Analog Devices AD7626

Description

The AD7626 is a 16-bit, 10 MSPS, charge redistribution successive approximation register (SAR) based architecture analog-to-digital converter (ADC). SAR architecture allows unmatched performance both in noise (91.5 dB SNR) and in linearity (±0.45 LSB INL). The AD7626 contains a high speed, 16-bit sampling ADC, an internal conversion clock, and an internal buffered reference. On the CNV edge, it samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and REF. The 4.096 V reference voltage, REF, can be generated internally or applied externally.

All converted results are available on a single LVDS self-clocked or echoed-clock serial interface, reducing external hardware connections.

The AD7626 is housed in a 32-lead, 5 mm × 5 mm LFCSP with operation specified from −40°C to +85°C.

Features

• Throughput: 10 MSPS
• SNR: 91.5 dB
• 16-bit no missing codes
• INL: ±0.45 LSB
• DNL: ±0.35 LSB
• Power dissipation: 136mW
• 32-lead LFCSP (5 mm × 5 mm)
• SAR architecture
• No latency/no pipeline delay
• 16-bit resolution with no missing codes
• Zero error: ±1LSB
• Differential input range: ±4.096 V
• Serial LVDS interface
• Self-clocked mode
• Echoed-clock mode
• LVDS or CMOS option for conversion control (CNV signal)
• Reference options
• Internal: 4.096 V
• External (1.2 V) buffered to 4.096V
• External: 4.096 V

Typical applications

• CCD and IR cameras
• Spectrum analysis
• Test equipment
• Digital X-ray
• High dynamic range telecommunications receivers
• Digital imaging systems
• Digital MRI
• High speed data acquisition

More information

• Datasheet
• IC product information