Overview
The ADS1605IPAPTG4, produced by Texas Instruments, is a high-speed, high-precision, 16-bit delta-sigma analog-to-digital converter (ADC). This device is designed to operate at a data rate of 5 mega-samples per second (MSPS), with the capability to double the data rate to 10 MSPS in 2X mode. It features a signal-to-noise ratio (SNR) of up to 88 dB, total harmonic distortion (THD) down to -99 dB, and a spurious-free dynamic range (SFDR) of up to 101 dB. The ADS1605 is well-suited for demanding measurement applications in scientific instruments, automated test equipment, data acquisition, medical imaging, and vibration analysis.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Data Rate | 5 MSPS (10 MSPS in 2X mode) |
| Signal-to-Noise Ratio (SNR) | Up to 88 dB |
| Total Harmonic Distortion (THD) | Down to -99 dB |
| Spurious-Free Dynamic Range (SFDR) | Up to 101 dB |
| Bandwidth (3dB) | 2.45 MHz |
| Passband Ripple | ±0.0025 dB (to 2.2 MHz) |
| Analog Supply (AVDD) | +5 V |
| Digital Supply (DVDD) | +3 V |
| Digital I/O Supply (IOVDD) | +2.7 to +5.25 V |
| Operating Temperature Range | -40°C to +85°C |
| Package | HTQFP-64 (PowerPAD technology) |
Key Features
- Linear phase with 2.45 MHz bandwidth
- Selectable on-chip reference or external reference
- Direct connection to TMS320C6000 DSPs
- Easily upgradable to 18 bits with the ADS1625 and ADS1626
- Adjustable power dissipation: 315 to 570 mW
- Power down mode activated by a digital I/O pin
- Out-of-range monitor for input range exceedance
Applications
- Scientific Instruments
- Automated Test Equipment
- Data Acquisition
- Medical Imaging
- Vibration Analysis
Q & A
- What is the resolution of the ADS1605?
The ADS1605 has a resolution of 16 bits. - What is the maximum data rate of the ADS1605?
The maximum data rate is 5 MSPS, which can be doubled to 10 MSPS in 2X mode. - What are the key performance metrics of the ADS1605?
The key performance metrics include an SNR of up to 88 dB, THD down to -99 dB, and SFDR up to 101 dB. - What is the bandwidth of the ADS1605?
The bandwidth (3dB) is 2.45 MHz. - Can the ADS1605 be powered down?
Yes, the ADS1605 has a power down mode activated by a digital I/O pin. - What are the supply voltages for the ADS1605?
The supply voltages are +5 V for the analog supply (AVDD), +3 V for the digital supply (DVDD), and +2.7 to +5.25 V for the digital I/O supply (IOVDD). - What package type is the ADS1605 available in?
The ADS1605 is available in a HTQFP-64 package using TI PowerPAD technology. - Can the ADS1605 be used with external references?
Yes, the ADS1605 allows for both on-chip and external voltage references. - What are some typical applications of the ADS1605?
Typical applications include scientific instruments, automated test equipment, data acquisition, medical imaging, and vibration analysis. - How does the ADS1605 connect to digital signal processors?
The ADS1605 connects to digital signal processors (DSPs) through a simple parallel interface.
