AD9288

Features:

Dual 8-Bit, 40 MSPS, 80 MSPS, and 100 MSPS ADC
Low Power: 90 mW at 100 MSPS per Channel
On-Chip Reference and Track/Holds
475 MHz Analog Bandwidth Each Channel
SNR = 47 dB @ 41 MHz
1 V p-p Analog Input Range Each Channel
Single +3.0 V Supply Operation (2.7 V3.6 V)
Standby Mode for Single Channel Operation
Twos Complement or Offset Binary Output Mode
Output Data Alignment Mode




Application

Battery Powered Instruments
Hand-Held Scopemeters
Low Cost Digital Oscilloscopes
I and Q Communications




Pinout








Specifications



V_D, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+4 V
Analog Inputs . . . . . . . . . . . . . . . . . . . . 0.5 V to V_D + 0.5 V
Digital Inputs . . . . . . . . . . . . . . . . . . .0.5 V to V_DD + 0.5 V
VREF IN . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to V_D + 0.5 V
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Operating Temperature . . . . . . . . . . . . . . . 55°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . 65°C to +150°C
Maximum Junction Temperature . . . . . . . . . . . . . . . +175°C
Maximum Case Temperature . . . . . . . . . . . . . . . . . . +150°C




Description

The AD9288 is a dual 8-bit monolithic sampling analog-to- digital converter with on-chip track-and-hold circuits and is optimized for low cost, low power, small size and ease of use. The product operates at a 100 MSPS conversion rate with out- standing dynamic performance over its full operating range. Each channel can be operated independently.

The ADC requires only a single 3.0 V (2.7 V to 3.6 V) power supply and an encode clock for full-performance operation. No external reference or driver components are required for many applications. The digital outputs are TTL/CMOS compatible and a separate output power supply pin supports interfacing with 3.3 V or 2.5 V logic.The encode input is TTL/CMOS compatible and the 8-bit digital outputs can be operated from +3.0 V (2.5 V to 3.6 V) supplies. User-selectable options are available to offer a combination of standby modes, digital data formats and digital datatiming schemes. In standby mode, the digital outputs are driven to a high impedance state. Fabricated on an advanced CMOS process, the AD9288 is available in a 48-lead surface mount plastic package (7 * 7 mm, 1.4 mm LQFP) specified over the industrial temperature range (40°C to +85°C).