參數(shù)資料
型號: MAX9934EVKIT+
廠商: Maxim Integrated Products
文件頁數(shù): 6/19頁
文件大小: 0K
描述: KIT EVAL FOR MAX9934
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
每 IC 通道數(shù): 1 - 單
放大器類型: 電流檢測
輸出類型: 單端
工作溫度: -40°C ~ 125°C
電流供應(yīng)(主 IC): 120µA
電壓 - 電源,單路/雙路(±): 2.5 V ~ 3.6 V
板類型: 完全填充
已供物品:
已用 IC / 零件: MAX9934
MAX9934
High-Precision, Low-Voltage, Current-Sense Amplifier
with Current Output and Chip Select for Multiplexing
14
Maxim Integrated
A MAX9934 can be deselected by either forcing VCS
low as shown in Figures 4 and 5, or by making VCC =
0V as shown in Figure 6. In all these conditions, the
MAX9934 maintains a high-impedance output with
0.1nA (typ) leakage current. In this state, OUT can rise
above VCC if necessary. Thus, different supply voltages
can be used to power different MAX9934 devices that
are multiplexed on the same OUT bus. Multiplexing by
forcing the MAX9934 to be powered down (VCC = 0V)
reduces its supply current to zero to help extend bat-
tery life in portable applications.
Choosing RSENSE and ROUT
In the current-sense application, the monitored load
current (ILOAD) develops a sense voltage (VSENSE)
across a current-sense resistor (RSENSE). The
MAX9934 sources or sinks an output current that is pro-
portional to VSENSE. Finally, the MAX9934 output cur-
rent is provided to an output resistor (ROUT) to develop
an output voltage across ROUT that is proportional to
the sensed load current.
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
ROUT
10k
(OPTIONAL)
ADC
CS2
CS1
MICROCONTROLLER
CS
CS3
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
CS
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
CS
1/4 MAX4737
VIN1
VIN2
VIN3
ILOAD1
OUT3
OUT2
OUT1
0.1
F
0.1
F
0.1
F
ILOAD3
ILOAD2
Figure 6. Multiplexed Amplifiers with Power Saving
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MAX9934EVKIT+ 功能描述:放大器 IC 開發(fā)工具 MAX9934 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
MAX9934FALT+T 功能描述:電流靈敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比(最小值):110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX9934FART+T 功能描述:電流靈敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比(最小值):110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX9934FART+TG0Y 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比(最小值): 輸入補償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
MAX9934FAUA+ 功能描述:電流靈敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比(最小值):110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel