MAXQ3120 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
제조사
MAXQ3120 Datasheet PDF : 33 Pages
| |||
High-Precision ADC
Mixed-Signal Microcontroller
ELECTRICAL CHARACTERISTICS (continued)
(DVDD, AVDD = VRST to 3.6V, VREF = 1.25V (external), fHFXIN = 8MHz, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Analog Supply Voltage
Active Analog Supply Current
AVDD
IAVDD
AVDD = DVDD
Normal operation
2.8
3.3
3.6
V
2.65 3.5
mA
Power-Down Analog Supply
Current
APD2:0 = 111b
250 635
µA
ANALOG-TO-DIGITAL CONVERTER DC ACCURACY
ADC Resolution
No missing codes, with software lowpass
filter (see Appendix A)
Offset Error
Gain = 1
Gain Error
Gain = 1
16
bits
±5.0
mV
±5.0
%
Gain-Error Drift
±10
ppm
Gain-Error Match
±0.5
%
DC Power-Supply Rejection
PSRR AN0+, AN0- = AGND; AVDD = 3.0V to 3.6V
80
dB
ANALOG-TO-DIGITAL CONVERTER DYNAMIC SPECIFICATIONS
DVDD = 3.3V, AVDD = 3.3V, AN0 = 25mV,
48
57
peak-to-peak sine wave at 65Hz, gain = 16
Signal-to-Noise Ratio
SNR
With software lowpass filter, cutoff at 21st
harmonic (see Appendix A)
71
dB
With software lowpass filter, cutoff at 7th
74
harmonic (see Appendix A)
Total Harmonic Distortion
THD
DVDD = 3.3V, AVDD = 3.3V, AN0 = 25mV,
peak-to-peak sine wave at 65Hz, gain = 16
(up to 21st harmonic)
-79
-55
dB
ANALOG-TO-DIGITAL CONVERTER INPUTS
Input-Voltage Range
AN0+, AN0-; AN1+, AN1- to AGND
Input Sampling Capacitance
(Note 3)
CIN
Channel 0
Gain = 1
Gain = 16
Input Sampling Rate
fS
(Note 4)
Sample Output Rate
Input Impedance to AGND
(Note 5)
Differential Input Impedance
(Note 6)
Input Bandwidth (-3dB)
Reference Input Voltage
Reference Input Sampling
Capacitance
Reference Input Sampling Rate
Gain = 1
Gain = 16
Gain = 1
Gain = 16
VREF
fS
-1
+1
V
1
pF
16
1.33
MHz
fHFXIN /
384
sample
/ sec
750
kΩ
46
1500
kΩ
93
5.5
kHz
1.2
1.25
1.3
V
2
pF
1.33
MHz
_____________________________________________________________________ 3
Share Link: 