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參數(shù)資料
| 型號(hào)： | MAX146BCAP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | +2.7Low-Power, 8-Channel, Serial 12-Bit ADCs |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁數(shù)： | 5/24頁 |
| 文件大小： | 198K |
| 代理商： | MAX146BCAP |
M
+2.7V, Low-Power, 8-Channel,
S erial 12-Bit ADCs
_______________________________________________________________________________________
5
Figure 1
MAX14_ _M
__________________________________________Typic al Operating Charac teristic s
(V
DD
= 3.0V, VREF = 2.500V, f
SCLK
= 2.0MHz, C
LOAD
= 20pF, T
A
= +25°C, unless otherwise noted.)
0.5
0
1024
2048
CODE
3072
4096
INTEGRAL NONLINEARITY
vs. CODE
0.3
-0.3
-0.5
-0.1
0.1
0.4
0.2
-0.4
-0.2
0
M
I
0.50
0
2.25
2.75
4.25
INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
V
DD
(V)
I
3.75
5.25
3.25
4.75
M
MAX146
MAX147
0
0.10
0.20
0.30
0.40
0.50
0.05
0.15
0.25
0.35
0.45
-60
-20
20
60
100
140
INTEGRAL NONLINEARITY
vs. TEMPERATURE
TEMPERATURE
(°C)
I
M
MAX147
MAX146
V
DD
= 2.7V
TIMING CHARACTERISTICS
(V
DD
= +2.7V to +3.6V (MAX146); V
DD
= +2.7V to +5.25V (MAX147); T
A
= T
MIN
to T
MAX
; unless otherwise noted.)
SYMBOL
PARAMETER
Note 1:
Tested at V
DD
= 2.7V; COM = 0V; unipolar single-ended input mode.
Note 2:
Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
been calibrated.
Note 3:
MAX146—internal reference, offset nulled; MAX147—external reference (VREF = +2.500V), offset nulled.
Note 4:
Ground “on” channel; sine wave applied to all “off” channels.
Note 5:
Conversion time defined as the number of clock cycles multiplied by the clock period; clock has 50% duty cycle.
Note 6:
The common-mode range for the analog inputs is from AGND to V
DD
.
Note 7:
External load should not change during conversion for specified accuracy.
Note 8:
ADC performance is limited by the converter’s noise floor, typically 300μVp-p.
Note 9:
Guaranteed by design. Not subject to production testing.
Note
10:
Measured as
|
V
FS
(2.7V) - V
FS
(V
DD, MAX
)
|
.
Internal clock mode only (Note 9)
External clock mode only, Figure 2
External clock mode only, Figure 1
DIN to SCLK Setup
DIN to SCLK Hold
Figure 1
Figure 2
Figure 1
MAX14_ _C/E
CONDITIONS
ns
20
240
240
Figure 1
ns
ns
t
CSH
t
CH
ns
ns
240
t
STR
t
SCK
CS
Rise to SSTRB Output Disable
SSTRB Rise to SCLK Rise
ns
240
t
SDV
CS
Fall to SSTRB Output Enable
240
t
SSTRB
SCLK Fall to SSTRB
200
t
CL
SCLK Pulse Width Low
ns
200
SCLK Pulse Width High
ns
0
CS
to SCLK Rise Hold
ns
100
t
CSS
CS
to SCLK Rise Setup
ns
240
t
TR
CS
Rise to Output Disable
ns
t
DV
CS
Fall to Output Enable
20
200
t
DO
SCLK Fall to Output Data Valid
ns
0
t
DH
μs
ns
1.5
100
t
ACQ
t
DS
Acquisition Time
0
UNITS
MIN
TYP
MAX
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX146BCAP+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX146BCAP+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX146BCAP-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX146BCPP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX146BCPP+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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