Datasheet

(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)
MAX1464 Low-Power, Low-Noise Multichannel
Sensor Signal Processor
www.maximintegrated.com
Maxim Integrated │ 6
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 kΩ
INTERNAL VOLTAGE REFERENCE
Internal Voltage Reference V
IR
(Note 8) 4.5 4.92 5.35 V
Temperature Coefcient TC
IR
±110 ppm/°C
TEMPERATURE SENSOR
Sensitivity Sens
TS
PGA[4:0] = 00001, CO[3:0] = 0110
+2 mV/°C
+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
DV
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 Coefcient T
A
= -40°C to +125°C 0.03 %FS
Ratiometricity PGA[4:0] = 00000 to 01000 0.02 %FS
Electrical Characteristics (continued)