Rainbow Electronics MAX1464 - Manual (Page 6)

MAX1464
Low-Power, Low-Noise Multichannel
Sensor Signal Processor
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Bit Weight BW PWM 2 µs/LSB
Offset Error V PWM _ OS PWM data = 0000h ±1 µs
Gain Error GE PWM (Note 7) ±0.025 %
Output Jitter OJ PWM 1/4 LSB
EXTERNAL REFERENCE INPUT
Reference Input Voltage Range V REF 2.25 2.5 2.75 V
Reference Input Resistance R REF V REF = 2.5V, ADC = ON, DACs = ON 100 k Ω
INTERNAL VOLTAGE REFERENCE
Internal Voltage Reference V
IR
(Note 8) 4.5 4.92 5.35 V
Temperature Coefficient TC
IR
±110 ppm/ °C
TEMPERATURE SENSOR
+2 mV/ °C
Sensitivity Sens TS PGA[4:0] = 00001, CO[3:0] = 0110
+95 LSB/ °C
Nonlinearity Error INL
TS
±0.5 %FS
Hysteresis Hist
TS
±0.1 %FS
ANALOG-TO-DIGITAL CONVERTER
Resolution RES ADC 16 Bits
Integral Nonlinearity INL ADC 2 Bits
Differential Nonlinearity DNL ADC
±1 LSB
ADC Offset Error V
ADC
_
OS
PGA[4:0] = 00000 (0.99),
CO[3:0] = 0000 (Note 9)
4 %FS
Channel-to-Channel Offset Error
Matching
∆V
ADC _ OS
±1 LSB
ADC Offset-Supply Rejection OSR ADC At DC, ADC ref = V REF = 5V 0.3 %FS
ADC Gain-Supply Rejection GSR ADC At DC, ADC ref = V REF = 5V 0.005 %FS
Offset Temperature Coefficient T A = -40°C to +125°C 0.03 %FS
Ratiometricity PGA[4:0] = 00000 to 01000 0.02 %FS
ELECTRICAL CHARACTERISTICS (continued)
(V DDF = V DD = 4.5V to 5.5V, V SSF = V SS = 0V, f CLK = 4.0MHz, T A = T MIN to T MAX . Typical values are at V DDF = V DD = 5.0V, V SSF = V SS = 0V,
T A = +25°C, unless otherwise noted.) (Note 1)