MAX121 Просмотр технического описания (PDF) - Maxim Integrated
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MAX121 Datasheet PDF : 26 Pages
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MAX121
308ksps ADC with DSP Interface and 78dB SINAD
Absolute Maximum Ratings
VDD to DGND ..........................................................-0.3V to +6V
VSS to DGND.........................................................+0.3V to -17V
AIN to AGND........................................................................±15V
AGND to DGND..................................................................±0.3V
Digital Inputs to DGNO.............................. -0.3V to (VDD + 0.3V)
(CS, CONVST, MODE, CLKIN, INVCLK, INVFRM)
Digital Outputs to DGND.......................... +0.3V to (VDD + 0.3V)
(SFRM, FSTRT, SCLK, SDATA)
Continuous Power Dissipation (TA = +70°C)
16-Pin PDIP (derate 10.53mW/°C above +70°C)..........842mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW
20-Pin SSOP (derate 8.00mW/°C above +70°C)..........640mW
Operating Temperature Ranges
MAX121C_...........................................................0°C to +70°C
MAX121E_....................................................... -40°C to +85°C
Storage Temperature Range............................ -65°C to + 160°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................+260°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.
Electrical Characteristics
(VDD = 4.75V to 5.25V, VSS = -10.8V to -15.75V, fCLK = 5.5MHz, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
DYNAMIC PERFORMANCE (fS = 308kHz, VAIN = 10VP-P, 50kHz)
Signal-to-Noise Ratio
SINAD Including distortion
MAX121C
MAX121E
Total Harmonic Distortion
THD First five harmonics
Spurious-Free Dynamic Range
SFDR
ACCURACY
Resolution
RES
MIN TYP
75
78
73
77
-85
77
86
14
Differential Nonlinearity (Note 1)
DNL
12 bits no missing codes over temperature
range
±1.5
Integral Nonlinearity
INL
±2
Bipolar Zero Error
Code 00..00 to 00..01 transition,
near VAIN = 0V
Temperature drift
±1
Full-Scale Error (Notes 1, 2)
Full-Scale Temperature Drift
Power-Supply Rejection
ANALOG INPUT
Input Range
Input Current
Input Capacitance (Note 3)
Full-Power Bandwidth
Including reference; adjusted for bipolar
zero error; TA = +25°C
Excluding reference
±1
VDD only, 5V ±5%
±1/2
VSS only, -12V ±10%
±1
VSS only, -15V ±5%
±1
-5
VAIN = 5V (RIN approximately 6kW to REF)
1.5
MAX UNITS
dB
-77
dB
dB
Bits
LSB
LSB
±10
mV
ppm/°C
±0.2
%
ppm/°C
±2
±2
LSB
±2
+5
V
2.5
mA
10
pF
MHz
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