MAX125
MAX125/MAX126
2x4-Channel, Simultaneous-Sampling
14-Bit DAS
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AVDD= +5V ±5%, AVSS= -5V ±5%, DVDD= +5V ±5%, V
REFIN
= 2.5V, AGND = DGND = 0V, 4.7µF capacitor from REFOUT to
AGND, 0.1µF capacitor from REFIN to AGND, f
CLK
= 16MHz, external clock, 50% duty cycle, TA= 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.
AVDDto AGND ...........................................................-0.3V to 6V
AVSSto AGND............................................................0.3V to -6V
DVDDto DGND...........................................................-0.3V to 6V
AGND to DGND.......................................................-0.3V to 0.3V
CH_ _ to AGND....................................................................±17V
REFIN, REFOUT to AGND ..........................................-0.3V to 6V
Digital Inputs/Outputs to DGND ..............-0.3V to (DVDD+ 0.3V)
Continuous Power Dissipation (TA= +70°C)
SSOP (derate 11.8mW/°C above +70°C) .....................941mW
Operating Temperature Ranges
MAX125_CAX/MAX126_CAX...............................0°C to +70°C
MAX125_EAX/MAX126_EAX ............................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec)................................300°C
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
All channels 14NResolution
MAX125A/MAX126A
Bits
±2
INL
Integral Nonlinearity
(Note 2)
MAX12_B/C
LSB
±2 ±4
MAX12_A/B, guaranteed monotonic to 14 bits ±1
TA= +25°C
mV
±5 ±15
Bipolar Zero Error
TA= T
MIN
to T
MAX
±25
Bipolar Zero-Error Match Between all channels mV1.2 5
±5 ppm/°CZero-Code Tempco
±5 ±10
mVGain Error
±15TA= T
MIN
to T
MAX
TA= +25°C
1.2 5 mVGain Error Match
±5
Between all channels
Gain Error Tempco ppm/°C
72 75
SINAD
Single-channel mode,
channel 1A, 250ksps
Signal-to-Noise Plus
Distortion (Note 4)
dB
-89 -80THD Single-channel mode, channel 1A, 250ksps
Total Harmonic
Distortion (Notes 4, 5)
dB
80 90SFDR Single-channel mode, channel 1A, 250ksps
Spurious-Free Dynamic
Range (Note 4)
dB
80Single-channel mode, channel 1A, 250ksps
Channel-to-Channel
Isolation (Note 6)
dB
MAX125C/MAX126C,
guaranteed monotonic to 13 bits
LSB
±2
DNLDifferential Nonlinearity
DC ACCURACY (Note 1)
DYNAMIC PERFORMANCE (f
CLK
= 16MHz, fIN= 10.06kHz) (Notes 1, 3)
70 72
MAX125
MAX126