AT84AD001B

Features:

•Dual ADC with 8-bit Resolution
•1 Gsps Sampling Rate per Channel, 2 Gsps in Interlaced Mode
•Single or 1:2 Demultiplexed Output•LVDS Output Format (100Ω)
•500 mVpp Analog Input (Differential Only)
•Differential or Single-ended 50Ω PECL/LVDS Compatible Clock Inputs
•Power Supply: 3.3V (Analog), 3.3V (Digital), 2.25V (Output)
•LQFP144 Package
•Temperature Range:
0°C < T_A < 70°C (Commercial Grade)
-40°C < T_A < 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
Interlacing Functions:Offset and Gain (Channel to Channel) CalibrationDigital Fine SDA (Fine Sampling Delay Adjust) on One Channel
Internal Static or Dynamic Built-In Test (BIT)


Application

• Instrumentation
• Satellite Receivers
• Direct RF Down Conversion
• WLAN


Pinout




Description

The AT84AD001B 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 1 Gsps and an input frequency bandwidth of over 1.5 GHz. The dual concept, the inte-grated demultiplexer and the easy interleaving mode make this device AT84AD001B userfriendly 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 compo-nents, which are usually necessary for gain and offset tuning and setting of other para-meters, leading to space and power reduction as well as system flexibility.