AD9269-20EBZ

• Product Introduction

AD9269-20EBZ 16-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V, dual-channel analog-to-digital converter

The AD9269 is a single-chip, dual-channel, 16-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS analog-to-digital converter (ADC) that operates from a 1.8 V supply with built-in high-performance sample-hold circuitry and an on-chip reference source. It features a multi-stage differential pipeline architecture with built-in output error correction logic that provides 16-bit accuracy at 80 MSPS data rates and ensures no code loss over the entire operating temperature range.

The ADC has a variety of built-in features that allow for optimal device flexibility and minimal system cost, such as programmable clock and data alignment, generation of programmable digital test codes, and more. Available digital test codes include built-in fixed and pseudo-random codes, as well as user-defined test codes entered via the Serial Port Interface (SPI). An orthogonal error correction module corrects mismatches (offset voltage, gain, and phase) caused by analog demodulators in direct conversion receivers. A differential clock input is used to control all internal conversion cycles. An optional duty cycle stabilizer (DCS) is used to compensate for large clock duty cycle fluctuations while maintaining excellent overall ADC performance.

The digital output data format is offset binary, gray code, or binary complement. Each ADC channel has a data output clock (DCO) to ensure that the receive logic has the correct latching timing. The device supports both 1.8 V and 3.3 V CMOS levels, and the output data can be multiplexed on a single output bus.

The AD9269 is available in a 64-pin LFCSP package, is RoHS compliant, and is rated for an industrial temperature range of −40°C to +85°C.

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