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隔離式放大器

ISO124

現行

±10-V 輸入、精密電壓感測低成本隔離放大器

立即訂購
產品規格表

ISO124

現行
產品規格表 立即訂購

產品詳細資料

Device type Voltage sensing Peak-to-peak input voltage range (V) 10 Working isolation voltage (VIOWM) (Vrms) 1500 Input offset (±) (max) (V) 0.05 Input offset drift (±) (typ) (µV/°C) 200 Rating Catalog Operating temperature range (°C) -25 to 85
Device type Voltage sensing Peak-to-peak input voltage range (V) 10 Working isolation voltage (VIOWM) (Vrms) 1500 Input offset (±) (max) (V) 0.05 Input offset drift (±) (typ) (µV/°C) 200 Rating Catalog Operating temperature range (°C) -25 to 85
PDIP (NVF) 8 188.047 mm² 20.005 x 9.4 SOIC (DVA) 8 184.907 mm² 17.9 x 10.33
  • 100% Tested for High-Voltage Breakdown
  • Rated 1500 Vrms
  • High IMR: 140 dB at 60 Hz
  • Maximum Nonlinearity: 0.010%
  • Bipolar Operation: VO = ±10 V
  • Packages: PDIP-16 and SOIC-28
  • Ease of Use: Fixed Unity Gain Configuration
  • Supply Range: ±4.5-V to ±18-V
  • 100% Tested for High-Voltage Breakdown
  • Rated 1500 Vrms
  • High IMR: 140 dB at 60 Hz
  • Maximum Nonlinearity: 0.010%
  • Bipolar Operation: VO = ±10 V
  • Packages: PDIP-16 and SOIC-28
  • Ease of Use: Fixed Unity Gain Configuration
  • Supply Range: ±4.5-V to ±18-V

The ISO124 is a precision isolation amplifier incorporating a novel duty cycle modulation-demodulation technique. The signal is transmitted digitally across a 2-pF differential capacitive barrier. With digital modulation, the barrier characteristics do not affect signal integrity, thus resulting in excellent reliability and good high-frequency transient immunity across the barrier. Both barrier capacitors are imbedded in the plastic body of the package.

The ISO124 is easy to use. No external components are required for operation. The key specifications are 0.010% maximum nonlinearity, 50-kHz signal bandwidth, and 200-µV/°C VOS drift. A power supply range of ±4.5 V to ±18 V, and quiescent currents of ±5 mA on VS1 and ±5.5 mA on VS2 make the ISO124 device a good choice for a wide range of applications.

The ISO124 is available in 16-pin PDIP and 28-lead SOIC plastic surface-mount packages.

 

The ISO124 is a precision isolation amplifier incorporating a novel duty cycle modulation-demodulation technique. The signal is transmitted digitally across a 2-pF differential capacitive barrier. With digital modulation, the barrier characteristics do not affect signal integrity, thus resulting in excellent reliability and good high-frequency transient immunity across the barrier. Both barrier capacitors are imbedded in the plastic body of the package.

The ISO124 is easy to use. No external components are required for operation. The key specifications are 0.010% maximum nonlinearity, 50-kHz signal bandwidth, and 200-µV/°C VOS drift. A power supply range of ±4.5 V to ±18 V, and quiescent currents of ±5 mA on VS1 and ±5.5 mA on VS2 make the ISO124 device a good choice for a wide range of applications.

The ISO124 is available in 16-pin PDIP and 28-lead SOIC plastic surface-mount packages.

 
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類型 標題 日期
* Data sheet ISO124 ±10-V Input, Precision Isolation Amplifier datasheet (Rev. E) PDF | HTML 2018年 6月 11日
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 2023年 5月 4日
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 2019年 2月 28日
Application note Noise Sources In Applications Using Capacitive Coupled Isolated Amplifier 2000年 9月 27日
Application note Simple Output Filter Eliminates ISO Amp Output Ripple And Keeps Full Bandwidth 2000年 9月 27日

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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參考設計

TIDA-010065 — 基於高效、低排放、隔離式 DC/DC 轉換器的類比輸入模組參考設計

此參考設計為一簡化架構，可產生隔離式電源供應，適用於測量隔離電壓與電流的隔離式放大器。具 5-V 輸入之強化隔離操作的完全整合式 DC/DC 轉換器，並具備可設定 5-V 或 5.4-V 輸出 (適用於低壓降穩壓器 (LDO) 的空餘空間) 可產生隔離電源。連接到 ±50-mV 輸入範圍隔離放大器，且配置爲通道隔離輸入的分流，可測量電流。連接到 ±250-mV 或 ±12-V 輸入範圍隔離放大器，且配置爲群組隔離輸入的潛在分頻器，可測量電壓。隔離放大器介面直接輸出至 24 位 Δ Σ 類比轉數位轉換器 (ADC)，或使用增益放大器擴展至 (...)
Design guide: PDF
電路圖: PDF
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PDIP (NVF) 8 Ultra Librarian
SOIC (DVA) 8 Ultra Librarian
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