated.com
Maxim Integrated
2
Absolute Maximum Ratings
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.
Electrical Characteristics