4MSPS, 24-Bit Analog-to-Digital Converter
Product details
Parameters
Package | Pins | Size
Features
- AC Performance:
103dB of Dynamic Range at 4MSPS
111dB of Dynamic Range at 125kSPS
–107dB THD - DC Accuracy:
3ppm INL
4µV/°C Offset Drift
4ppm/°C Gain Drift - Programmable Digital Filter with User-Selectable Path:
- Low-Latency: Completely settles in 2.65µs
- Wide-Bandwidth: 1.7MHz BW with flat passband
- Flexible Read-Only Serial Interface:
- Standard CMOS
- Serialized LVDS
- Easy Conversion Control with START Pin
- Out-of-Range Detection
- Supply: Analog +5V, Digital +3V
- Power: 575mW
- APPLICATIONS
- Automated Test Equipment
- Medical Imaging
- Scientific Instrumentation
- Test and Measurement
All other trademarks are the property of their respective owners.
Description
The ADS1675 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma (
) architecture, it operates at speeds up to 4MSPS with outstanding ac performance and dc accuracy.
The ADS1675 ADC is comprised of a low-drift modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: Low-Latency or Wide-Bandwidth. The Low-Latency filter settles quickly (as fast as 2.65µs) for applications with large instantaneous changes, such as a multiplexer. The Wide-Bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than ±0.00002dB, stop band attenuation of 86dB, and a bandwidth of 1.7MHz.
The device offers two speed modes with distinct interface, resolution, and feature set. In the high-speed mode the device can be set to operate at either 4MSPS or 2MSPS. In the low-speed mode, it can be set to operate at either 1MSPS, 500KSPS, 250KSPS or 125KSPS.
The ADS1675 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1675 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).
The ADS1675 operates from an analog supply of 5V and digital supply of 3V, and dissipates 575mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | 4MSPS, 24-Bit Analog-to-Digital Converter datasheet (Rev. D) | Aug. 11, 2010 |
| E-book | Fundamentals of Precision ADC Noise Analysis | Jun. 19, 2020 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs | Jun. 27, 2017 | |
| White paper | Voltage-reference impact on total harmonic distortion | Aug. 01, 2016 | |
| E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | Mar. 19, 2015 | |
| User guide | ADS1675REF User's Guide (Rev. A) | Sep. 13, 2010 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
ADCPro™ is a modular software system for evaluating analog-to-digital converters (ADCs) without the need for expensive logic analyzers and complex analysis routines. Used alone it is suitable for performing analysis on data sets captured from ADC testing; when paired with a Texas Instruments (...)
Features
ADCPro software from Texas Instruments will simplify the tasks of collecting and analyzing ADC data, and ease evaluation. With it, you can easily set up an evaluation system that may not exactly replicate the manufacturer's system, but still arrive at meaningful results that can be compared to (...)
Description
The ADS1675 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma architecture, it operates up to 4MSPS with outstanding ac performance and dc accuracy. The ADS1675 Reference Design is a complete PC based solution for the evaluation of the ADS1675 using the (...)
Features
- Full-featured evaluation board for the ADS1675 24-bit Analog to Digital Converter
- Easy-to-use evaluation software for Microsoft™ Windows XP and Windows 7
- Built in analysis tools including scope, FFT and Histogram displays
- Onboard or off board oscillator options
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| TQFP (PAG) | 64 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.