Datasheet

MAX1167/MAX1168
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
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.
AV
DD
to AGND .........................................................-0.3V to +6V
DV
DD
to DGND.........................................................-0.3V to +6V
DGND to AGND.....................................................-0.3V to +0.3V
AIN_, REF, REFCAP to AGND..................-0.3V to (AV
DD
+ 0.3V)
SCLK, CS, DSEL, DSPR, DIN to DGND ...................-0.3V to +6V
DOUT, DSPX, EOC to DGND...................-0.3V to (DV
DD
+ 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
24-Pin QSOP (derate 9.5mW/°C above +70°C)...........762mW
Operating Temperature Ranges
MAX116_ _ CE_ ..................................................0°C to +70°C
MAX116_ _ EE_ ...............................................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(AV
DD
= DV
DD
= +4.75V to +5.25V, f
SCLK
= 4.8MHz external clock (50% duty cycle), 24 clocks/conversion (200ksps), external V
REF
= +4.096V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC ACCURACY (Note 1)
Resolution 16 Bits
Relative Accuracy (Note 2) INL MAX116_B ±1.8 ±3LSB
Differential Nonlinearity DNL
MAX116_B
(16 bit, no missing codes over temperature)
16-bit
NMC
+0.7 +1.75 LSB
External reference 0.7
Transition Noise
RMS
noise
Internal reference 0.8
LSB
RMS
Offset Error ±0.1 ±10 mV
Gain Error (Note 3) ±0.01 ±0.2 %FSR
Offset Drift 1 ppm/°C
Gain Drift (Note 3) ±1.2 ppm/°C
DYNAMIC SPECIFICATIONS (1kHz sine wave, 4.096V
P-P
) (Note 1)
Signal-to-Noise Plus Distortion SINAD 85 88.5 dB
Signal-to-Noise Ratio SNR 86 88.5 dB
Total Harmonic Distortion THD -100 -88 dB
Spurious-Free Dynamic Range SFDR 88 101 dB
Full-Power Bandwidth -3dB point 4 MHz
Full-Linear Bandwidth SINAD > 85dB 10 kHz
Channel-to-Channel Isolation (Note 4) 96 dB
CONVERSION RATE
Internal clock, no data transfer,
single conversion (Note 5)
5.52 7.07
Conversion Time t
CONV
External clock 3.75
μs
Acquisition Time t
ACQ
(Note 6) 729 ns
External clock, data transfer and conversion 0.1 4.8
Serial Clock Frequency f
SCLK
External clock, data transfer only 9
MHz