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參數(shù)資料
| 型號： | MAX9934TART+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/19頁 |
| 文件大小： | 0K |
| 描述： | IC AMP CURR SENSE LV 6UCSP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 放大器類型： | 電流檢測 |
| 電路數(shù)： | 1 |
| -3db帶寬： | 1.5kHz |
| 電流 - 輸入偏壓： | 35µA |
| 電壓 - 輸入偏移： | 10µV |
| 電流 - 電源： | 120µA |
| 電壓 - 電源，單路/雙路(±)： | 2.5 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-WFBGA，CSPBGA |
| 供應商設備封裝： | 6-uCSP（1.57x1.16） |
| 包裝： | 帶卷 (TR) |
MAX9934
High-Precision, Low-Voltage, Current-Sense Amplifier
with Current Output and Chip Select for Multiplexing
10
Maxim Integrated
Detailed Description
The MAX9934 high-side, current-sense amplifier moni-
tors current through an external current-sense resistor
by amplifying the voltage across the resistor (VSENSE)
to create an output current (IOUT). An output voltage
(VOUT) then develops across the external output resis-
tor (ROUT). See the Typical Operating Circuit.
The MAX9934 uses precision amplifier design tech-
niques to achieve a low-input offset voltage of less than
10V. These techniques also enable extremely low-input
offset voltage drift over time and temperature and
achieve gain error of less than 0.25%. The precision VOS
specification allows accurate current measurements with
a low-value current-sense resistor, thus reducing power
dissipation in battery-powered systems, as well as load-
regulation issues in low-voltage DC power supplies.
The MAX9934 high-side current-sense amplifier fea-
tures a -0.1V to +5.5V input common-mode range that
is independent of supply voltage (VCC). This ability to
sense at voltages beyond the supply rail allows the
monitoring of currents out of a power supply even in a
shorted condition, while also enabling high-side current
sensing at voltages greater than the MAX9934 supply
Pin Description
PIN/BUMP
UCSP
MAX
NAME
FUNCTION
A1
1
VCC
Power Supply
A2
2
OUT
Current Output. OUT provides an output current proportional to input VSENSE. Connect an
external resistor (ROUT) from OUT to GND for unidirectional sensing or to an external reference
voltage for bidirectional sensing.
A3
3
GND
Ground
B1
8
RS+
Sense Resistor Power Side Connection
B2
7
RS-
Sense Resistor Load Side Connection
B3
6
CS
Chip-Select Input. Drive CS high to enable OUT, drive CS low to put OUT in a high-impedance
state.
—
4, 5
N.C.
No Connection. Not internally connected.
% FINAL VALUE
VOUT
±1V STEP
tS
2V
1V
tS
% FINAL VALUE
VSENSE
Figure 1. Output Settling Time
CS
OUT
GND
RS-
RS+
VCC
*RGAIN
Gm
MAX9934
Gm
*RGAIN = 40
FOR THE MAX9934T AND
RGAIN = 200
FOR THE MAX9934F.
Functional Diagram
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9934TAUA+ | 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX9934TAUA+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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX9934TEVKIT+ | 功能描述:放大器 IC 開發(fā)工具 MAX9934T Kit RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| MAX9935FAUA+ | 制造商:Maxim Integrated Products 功能描述:40UV 5V ISENSE-CHOPPER - Rail/Tube |
| MAX9935TAUA+ | 制造商:Maxim Integrated Products 功能描述:40UV 5V ISENSE-CHOPPER - Rail/Tube |
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