Instruction Manual

MAX1286–MAX1289
150ksps, 12-Bit, 2-Channel Single-Ended, and
1-Channel True-Differential ADCs in SOT23
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +3.6V, V
REF
= +2.5V for MAX1287/MAX1289, or VDD = +4.75V to +5.25V, V
REF
= +4.096V for MAX1286/MAX1288,
0.1µF capacitor at REF, f
SCLK
= 8MHz (50% duty cycle), AIN- = GND for MAX1288/MAX1289. T
A
= T
MIN
to T
MAX,
unless otherwise
noted. Typical values 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
CNVST, SCLK, DOUT to GND....................-0.3V to (V
DD
+ 0.3V)
REF, AIN1 (AIN+), AIN2 (AIN-) to GND......-0.3V to (V
DD
+ 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SOT23 (derate 9.70mW/°C above T
A
= +70°C)...696mW
Operating Temperature Range ...........................-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 (Note 1)
Resolution 12 Bits
Relative Accuracy (Note 2) INL
±1.0
LSB
Differential Nonlinearity DNL No missing codes over temperature
±1.0
LSB
Offset Error ±2 ±4
LSB
Gain Error (Note 3) ±2 ±4
LSB
Gain Temperature Coefficient
±0.4
ppm/°C
Offset Tem p er atur e C oeffi ci ent
±0.4
p p m/°C
Channel-to-Channel Offset Matching
±0.1
LSB
Channel-to-Channel Gain Matching
±0.1
LSB
Input Common-Mode Rejection CMR V
CM
= 0V to V
DD
; zero scale input
±0.1
mV
DYNAMIC SPECIFICATIONS: (f
IN
(sine-wave) = 10kHz, V
IN
= 4.096Vp-p for MAX1086/MAX1088 or V
IN
= 2.5V
p-p
for MAX1087/MAX1089, 150ksps, f
SCLK
= 8MHz, (50% duty cycle) AIN- = GND for MAX1088/MAX1089)
Signal to Noise Plus Distortion
SINAD
70 dB
Total Harmonic Distortion
(up to the 5
th
harmonic)
THD -80 dB
Spurious-Free Dynamic Range SFDR 80 dB
Full-Power Bandwidth -3dB point 1
MHz
Full-Linear Bandwidth SINAD > 56dB
100
kHz
CONVERSION RATE
Conversion Time t
CONV
Does not include t
ACQ
3.7 µs
T/H Acquisition Time t
ACQ
1.4 µs
Aperture Delay 30 ns
Aperture Jitter
<50
ps
Maximum Serial Clock Frequency f
SCLK
8
MHz
Duty Cycle 30 70 %
ANALOG INPUT
Unipolar 0
V
REF
Input Voltage Range (Note 4)
Bipolar
-V
REF
/2 V
REF
/2
V