
AD7607 Series
8-Channel DAS with 14-Bit, Bipolar, Simultaneous Sampling ADC
Manufacturer: Analog Devices
Catalog
8-Channel DAS with 14-Bit, Bipolar, Simultaneous Sampling ADC
Key Features
• 8 simultaneously sampled inputs
• True bipolar analog input ranges: ±10 V, ±5 V
• Single 5 V analog supply and 2.3 V to 5.25 V VDRIVE
• Fully integrated data acquisition solutionAnalog input clamp protectionInput buffer with 1 MΩ analog input impedanceSecond-order antialiasing analog filterOn-chip accurate reference and reference buffer14-bit ADC with 200 kSPS on all channels
• Analog input clamp protection
• Input buffer with 1 MΩ analog input impedance
• Second-order antialiasing analog filter
• On-chip accurate reference and reference buffer
• 14-bit ADC with 200 kSPS on all channels
• Flexible parallel/serial interfaceSPI/QSPI™/MICROWIRE™/DSP compatible
• SPI/QSPI™/MICROWIRE™/DSP compatible
• Pin-compatible solutions from 14 bits to 18 bits
• Performance7 kV ESD rating on analog input channelsFast throughput rate: 200 kSPS for all channels85.5 dB SNR at 50 kSPSINL ±0.25 LSB, DNL ±0.25 LSBLow power: 100 mW at 200 kSPSStandby mode: 25 mW typical
• 7 kV ESD rating on analog input channels
• Fast throughput rate: 200 kSPS for all channels
• 85.5 dB SNR at 50 kSPS
• INL ±0.25 LSB, DNL ±0.25 LSB
• Low power: 100 mW at 200 kSPS
• Standby mode: 25 mW typical
• 64-lead LQFP package
Description
AI
The AD7607 is a 14-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS). The part contains analog input clamp protection; a second-order antialiasing filter; a track-and-hold amplifier; a 14-bit charge redistribution, successive approximation analog-to-digital converter (ADC); a flexible digital filter; a 2.5 V reference and reference buffer; and high speed serial and parallel interfaces.The AD7607 operates from a single 5 V supply and can accommodate ±10 V and ±5 V true bipolar input signals while sampling at throughput rates of up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages of up to ±16.5 V. The AD7607 has 1 MΩ analog input impedance, regardless of sampling frequency. The single supply operation, on-chip filtering, and high input impedance eliminate the need for driver op amps and external bipolar supplies. The AD7607 antialiasing filter has a 3 dB cutoff frequency of 22 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven and can be used to simplify external filtering.ApplicationsPower-line monitoring and protection systemsMultiphase motor controlInstrumentation and control systemsMultiaxis positioning systemsData acquisition systems (DAS)