Datasheet
MAX11014/MAX11015
Automatic RF MESFET Amplifier
Drain-Current Controllers
4 _______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS MIN
TYP MAX UNITS
ADC DYNAMIC ACCURACY (1kHz sine-wave input, -0.5dB from full scale, 94.4ksps)
Signal-to-Noise Plus Distortion SINAD 70 dB
Total Harmonic Distortion THD Up to the 5th harmonic
-84
dB
Spurious-Free Dynamic Range SFDR 86 dB
Intermodulation Distortion IMD f
IN1
= 9.9kHz, f
IN2
= 10.2kHz 76 dB
Full-Power Bandwidth -3dB point 1
MHz
Full-Linear Bandwidth S / (N + D) > 68dB
100
kHz
ADC CONVERSION RATE
External reference
0.8
Power-Up Time t
PU
Internal reference 50
µs
GATE_ and sense voltage measurements
40
Acquisition Time (Note 3) t
ACQ
All other measurements 1.5
µs
Conversion Time t
CONV
Internally clocked 6.5 µs
Aperture Delay 30 ns
ADCIN1, ADCIN2 INPUTS
Input Range
V
ADCIN_
Relative to AGND (Note 7) 0
V
REFADC
V
Input Leakage Current V
ADCIN_
= 0V or V
AVDD
±0.01
±1 µA
Input Capacitance
C
ADCIN_
34 pF
TEMPERATURE MEASUREMENTS
T
J
= +25°C
±0.25
T
J
= -40°C to +85°C (Note 3)
±1.0
±2.5
Internal Sensor Measurement
Error
T
J
= -40°C to +105°C (Note 3)
±1.0
±3.5
°C
T
J
= +25°C
±1.0
External Sensor Measurement
Error (Note 8)
T
J
= -40°C to +105°C ±3
°C
Temperature Resolution
0.125 °C/LSB
External Diode Drive 3.26
75.00
µA
External Temperature Sensor
Drive Current Ratio
16.6
INTERNAL REFERENCE
Reference Output Voltage V
REFADC
= V
REFDAC
, T
J
= +25°C
+2.490 +2.500 +2.510
V
Reference Output Temperature
Coefficient
±15
ppm/
o
C
Reference Output Impedance 6.5 kΩ
Power-Supply Rejection Ratio PSRR V
AVDD
= +5V ±5% -83 dB
ELECTRICAL CHARACTERISTICS (continued)
(V
GATEVSS
= V
AVSS
= -5.5V to -4.75V, V
AVDD
= +4.75V to +5.25V, V
DVDD
= +2.7V to V
AVDD
, external V
REFADC
= +2.5V, external
V
REFDAC
= +2.5V, C
REFADC
= C
REFDAC
= 0.1µF, V
OPSAFE1
= V
OPSAFE2
= 0, V
RCS1+
= V
RCS2+
= +5V, C
FILT1
= C
FILT3
= 1nF, C
FILT2
=
C
FILT4
= 1nF, V
AGND
= V
DGND
= 0, V
ADCIN0
= V
ADCIN1
= 0, V
ACLAMP1
= V
ACLAMP2
= -5V, T
J
= T
MIN
to T
MAX
, unless otherwise noted.
All typical values are at T
J
= +25°C.)