AD9283

Features:

8-Bit, 50, 80 and 100 MSPS ADC
Low Power: 90 mW at 100 MSPS
On-Chip Reference and Track/Hold
475 MHz Analog Bandwidth
SNR = 46.5 dB @ 41 MHz at 100 MSPS
1 V p-p Analog Input Range
Single +3.0 V Supply Operation (2.7 V3.6 V)
Power-Down Mode: 4.2 mW




Application

Battery Powered Instruments
Hand-Held Scopemeters
Low Cost Digital Oscilloscopes




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 AD9283 is an 8-bit monolithic sampling analog-to-digital converter with an on-chip track-and-hold circuit and is optimized for low cost, low power, small size and ease of use. The product operates at a 100 MSPS conversion rate, with outstanding dynamic performance over its full operating range. 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 encoder input is TTL/CMOS compatible. A power-down function may be exercised to bring total consumption to 4.2 mW. In power-down mode, the digital outputs are driven to a high impedance state. Fabricated on an advanced CMOS process, the AD9283 is available in a 20-lead surface mount plastic package (SSOP) specified over the industrial temperature range (40°C to +85°C).