INA1620
- High-Quality Thin-Film Resistors
Matched to 0.004% (Typical) - Integrated EMI Filters
- Ultra-low Noise: 2.8 nV/√Hz at 1 kHz
- Ultra-low Total Harmonic Distortion + Noise:
–119 dB THD+N (142 mW/Ch Into 32 Ω/Ch) - Wide Gain Bandwidth Product:
32 MHz (G = +1000) - High Slew Rate: 10 V/µs
- High Capacitive-Load Drive Capability: > 600 pF
- High Open-Loop Gain: 136 dB (600-Ω Load)
- Low Quiescent Current: 2.6 mA per Channel
- Low-Power Shutdown Mode With Reduced Pop-and-Click Noise: 5 µA per Channel
- Short-Circuit Protection
- Wide Supply Range: ±2 V to ±18 V
- Available in Small 24-pin WQFN Package
The INA1620 integrates 4 precision-matched thin-film resistor pairs and EMI filtering
on-chip with a low-distortion, high output current, dual audio operational amplifier. The amplifier
achieves a very low,
2.8-nV/√Hz noise density with an ultra-low THD+N of –119.2 dB at 1 kHz
and drives a 32-Ω load at 150-mW output power. The integrated thin-film resistors are matched to
within 0.004% and can be used to create a large number of very high-performance audio circuits.
The INA1620 operates over a very wide supply range of ±2 V to ±18 V on only 2.6 mA of supply current per channel. The INA1620 also has a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. Shutdown mode is specifically designed to eliminate click-and-pop noise when transitioning into or out of shutdown mode.
The INA1620 has a unique internal layout for lowest crosstalk, and freedom from interactions between channels, even when overdriven or overloaded. This device is specified from –40°C to +125°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | INA1620 High-Fidelity Audio Operational Amplifier With Integrated Thin-Film Resistors and EMI Filters datasheet (Rev. B) | PDF | HTML | 2018/7/11 | ||
| 應用說明 | How to Measure Total Harmonic Distortion of an Op-Amp and THD + N Fundamentals | PDF | HTML | 2023/11/9 | |||
| 應用說明 | Analysis of Improved Howland Current Pump Configurations (Rev. A) | PDF | HTML | 2023/2/9 | |||
| 應用說明 | Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps | PDF | HTML | 2021/7/27 | |||
| 應用說明 | Parallel Amplifiers for Higher Output Power: An Improved Howland Pump Approach | PDF | HTML | 2021/7/11 | |||
| Application brief | Understanding Op Amp Noise in Audio Circuits | PDF | HTML | 2021/6/14 | |||
| Application brief | Parallel INA1620 Headphone Amplifiers for Higher Output Power | 2019/4/25 | ||||
| Application brief | On-Chip Thin Film Resistors Enable High-Performance Audio Circuitry | 2018/6/19 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
INA1620EVM — INA1620 音訊運算放大器評估模組
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。
OPAMP-NOISECALC — Noise Calculator
This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
- A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |