MAX195
16-Bit, 85ksps ADC with 10µA Shutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDDD = VDDA = +5V, VSSD = VSSA = -5V, f
CLK
= 1.7MHz, V
REF
= +5V, 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.
VDDD to DGND .....................................................................+7V
VDDA to AGND......................................................................+7V
VSSD to DGND.........................................................+0.3V to -6V
VSSA to AGND.........................................................+0.3V to -6V
VDDD to VDDA, VSSD to VSSA..........................................±0.3V
AIN, REF ....................................(VSSA - 0.3V) to (VDDA + 0.3V)
AGND to DGND..................................................................±0.3V
Digital Inputs to DGND...............................-0.3V, (VDDA + 0.3V)
Digital Outputs to DGND............................-0.3V, (VDDA + 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ............842mW
Wide SO (derate 9.52mW/°C above +70°C)..................762mW
Ceramic SB (derate 10.53mW/°C above +70°C)...........842mW
Operating Temperature Ranges
MAX195_C_E........................................................0°C to +70°C
MAX195_E_E .....................................................-40°C to +85°C
MAX195_MDE..................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX195A
16 (t
CLK
)
T
A
= +25°C
T
A
= +25°C
Unipolar
V
REF
= 4.75V
MAX195A
MAX195B
MAX195A, V
REF
= 4.75V
VSSA = -5.25V to -4.75V, V
REF
= 4.75V
MAX195B, V
REF
= 4.75V
VDDA = 4.75V to 5.25V, V
REF
= 4.75V
CONDITIONS
MHz1.7f
CLK
Clock Frequency
(Notes 3, 4)
µs9.4t
CONV
Conversion Time
dB-90Peak Spurious Noise (Note 2)
dB-97 -90THD
Total Harmonic Distortion (up to
the 5th harmonic) (Note 2)
V
0 V
REF
Input Range
dB
65
Power-Supply Rejection
Ratio (VDDA and VSSA only)
65
±1
Bits16RESResolution
ppm/°C0.1Full-Scale Tempco
%FSRUnipolar Full-Scale Error ±0.0075
Unipolar/Bipolar Offset Tempco ppm/°C0.4
±0.003
%FSR
±0.004
INLIntegral Nonlinearity
±3
LSB
±4
Unipolar/Bipolar Offset Error
UNITSMIN TYP MAXSYMBOLPARAMETER
Unipolar
pF
250
Input Capacitance
T
A
= +25°C dB87 90SINAD
Signal-to-Noise plus Distortion
Ratio (Note 2)
MHz5f
SCLK
Serial Clock Frequency
Bipolar
Bipolar 125
-V
REF
V
REF
V
REF
= 4.75V %FSRBipolar Full-Scale Error ±0.018
MAX195B
LSB
±2
DNL
ACCURACY (Note 1)
ANALOG INPUT
DYNAMIC PERFORMANCE (f
s
= 85kHz, bipolar range AIN = -5V to +5V, 1kHz) (Note 1)
Differential Nonlinearity
