ADS8284
18 bit, 1 MSPS, 4 channel, Pseudo bipolar, differential ADC with onboard ADC driver OPA
ADS8284
- 1.0-MHz Sample Rate, Zero Latency at Full Speed
- 18-Bit Resolution
- Supports Pseudo-Bipolar Differential Input Range:
-4 V to +4 V with 2-V Common-Mode - Built-In Four Channel, Differential Ended Multiplexer;
with Channel Count Selection and Auto/Manual Mode - On-Board Differential ADC Driver (OPA)
- Buffered Reference Output to Level Shift Bipolar
±4-V Input with External Resistance Divider - Reference/2 Output to Set Common-Mode for External
Signal Conditioner - 18-/16-/8-Bit Parallel Interface
- SNR: 98.4dB Typ at 2-kHz I/P
- THD: –119dB Typ at 2-kHz I/P
- Power Dissipation: 331.25 mW at 1 MSPS Including
ADC Driver - Internal Reference
- Internal Reference Buffer
- 64-Pin QFN Package
The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable.
The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels.
The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface.
The ADS8284 is available in a 9 mm × 9 mm, 64-pin QFN package and is characterized from -40°C to 85°C.
For all available packages, see the orderable addendum at the end of the data sheet.Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | 18-Bit, 1-MSPS, Pseudo-Bipolar Differential SAR ADC with On-Chip ADC Driver (OP datasheet (Rev. A) | 23 Apr 2014 |
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