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The AD7821 is a high speed, 8-bit, sampling, analog-to-digital converter that offers improved performance over the popular AD7820. It offers a conversion time of 660 ns (versus 1.36 µs for the AD7820) and 100 kHz signal bandwidth (versus 6.4 kHz). The sampling instant is better defined and occurs on the falling edge of WR or RD. The provision of a VSS pin (P.
Fast Conversion Time: 660 ns Max 100 kHz Track-and-Hold Function 1 MHz Sample Rate Unipolar and Bipolar Input Ranges Ratiometric Reference Inputs No External Clock Extended Temperature Range Operation Skinny 20-Lead DlPs, SOIC, and 20-Terminal Surface-Mount Packages LC2MOS High Speed, P Compatible 8-Bit ADC with Track/Hold Function AD7821 FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION The AD7821 is a high speed, 8-bit, sampling, analog-to-digital converter that offers improved performance over the popular AD7820. It offers a conversion time of 660 ns (versus 1.36 µs for the AD7820) and 100 kH.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | AD7820 |
Analog Devices |
8-BIT ADC |
|
| 2 | AD7822 |
Analog Devices |
3 V/5 V/ 2 MSPS/ 8-Bit/ 1-/ 4-/ 8-Channel Sampling ADCs |
|
| 3 | AD7823 |
Analog Devices |
8-Bit ADC |
|
| 4 | AD7824 |
Analog Devices |
High Speed 4- and 8-Channel 8-Bit ADCs |
|
| 5 | AD7825 |
Analog Devices |
3 V/5 V/ 2 MSPS/ 8-Bit/ 1-/ 4-/ 8-Channel Sampling ADCs |
|
| 6 | AD7827 |
Analog Devices |
3 V/5 V/ 1 MSPS/ 8-Bit/ Serial Interface Sampling ADC |
|
| 7 | AD7828 |
Analog Devices |
High Speed 4- and 8-Channel 8-Bit ADCs |
|
| 8 | AD7829 |
Analog Devices |
3 V/5 V/ 2 MSPS/ 8-Bit/ 1-/ 4-/ 8-Channel Sampling ADCs |
|
| 9 | AD7829-1 |
Analog Devices |
8-Channel ADC |
|
| 10 | AD780 |
Analog Devices |
High Precision Reference |
|
| 11 | AD7801 |
Analog Devices |
+2.7 V to +5.5 V/ Parallel Input/ Voltage Output 8-Bit DAC |
|
| 12 | AD7804 |
Analog Devices |
+3.3 V to +5 V Quad/Octal 10-Bit DACs |
|