Rainbow Electronics MAX11008 - Manual (Page 4)

MAX11008
Dual RF LDMOS Bias Controller with
Nonvolatile Memory
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ELECTRICAL CHARACTERISTICS (continued)
(V CS_+ = +32V, AV DD = DV DD = +5V ±5%, external V REFADC = +2.5V, external V REFDAC = +2.5V, C REF = 0.1µF, C GATE_ = 0.1nF,
V SENSE = V CS_+ - V CS_- , T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MONITOR ADC CONVERSION RATE
Power-Up Time (External
Reference)
t PUEXT 1.1 µs
Power-Up Time (Internal
Reference)
t PUINT 70 µs
Acquisition Time t ACQ 0.5 µs
Conversion Time t CONV Internally clocked, T A = +25°C 10 µs
Aperture Delay t AD 20 ns
MONITOR ADC ANALOG INPUT (ADCIN1, ADCIN2)
Input Voltage Range V ADCIN Relative to AGND (Note 7) 0 V REFADC V
Input Leakage Current V IN = 0 and V IN = VAV DD ±0.01 µA
Input Capacitance C ADCIN 34 pF
TEMPERATURE MEASUREMENTS
T A = +25°C ±0.25 Internal Sensor Measurement
Error
T A = T MIN to T MAX (Note 8) ±1.5 ±3
°C
T A = +25°C ±1 External Sensor Measurement
Error (Note 9)
T A = T MIN to T MAX ±3
°C
Relative Temperature Accuracy T A = T MIN to T MAX (Note 9) ±0.4 °C
Temperature Resolution 1/8 °C/LSB
E xter nal D i od e D r i ve C ur r ent ( Low ) 3.25 4 µA
E xter nal D i od e D r i ve C ur r ent ( H i g h) 68 75 µA
INTERNAL REFERENCE
REFADC/REFDAC Output
Voltage V REFADC ,
V REFDAC
T A = +25°C 2.49 2.50 2.51 V
REFADC/REFDAC Temperature
Coefficient TC REFADC ,
TC REFDAC
±15 ppm/°C
REFADC/REFDAC Output
Impedance
6.5 k Ω
Capacitive Bypass at
REFADC/REFDAC
270 pF
Power-Supply Rejection Ratio PSRR AV DD = 5V ± 5% 64 dB
EXTERNAL REFERENCE
REFADC Input Voltage Range V REFADC 1.0 AV DD V
V
REFADC
= 2.5V, f
SAMPLE
= 100ksps 60 80
REFADC Input Current I REFADC
Acquisition/between conversions ±0.01
µA
REFDAC Input Voltage Range V REFDAC 0.7 2.5 V
REFDAC Input Current S tati c cur r ent w hen the D AC i s not cal i b r ated 0.1 µA