ADS1282-HT
- High Resolution: 124-dB SNR (1000 SPS)
- High Accuracy: THD: –102 dB
INL: 0.5 ppm - Low-Noise PGA
- Two-Channel Input MUX
- Inherently-Stable Modulator With Fast Responding
Over-Range Detection - Flexible Digital Filter:
- Sinc + FIR + IIR (Selectable)
- Linear or Minimum Phase Response
- Programmable High-Pass Filter
- Selectable FIR Data Rates: 250 SPS to 4
kSPS
- Filter Bypass Option
- Low-Power Consumption: 25 mW (210°C)
- Offset and Gain Calibration Engine
- SYNC Input
- Analog Supply: Unipolar (5 V) or Bipolar (±2.5 V)
- Digital Supply: 1.75 to 3.3 V
- Supports Extreme Temperature Applications(1)
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Extreme (–55°C to 210°C)
Temperature Range - Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
The ADS1282-HT device is an extremely high-performance, single-chip analog-to-digital converter (ADC) with an integrated, low-noise programmable gain amplifier (PGA) and two-channel input multiplexer (MUX). The ADS1282-HT device is suitable for the demanding needs of energy exploration and seismic monitoring environments.
The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The modulator is used either in conjunction with the on-chip digital filter, or can be bypassed for use with post processing filters.
The flexible input MUX provides an additional external input for measurement, as well as internal self-test connections. The PGA features outstanding low noise (5 nV/√Hz) and high input impedance, allowing easy interfacing to geophones and hydrophones over a wide range of gains.
The digital filter provides selectable data rates from 250 to 4000 samples per second (SPS). The high-pass filter (HPF) features an adjustable corner frequency. On-chip gain and offset scaling registers support system calibration.
The synchronization input (SYNC) can be used to synchronize the conversions of multiple ADS1282s. The SYNC input also accepts a clock input for continuous alignment of conversions from an external source.
Two operating modes allow optimization of noise and power. Together, the amplifier, modulator, and filter dissipate 30 mW. The ADS1282-SP is fully specified from –55°C to 210°C or from –55°C to 175°C for the PW package.
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 | ADS1282-HT High-Temperature High-Resolution Delta Sigma ADC datasheet (Rev. H) | PDF | HTML | 2016/2/24 | ||
| * | 輻射及可靠性報告 | ADS1282HPW Reliability Report (Rev. A) | 2012/8/17 | |||
| * | 輻射及可靠性報告 | ADS1282SJDJ Reliability Report | 2012/5/7 |
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)。
ADS1282-C-EXAMPLE-CODE — ADS1282 example C code
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。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 28 | Ultra Librarian |
| CDIP_SB (JDJ) | 28 | Ultra Librarian |
| DIESALE (KGD) | — | Ultra Librarian |