AD7680 3 mW, 100 kSPS, 16-Bit ADC in 6 Lead SOT-23

First 16-bit ADC in a SOT-23 package. High throughput with low power consumption. Flexible power/serial clock speed management. The conversion rate is determined by the serial clock, allowing the conversion time to be reduced through the serial clock speed increase. This allows the average power consumption to be reduced when a power-down mode is used while not converting. The part also features a shutdown mode to maximize power efficiency at lower throughput rates. Power consumption is 0.5 μA max when in shutdown. Reference derived from the power supply. No pipeline delays.

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 and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipelined delays associated with the part.

The AD7860 uses advanced design techniques to achieve very low-power dissipation at fast throughput rates. The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus the analog input range for the part is 0 to VDD. The conversion rate is determined by the SCLK frequency.

Product Highlights

Applications
  • Process control
  • Battery-powered systems: Personal digital assistants Medical instruments Mobile communications
  • Instrumentation and control systems
  • Remote data acquisition systems
  • High speed modems
  • Optical sensors
Features and Benefits
  • 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
Analog to Digital Converters
Data Sheets
Documentnote
AD7680: 3 mW, 100 kSPS,16-Bit ADC in 6-Lead SOT-23 Data Sheet (Rev. A)PDF 263 kB
Application Notes
Documentnote
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)PDF 299 kB
AN-214: Ground Rules for High Speed CircuitsPDF 356 kB
AN-932: Power Supply Sequencing (Rev. 0)PDF 95 kB
Product Highlight
Documentnote
8- to 18-Bit SAR ADCs ... From the Leader in High Performance AnalogPDF 1885 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7680ARJZ-REEL7 Production6 ld SOT-23REEL 3000-40 to 85C06.21E
AD7680ARMZ Production8 ld MSOPOTH 50-40 to 85C6.976.21Y
AD7680BRJZ-REEL7 Production6 ld SOT-23REEL 3000-40 to 85C07.1E
AD7680BRMZ Production8 ld MSOPOTH 50-40 to 85C7.967.1Y
AD7680BRMZ-REEL7 Production8 ld MSOPREEL 1000-40 to 85C07.1Y
Reference Materials
AD7680: 3 mW, 100 kSPS,16-Bit ADC in 6-Lead SOT-23 Data Sheet (Rev. A) ad7680
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0) ad7476
AN-214: Ground Rules for High Speed Circuits ad1674
AN-932: 电源时序控制 (Rev. 0) ad7628
AN-931: 了解PulSAR ADC支持电路 (Rev. 0) ad7476
AN-932: Power Supply Sequencing (Rev. 0) ad7660
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog ad7893
MS-2210:高速ADC的电源设计 ad9861