ADS8505
16-Bit, 250-kSPS, 1-Ch SAR ADC with programmable (±10/±5/±3.3V) input ranges and parallel interface
ADS8505
- 105dB SFDR at 250-kHz Sample Rate
- Standard ±10-V Input Range
- ±1.5 LSB Max INL
- ±1 LSB Max DNL, 16-Bits No Missing Codes
- ±2 mV Max Bipolar Zero Error With ±0.4 PPM/°C Drift
- ±0.1% FSR Max Full-Scale Error With ±2 PPM/°C Drift
- Single 5-V Supply Operation
- Pin-Compatible With ADS7805 (Low Speed) and 12-Bit ADS8504/7804
- Uses Internal or External Reference
- Full Parallel Data Output
- 70-mW Typ Power Dissipation at 250 KSPS
- 28-Pin SSOP and SOIC Packages
- APPLICATIONS
- Industrial Process Control
- Data Acquisition Systems
- Digital Signal Processing
- Medical Equipment
- Instrumentation
The ADS8505 is a complete 16-bit sampling A/D converter using state-of-the-art CMOS structures. It contains a complete 16-bit, capacitor-based, SAR A/D with S/H, reference, clock, interface for microprocessor use, and 3-state output drivers.
The ADS8505 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide an industry standard ±10-V input range, while the innovative design allows operation from a single +5-V supply, with power dissipation under 100 mW.
The ADS8505 is available in 28-pin SOIC and 28-pin SSOP packages, both fully specified for operation over the industrial -40°C to 85°C temperature range.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | 16-Bit 250-KSPS Sampling CMOS Analog-to-Digital Converter datasheet (Rev. B) | 01 Feb 2007 | |
White paper | Voltage-reference impact on total harmonic distortion | 01 Aug 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 2 | 17 Mar 2011 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) | 10 Nov 2010 | ||
Application note | Upgrading from the ADS7804/05 to the ADS8504/05 | 30 Apr 2007 | ||
EVM User's guide | ADS78/8505EVM User's Guide | 15 Dec 2004 | ||
Application note | Controlling the ADS7805 With TMS320 Series DSPs | 09 Nov 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS8505EVM — ADS8505 evaluation module
The ADS8505EVM is designed for the prototyping and evaluation of the ADS8505 analog-to-digital converter (ADC). This 16-bit, capacitor-based, SAR/ADC operates at a maximum rate of 250 KSPS. The EVM allows the use of an optional buffer amplifier U8 to condition the input signals to the ADS8505 (...)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
JITTER-SNR-CALC — Jitter and SNR calculator
JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.
Supported products & hardware
Products
High-speed ADCs (≥10 MSPS)
Precision ADCs
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOIC (DW) | 28 | Ultra Librarian |
SSOP (DB) | 28 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
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.