參數(shù)資料
型號(hào): MAXQ3120-FFN+
廠(chǎng)商: Maxim Integrated Products
文件頁(yè)數(shù): 23/33頁(yè)
文件大?。?/td> 0K
描述: IC MCU 32KB FLASH 80-MQFP
標(biāo)準(zhǔn)包裝: 66
系列: MAXQ®
核心處理器: RISC
芯體尺寸: 16-位
速度: 8MHz
連通性: UART/USART
外圍設(shè)備: LCD,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 32KB(16K x 16)
程序存儲(chǔ)器類(lèi)型: 閃存
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 2.8 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 2x16b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-BQFP
包裝: 托盤(pán)
MAXQ3120
High-Precision ADC
Mixed-Signal Microcontroller
_____________________________________________________________________
3
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
AVDD
AVDD = DVDD
2.8
3.3
3.6
V
Active Analog Supply Current
IAVDD
Normal operation
2.65
3.5
mA
Power-Down Analog Supply
Current
APD2:0 = 111b
250
635
A
ANALOG-TO-DIGITAL CONVERTER DC ACCURACY
ADC Resolution
No missing codes, with software lowpass
filter (see Appendix A)
16
bits
Offset Error
Gain = 1
±5.0
mV
Gain Error
Gain = 1
±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,
peak-to-peak sine wave at 65Hz, gain = 16
48
57
With software lowpass filter, cutoff at 21st
harmonic (see Appendix A)
71
Signal-to-Noise Ratio
SNR
With software lowpass filter, cutoff at 7th
harmonic (see Appendix A)
74
dB
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
-1
+1
V
Gain = 1
1
Input Sampling Capacitance
(Note 3)
CIN
Channel 0
Gain = 16
16
pF
Input Sampling Rate
fS
(Note 4)
1.33
MHz
Sample Output Rate
fHFXIN /
384
sample
/ sec
Gain = 1
750
Input Impedance to AGND
(Note 5)
Gain = 16
46
k
Gain = 1
1500
Differential Input Impedance
(Note 6)
Gain = 16
93
k
Input Bandwidth (-3dB)
5.5
kHz
Reference Input Voltage
VREF
1.2
1.25
1.3
V
Reference Input Sampling
Capacitance
2pF
Reference Input Sampling Rate
fS
1.33
MHz
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