ADS1605 - 16 位 5MSPS Δ-Σ 模数转换器

ADS1605是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS1605是16 位 5MSPS Δ-Σ 模数转换器，本站介绍了ADS1605的封装应用图解、特点和优点、功能等，并给出了与ADS1605相关的TI元器件型号供参考。

ADS1605 - 16 位 5MSPS Δ-Σ 模数转换器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADS1605 and ADS1606 are high-speed, high-precision, delta-sigma analog-to-digital converter (ADCs) with 16-bit resolution. The data rate is 5 mega-samples per second (MSPS), the bandwidth (–3dB) is 2.45MHz, and passband ripple is less than ±0.0025dB (to 2.2MHz). Both devices offer outstanding performance at these speeds with a signal-to-noise ratio up to 88dB, total harmonic distortion down to –99dB, and a spurious-free dynamic range up to 101dB. For even higher-speed operation, the data rate an be doubled to 10MSPS in 2X mode. The ADS1606 includes an adjustable first-in first-out buffer (FIFO) for the output data.

The input signal is measured against a voltage reference that can be generated on-chip or supplied externally. The digital output data is provided over a simple parallel interface that easily connects to digital signal processors (DSPs). An out-of-range monitor reports when the input range has been exceeded. The ADS1605/6 operate from a +5V analog supply (AVDD) and +3V digital supply (DVDD). The digital I/O supply (IOVDD) operates from +2.7 to +5.25V, enabling the digital interface to support a range of logic families. The analog power dissipation is set by an external resistor and can be reduced when operating at slower speeds. A power down mode, activated by a digital I/O pin, shuts down all circuitry. The ADS1605/6 are offered in a TQFP-64 package using TI PowerPAD™ technology.

The ADS1605 and ADS1606, along with their 18-bit counterparts, the ADS1625 and ADS1626, are well suited for the demanding measurement requirements of scientific instrumentation, automated test equipment, data acquisition, and medical imaging.

产品特性

Data Rate: 5MSPS (10MSPS in 2X Mode)
Signal-to-Noise Ratio: 88dB
Total Harmonic Distortion: –99dB
Spurious-Free Dynamic Range: 101dB
Linear Phase with 2.45MHz Bandwidth
Passband Ripple: ±0.0025dB
Selectable On-Chip Reference
Directly Connects to TMS320C6000 DSPs
Easily Upgradeable to 18 Bits with the ADS1625 and ADS1626
Adjustable Power Dissipation: 315 to 570mW
Power Down Mode
Supplies:
- Analog +5V
- Digital +3V
- Digital I/O +2.7 to +5.25V
APPLICATIONS
- Scientific Instruments
- Automated Test Equipment
- Data Acquisition
- Medical Imaging
- Vibration Analysis

PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.

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