計算工具
THS4561
- Bandwidth: 60 MHz (G = 1 V/V)
- Slew Rate: 230 V/µs
- Gain Bandwidth Product: 68 MHz
- Voltage Noise:
- 1/f Voltage Noise Corner: 8 Hz
- Broadband Noise (≥ 500 Hz): 4 nV/√ Hz
- Input Offset: ±250 µV (Maximum)
- Drift: ±4 µV/°C (Maximum)
- Supply Operating Range: 2.85 V to 12.6 V
- Supply Current: 775 µA
- Negative Rail Input (NRI)
- Rail-to-Rail Output (RRO)
- Very Low Harmonic Distortion:
- HD2: –117 dBc at 2 VPP, 100 kHz
- HD3: –124 dBc at 2 VPP, 100 kHz
- 0.01% Settling (2-V Step): 90 ns
The THS4561 fully differential amplifier (FDA) offers a simple interface from single-ended sources to the differential output required by precision analog-to-digital converters (ADCs). Designed for a very low,8-Hz, 1/f voltage noise corner and low, 130-dB total harmonic distortion (THD) while consuming only a775-µA quiescent current, the THS4561 is well suited for power-sensitive data acquisition (DAQ) systems where high performance is required with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination.
The THS4561 features the required negative rail input when interfacing a DC-coupled, ground-centered, source signal to a single-supply, differential-input ADC. Low DC error and drift terms support the emerging high-speed and high-resolution successive approximation register (SAR) and delta-sigma (ΔΣ) ADC input requirements. A 2.85-V to 12.6-V supply range with a flexible output common-mode setting with low headroom to the supplies supports a wide range of ADC input and digital-to-analog converter (DAC) output requirements.
The THS4561 device is characterized for operation from –40°C to +125°C.
技術文件
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檢視所有 8 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | THS4561 Low-Power, High Supply Range, 60-MHz, Fully Differential Amplifier datasheet (Rev. D) | PDF | HTML | 2021年 2月 1日 |
| Product overview | Pairing ADC Drivers With Fully-Differential Input ADCs for Wide Bandwidth Data Acquisition | 2024年 4月 1日 | ||
| Product overview | PLC Analog Input Front-End Architectures | PDF | HTML | 2022年 7月 31日 | |
| Circuit design | Differential input to differential output circuit using a fully-differential amp | 2019年 1月 7日 | ||
| Circuit design | Single-ended input to differential output circuit using a fully-differential amp | 2019年 1月 7日 | ||
| Application note | Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs | 2018年 6月 14日 | ||
| EVM User's guide | THS4561 EVM User's Guide | 2017年 8月 10日 | ||
| Application note | Noise Analysis for High Speed Op Amps (Rev. A) | 2005年 1月 17日 |
設計與開發
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開發板
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開發板
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模擬型號
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模擬工具
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模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
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參考設計
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參考設計
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
| WQFN (RUN) | 10 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點