AD7680BRMZ-REEL7

The AD7680 is a 16-bit, fast, low power, successive approximation ADC. The part operates from a single 2.5 V to 5.5 V power supply and features throughput rates up to 100 kSPS. The part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 7 MHz. The conversion process and data acquisition are controlled using CS（overline） and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS（overline） and the conversion is also initiated at this point. There are no pipeline delays associated with the part. The AD7680 uses advanced design techniques to achieve very low power dissipation at fast throughput rates. The reference for the part is taken internally from VDD, which allows the widest dynamic input range to the ADC. Thus, the analog input range for this part is 0 V to VDD. The conversion rate is determined by the SCLK frequency.

Applications

• Battery-powered systems: Personal digital assistants, Medical instruments, Mobile communications
• Instrumentation and control systems
• Remote data acquisition systems
• High speed modems
• Optical sensors

Key features

• Fast throughput rate: 100 kSPS
• Specified for VDD of 2.5 V to 5.5 V
• Low power 3 mW typ at 100 kSPS with 2.5 V supply; 3.9 mW typ at 100 kSPS with 3 V supply; 16.7 mW typ at 100 kSPS with 5 V supply
• Wide input bandwidth 86 dB SNR at 10 kHz input frequency
• Flexible power/serial clock speed management
• No pipeline delays
• High speed serial interface SPI/QSPI/μWire/DSP compatible
• Standby mode: 0.5 μA max
• 6-Lead SOT-23 and 8-Lead MSOP packages