Описание
The AT84AD004B is a monolithic dual 8-bit analog-to-digital converter, offering low 1.4W power consumption and excellent digitizing accuracy. It integrates dual on-chip track/holds that provide an enhanced dynamic performance with a sampling rate of up to 500 Msps and an input frequency bandwidth of 1 GHz. The dual concept, the integrated demultiplexer and the easy interleaving mode make this device user-friendly for all dual channel applications, such as direct RF conversion or data acquisition. The smart function of the 3-wire serial interface eliminates the need for external components, which are usually necessary for gain and offset tuning and setting of other parameters, leading to space and power reduction as well as system flexibility.
- Dual ADC with 8-bit Resolution
- 500 Msps Sampling Rate per Channel, 1 Gsps in interleaved Mode
- Single or 1:2 Demultiplexed Output
- LVDS Output Format (100?)
- 500 mVpp Analog Input (Differential Only)
- Differential or Single-ended 50? PECL/LVDS Compatible Clock Inputs
- Power Supply: 3.3V (Analog), 3.3V (Digital), 2.25V (Output)
- LQFP144 or LQFP-ep 144L Green packages
- Temperature Range:
- 0°C < Tamb < 70° C (Commercial Grade)
- –40°C < Tamb < 85° C (Industrial Grade)
- 3-wire Serial Interface
- 16-bit Data, 3-bit Address
- 1:2 or 1:1 Output Demultiplexer Ratio Selection
- Full or Partial Standby Mode
- Analog Gain (±1.5 dB) Digital Control
- Input Clock Selection
- Analog Input Switch Selection
- Binary or Gray Logical Outputs
- Synchronous Data Ready Reset
- Data Ready Delay Adjustable on Both Channels
- interleaving Functions:
- Offset and Gain (Channel to Channel) Calibration
- Digital Fine SDA (Fine Sampling Delay Adjust) on One Channel
- Internal Static or Dynamic Built-In Test (BIT)
