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參數(shù)資料
| 型號： | INA149EVM |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL MODULE FOR INA149 |
| 標準包裝： | 1 |
| 每 IC 通道數(shù)： | 1 - 單 |
| 放大器類型： | 差分 |
| 轉換速率： | 5 V/µs |
| -3db帶寬： | 500kHz |
| 電流 - 輸出 / 通道： | 25mA |
| 工作溫度： | -40°C ~ 125°C |
| 電流供應（主 IC）： | 810µA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 36 V，±2 V ~ 18 V |
| 板類型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | INA149 |
| 其它名稱： | 296-30217 INA149EVM-ND |
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Frequency (Hz)
CommonMode
Rejection
Ratio
(dB)
INA149
Competitor A
SBOS579B – SEPTEMBER 2011 – REVISED JULY 2012
High Common-Mode Voltage Difference Amplifier
1
FEATURES
DESCRIPTION
The INA149 is a precision unity-gain difference
2
Common-Mode Voltage Range: ±275 V
amplifier with a very high input common-mode
Minimum CMRR: 90 dB from –40°C to +125°C
voltage range. It is a single, monolithic device that
DC Specifications:
consists of a precision op amp and an integrated thin-
film resistor network. The INA149 can accurately
–
Maximum Offset Voltage: 1100
μV
measure small differential voltages in the presence of
–
Maximum Offset Voltage Drift: 15
μV/°C
common-mode signals up to ±275 V. The INA149
–
Maximum Gain Error: 0.02%
inputs are protected from momentary common-mode
or differential overloads of up to 500 V.
–
Maximum Gain Error Drift: 10 ppm/°C
–
Maximum Gain Nonlinearity: 0.001% FSR
In many applications, where galvanic isolation in not
required, the INA149 can replace isolation amplifiers.
AC Performance:
This ability can eliminate costly isolated input side
–
Bandwidth: 500 kHz
power supplies and the associated ripple, noise, and
–
Typical Slew Rate: 5 V/
μs
quiescent current. The excellent 0.0005% nonlinearity
and 500-kHz bandwidth of the INA149 are superior to
Wide Supply Range: ±2.0 V to ±18 V
those of conventional isolation amplifiers.
–
Maximum Quiescent Current: 900
μA
The INA149 is pin-compatible with the INA117 and
–
Output Swing on ±15-V Supplies: ±13.5 V
INA148 type high common-mode voltage amplifiers
Input Protection:
and offers improved performance over both devices.
–
Common-Mode: ±500 V
The INA149 is available in the SOIC-8 package with
operation specified over the extended industrial
–
Differential: ±500 V
temperature range of –40°C to +125°C.
APPLICATIONS
High-Voltage Current Sensing
Battery Cell Voltage Monitoring
Power-Supply Current Monitoring
Motor Controls
Replacement for Isolation Circuits
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2011–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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