參數(shù)資料
型號： MAX125EVKIT
廠商： Maxim Integrated Products
文件頁數(shù)： 5/15頁
文件大?。?/td> 0K
描述： EVAL KIT FOR MAX125
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 1
ADC 的數(shù)量： 4
位數(shù)： 14
采樣率（每秒）： 250k
數(shù)據(jù)接口： 并聯(lián)
輸入范圍： ±5 V
在以下條件下的電源（標準）： 165mW @ 250kSPS
工作溫度： 0°C ~ 70°C
已用 IC / 零件： MAX125
已供物品： 板，CD
MAX125/MAX126
2x4-Channel, Simultaneous-Sampling
14-Bit DAS
______________________________________________________________________________________
13
Figure 10. Vector Motor Control
brought to the MAX125/MAX126 at CH4B. The addi-
tional channels can be used to evaluate slower analog
inputs, such as the main DC bus voltage (CH2B), tem-
perature sensors (CH3B), or other analog inputs (AUX,
CH1B).
Power-Supply Bypassing
and Ground Management
For optimum system performance, use printed circuit
boards with separate analog and digital ground
planes. Wire-wrapped boards are not recommended.
Connect the two ground planes together at the low-
impedance power-supply source. Connect DGND and
AGND together at the IC. For the best ground connec-
tion, connect the DGND and AGND pins together and
connect that point to the system analog ground plane
to avoid interference from other digital noise sources. If
DGND is connected to the system digital ground, digi-
tal noise may get through to the ADC’s analog portion.
The AGND pins must be connected directly to a low-
impedance ground plane. Extra impedance between
the pins and the ground plane increases crosstalk and
degrades INL.
Bypass AVDD and AVSS with 0.1F ceramic capacitors
to AGND. Mount them with short leads close to the
device. Ferrite beads may also be used to further iso-
late the analog and digital power supplies. Bypass
DVDD with a 0.1F ceramic capacitor to DGND.
MAIN DC
14 BIT ADC +
MICRO-
SEQUENCER
CH1
CH2
CH3
CH4
A
B
A
B
TEMP
A
B
A
B
AUX
MAIN DC
CURRENT/TORQUE
FEEDBACK
VOLTAGE/POSITION
FEEDBACK
VELOCITY
FEEDBACK
AC
MOTOR
SIMULTANEOUS
T/H
MAX125
MAX126
AC
MOTOR
R/E
RESOLVER/
ENCODER
C
DSP
14
BUFFER
POWER
STAGE
CONTROLLER
EXTERNAL
SETPOINTS
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MAX1261ACEI+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 250ksps 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
MAX1261ACEI+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 250ksps 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
MAX1261ACEI-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
MAX1261AEEI 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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