Analog Devices Inc. Analog Devices ADA4610-2高精度アンプ
Analog DevicesのADA4610-2アンプはデュアル・チャネルの高精度JFETアンプで、高精度でしかも高速な機能を持ち合わせる独特な構成をしている、高電圧かつ低電力のオペアンプです。JFETの入力ステージの特性は低入力バイアス電流、広帯域、高ゲイン、低ノイズを提供し、入力電圧が最大コモンモード電圧範囲を超えても、出力位相反転は発生しません。強い駆動特性を持つレールtoレール出力と、シンク電流および供給電流共に低ドロップアウト電圧を供給します。ADA4610-2アンプは1nFを超える容量性負荷でも、どのゲイン構成にも無条件で安定しています。0.3Vまでの高電圧で電源を入れた時にどの端子を挿入しても損傷を与えることなく、内部保護回路が保護します。ADA4610-2のBグレードオフセット電圧は0.4mV未満、オフセット電圧ドリフト最大4μV/°Cという特徴を備え、通常では非常に高精度のバイポーラ入力タイプのアンプに見られます。ADA4610-2ファミリの低消費電力特性はダイ温度を最小限にし、高い室温でも低入力バイアス電流を保証し、強制的な冷却が必要の無い低漏れ仕様に最適です。供給電圧±5V～±15V、拡張工業温度範囲−40°C ～+125°CのADA4610-2アンプは、計測機器、医療機器、マルチポール・フィルタ、高精度電流計測、フォトダイオード・アンプ、オーディオ、各種センサーに適用します。
The JFET input stage architecture offers the advantages of low input bias current, high bandwidth, high gain, low noise, and no phase reversal when the applied input signal exceeds the common voltage range. The output stage is rail to rail with high drive characteristics and low dropout voltage for both sinking and sourcing currents. ADA4610-2 amplifiers are unconditionally stable for all gain configurations, even with capacitive loads well in excess of 1nF.
The devices are designed with internal protective circuitry that allows voltages as high as 0.3V beyond the supplies to be applied at the input of either terminal without causing damage. The ADA4610-2 B grades achieve less than 0.4mV of offset and 4μV/°C of offset drift, which are characteristics that are usually associated with very high precision bipolar input amplifiers.
The low power consumption characteristic of the ADA4610-2 family minimizes the die temperature, which warrants low input bias currents even at elevated ambient temperatures, making the amplifiers ideal for applications that require low leakage specifications without active cooling.
Fully specified with supply voltages from ±5V to ±15V over the extended industrial temperature range of −40°C to +125°C, ADA4610-2 Amplifiers are ideal for instrumentation, medical instruments, multipole filters, precision current measurement, photodiode amplifiers, audio, and sensors.
特徴
- Low offset voltage:
- B grade: 0.4mV maximum
- A grade: 1mV maximum
- Low offset voltage drift:
- B grade: 4μV/°C maximum
- A grade: 8μV/°C maximum
- Low input bias current of 5pA typical at VSY = ±15V
- Dual-supply operation of ±4.5V to ±15V
- Low noise:
- 7.3nV/√Hz typical at f = 1kHz
- 0.45μVp-p at 0.1Hz to 10Hz
- Low distortion of 0.00025%
- No phase reversal
- Rail-to-Rail Output
- Unity gain stable
アプリケーション
- Instrumentation
- Medical Instruments
- Multipole filters
- Precision current measurement
- Photodiode amplifiers
- Sensors
- Audio
Evaluation Boards
Analog Devices Inc. Analog Devices EVALPRAOPAMPx汎用精密オペアンプ用評価ボード
さまざまなパッケージに納められたシングルオペアンプの特徴と機能の評価に役立ちます。
Associated Products
Analog Devices Inc. ADA4610-1精密アンプ
低ノイズ、精密、レールツーレール出力、JFET入力シングルオペアンプ
Analog Devices Inc. ADA4610-4高精度クワッドアンプ
低ノイズ、精密、レールツーレール出力、JFET入力クワッドオペレーショナルアンプ
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