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1. DESCRIPTION
The AD9218BSTZ-40 is a dual, 10-bit, monolithic sampling analogto-digital converter (ADC) with on-chip track-and-hold circuits. The product is low cost, low power, and is small and easy to use. The AD9218-EP operates at a 105 MSPS conversion rate with 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 a clock for full operation. No external reference or driver components are required for many applications. The digital outputs are transistor-to-transistor logic (TTL)/ complementary metal-oxide semiconductor (CMOS) compatible, and a separate output power supply pin supports interfacing with 3.3 V or 2.5 V logic. The clock input is TTL/CMOS compatible and the 10-bit digital outputs can be operated from a 3.0 V (2.5 V to 3.6 V) supply. User-selectable options offer a combination of power-down modes, digital data formats, and digital data timing schemes. In power-down mode, the digital outputs are driven to a high impedance state. The AD9218-EP is fabricated on an advanced CMOS process and is available in a 48-lead, 7 mm × 7 mm, low profile quad flat package (LQFP), and is specified over the extended industrial temperature range of −55°C to +105°C. Additional application and technical information can be found in the AD9218 data sheet.
2. FEATURES
1. Dual, 10-bit, 105 MSPS ADC
2. Low power: 275 mW at 105 MSPS per channel
3. On-chip reference and track-and-hold
4. 300 MHz analog bandwidth for each channel
5. SNR = 54 dB at 51 MHz, encode = 105 MSPS
6. 1 V p-p analog input range for each channel
7. 3.0 V single-supply operation (2.7 V to 3.6 V)
8. Power-down mode for single-channel operation
9. Twos complement or offset binary output mode
10. Output data alignment mode
11. –75 dBc crosstalk between channels
3. APPLICATIONS
1. Radar
2. Avionics
3. Unmanned systems
4. Military communications
5. Missiles and munitions
4. PIN CONFIGURATION
5. FUNCTION DESCRIPTIONS
