參數(shù)資料
型號(hào)： MAX1421
廠商： Maxim Integrated Products, Inc.
英文描述： 12-Bit, 40Msps, +3.3V, Low-Power ADC with Internal Reference
中文描述： 12位、40Msps、3.3V、低功耗ADC，內(nèi)置電壓基準(zhǔn)
文件頁數(shù)： 5/17頁
文件大?。?/td> 310K
代理商： MAX1421
M
12-Bit, 40Msps, +3.3V, Low-Power ADC
with Internal Reference
_______________________________________________________________________________________
5
Note 1:
Internal reference, REFIN bypassed to AGND with a combination of 0.22μF in parallel with 1nF capacitor.
Note 2:
External +2.048V reference applied to REFIN.
Note 3:
Internal reference disabled. V
REFIN
= 0, V
REFP
= +2.162V, V
CML
= +1.65V, and V
REFN
= +1.138V.
Note 4:
IMD is measured with respect to either of the fundamental tones.
Note 5:
Specifies the common-mode range of the differential input signal supplied to the MAX1421.
Note 6:
V
DIFF
= V
REFP
- V
REFN
Note 7:
Input bandwidth is measured at a 3dB level.
Note 8:
V
REFIN
is internally biased to +2.048V through a 10k
resistor.
Note 9:
Measured as the ratio of the change in mid-scale offset voltage for a ± 5% change in V
AVDD
using the internal reference.
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DVDD
= +3.3V, AGND = DGND = 0, V
IN
= ±1.024V, differential input voltage at -0.5dB FS, internal reference,
f
CLK
= 40MHz (50% duty cycle), digital output load C
L
≈
10pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Pipeline Delay (Latency)
Figure 5
7
f
CLK
cycles
Aperture Delay
Aperture Jitter
Data Output Delay
Bus Enable Time
Bus Disable Time
t
AD
t
AJ
t
OD
t
BE
t
BD
Figure 9
Figure 9
Figure 5
Figure 4
Figure 4
2
2
10
5
5
ns
ps
ns
ns
ns
5
14
Typical Operating Characteristics
(V
AVDD
= V
DVDD
= +3.3V, AGND = DGND = 0, V
IN
= ±1.024V, differential input voltage, f
CLK
= 40MHz (50% duty cycle), digital output
load C
L
= 10pF, T
A
= T
MIN
to T
MAX,
unless otherwise noted. Typical values are at T
A
= +25
°
C.)
-120
-80
-100
-40
-60
-20
0
0
10
5
15
20
FFT PLOT, 4096-POINT RECORD,
DIFFERENTIAL INPUT
M
ANALOG INPUT FREQUENCY (MHz)
A
f
IN
= 7.5439934MHz
A
IN
= -0.45dB FS
HD3
HD2
-120
-80
-100
-40
-60
-20
0
0
10
5
15
20
FFT PLOT, 4096-POINT RECORD,
DIFFERENTIAL INPUT
M
ANALOG INPUT FREQUENCY (MHz)
A
f
IN
= 19.9047628MHz
A
IN
= -0.50dB FS
HD2
HD3
-120
-80
-100
-40
-60
-20
0
0
10
5
15
20
FFT PLOT, 4096-POINT RECORD,
DIFFERENTIAL INPUT
M
ANALOG INPUT FREQUENCY (MHz)
A
f
IN
= 38.5440183MHz
A
IN
= -0.49dB FS
HD3
HD2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1421CCM 制造商:Maxim Integrated Products 功能描述:48 PINS TQFP PKG - Bulk
MAX1421CCM+D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 40Msps 3.3V 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
MAX1421CCM+TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 40Msps 3.3V 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
MAX1421CCM-D 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
MAX1421CCM-TD 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
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