計算工具
PGA849-CALC — PGA849 Input and Output Range Calculator
Excel based calculator tool to provide user friendly, visual interface to support customer calculate inout and out range of the PGA849 based on user inputs of Supply voltage.
PGA849
- Differential to single-ended conversion
- Eight pin-programmable binary gains
- G (V/V) = ⅛, ¼, ½, 1, 2, 4, 8, and 16
- Low gain error drift: 2ppm/°C (max)
- Faster signal processing:
- Wide bandwidth: 10MHz at all gains
- High slew rate: 35V/µs
- Settling time: 500ns to 0.01%, 950ns to 0.0015%
- Input stage noise: 7.8nV/√Hz at G = 16V/V
- Filter option to achieve better SNR
- Input overvoltage protection to ±40V beyond supplies
- Input-stage supply range:
- Single supply: 8V to 36V
- Dual supply: ±4V to ±18V
- Independent output power-supply pins
- Output-stage supply range:
- Single supply: 4.5V to 36V
- Dual supply: ±2.25V to ±18V
- Specified temperature range: –40°C to +125°C
- Small package: 3mm × 3mm QFN
The PGA849 is a wide-bandwidth, low-noise programmable gain instrumentation amplifier for differential-to-single-ended conversion. The PGA849 is equipped with eight binary gain settings, from an attenuating gain of 0.125V/V to a maximum of 16V/V, using three digital gain selection pins.
The PGA849 architecture is optimized to drive inputs of high-resolution, precision analog-to-digital converters (ADCs) with sampling rates up to 1MSPS without the need for an additional ADC driver. The output-stage power supplies are decoupled from the input stage to protect the ADC or downstream device against overdrive damage.
The super-beta input transistors offer an impressively low input bias current, which in turn provides a very low input current noise density of 0.3pA/√Hz, making the PGA849 a versatile choice for virtually any sensor type. The low-noise current-feedback front-end architecture offers exceptional gain flatness even at high frequencies, making the PGA849 an excellent high-impedance sensor readout device. Integrated protection circuitry on the input pins handles overvoltages of up to ±40V beyond the power-supply voltages.
技術文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 4 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | PGA849 Low-Noise, Wide-Bandwidth, Precision Programmable Gain Instrumentation Amplifier datasheet | PDF | HTML | 2024年 3月 29日 |
| Product overview | PGA855 and PGA849 Product Overview (Rev. A) | PDF | HTML | 2024年 7月 11日 | |
| Application note | Achieve High SNR with the PGA855, Fully Differential Programmable-Gain Amplifier | PDF | HTML | 2024年 3月 21日 | |
| EVM User's guide | PGA849 Evaluation Module User's Guide | PDF | HTML | 2024年 3月 20日 |
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)。
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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 (...)
模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
參考設計
TIDA-010945 — 適用於數位萬用表的精密訊號鏈參考設計
此參考設計說明用於 DC 量測之高性能訊號鏈的理論、設計與測試。主要目標應用是數位萬用表 (DMM)，但此設計也適用於其他應用，例如資料擷取 (DAQ) 和狀況監控。此設計使用高性能 24 位元類比轉數位轉換器 ADS127L21，以及低雜訊可編程增益放大器 PGA855，並具備 ±2.4ppm 的典型非線性與低溫度致漂移，進而實現高 DC 準確度。這些裝置皆高度整合，可簡化整體訊號鏈設計。
Design guide: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGT) | 16 | 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