(Hong Kong)
Product Summary
The AD7821KRZ is a high speed, 8-bit, sampling, analog-to-digital converter that offers improved performance over the popular AD7820. The AD7821KRZ offers a conversion time of 660 ns and 100 kHz signal bandwidth. The sampling instant is better defined and occurs on the falling edge of WR or RD. The provision of a VSS pin (Pin 19) allows the AD7821KRZ to operate from ±5 V supplies and to digitize bipolar input signals. Alternatively, for unipolar inputs, the VSS pin can be grounded and the AD7821KRZ will operate from a single +5 V supply, like the AD7820.
Parametrics
AD7821KRZ absolute maximum ratings: (1)VDD to GND: -0.3 V to + 7 V; (2)VSS to GND: +0.3 V to + 7 V; (3)Digital Input Voltage to GND (Pins 6–8, 13): -0.3 V to VDD + 0.3 V; (4)Digital Output Voltage to GND (Pins 2–5, 9, 14–18): -0.3 V to VDD + 0.3 V; (5)VREF(+) to GND: VSS -0.3 V to VDD + 0.3 V; (6)VREF(–) to GND: VSS -0.3 V to VDD + 0.3 V; (7)VIN to GND: VSS -0.3 V to VDD + 0.3 V; (8)Operating Temperature Range: -40℃ to +85℃; (9)Storage Temperature Range: -65℃ to +150℃; (10)Lead Temperature (Soldering, 10 secs): +300℃; (11)Power Dissipation: 450 mW.
Features
AD7821KRZ features: (1)Fast Conversion Time: 660 ns max; (2)100 kHz Track-and-Hold Function; (3)1 MHz Sample Rate; (4)Unipolar and Bipolar Input Ranges; (5)Ratiometric Reference Inputs; (6)No External Clock; (7)Extended Temperature Range Operation; (8)Skinny 20-Pin DlPs, SOIC and 20-Terminal Surface Mount Packages.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 AD7821KRZ |
|
IC ADC 8BIT HS TRACK/HOLD 20SOIC |
Data Sheet |
|
|
||||||||||||||||
|
AD7821KRZ-REEL |
|
IC ADC 8BIT HS TRACK/HOLD 20SOIC |
Data Sheet |
|
|
||||||||||||||||
