AD7278 3 MSPS, 8-Bit ADC in 8-Lead MSOP and 6-Lead TSOT

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 pipeline delays associated with the part. The AD7278 uses advanced design techniques to achieve very low power dissipation at high throughput rates. The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC; therefore, the analog input range for the part is 0 to VDD. The conversion rate is determined by the SCLK Product Highlights 3 MSPS ADCs in a 6-lead TSOT package AD7476/AD7477/AD7478 and AD7476A/AD7477A/ AD7478A pin-compatible High throughput with low power consumption Flexible power/serial clock speed management. This allows maximum power efficiency at low throughput rates Reference derived from the power supply No pipeline delay. The parts feature a standard successive approximation ADC with accurate control of the sampling instant via a CS input and once-off conversion control.

The AD7278 is an 8-bit, high speed, low power, successive-approximation ADC. The parts operate from a single 2.35 V to 3.6 V power supply and feature throughput rates of up to 3 MSPS. The parts contain a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 55 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 pipeline delays associated with the part.

The AD7278 uses advanced design techniques to achieve very low power dissipation at high throughput rates.

The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC; therefore, the analog input range for the part is 0 to VDD. The conversion rate is determined by the SCLK

Product Highlights
  • 3 MSPS ADCs in a 6-lead TSOT package
  • AD7476/AD7477/AD7478 and AD7476A/AD7477A/ AD7478A pin-compatible
  • High throughput with low power consumption
  • Flexible power/serial clock speed management. This allows maximum power efficiency at low throughput rates
  • Reference derived from the power supply
  • No pipeline delay. The parts feature a standard successive approximation ADC with accurate control of the sampling instant via a CS input and once-off conversion control.
Features and Benefits
  • Throughput rate: 3 MSPS
  • Specified for VDD of 2.35 V to
  • 3.6 V
  • Power consumption
  • 12.6 mW at 3 MSPS with 3 V supplies
  • Wide input bandwidth
  • 70 dB SNR at 1 MHz input frequency
  • Flexible power/serial clock speed management
  • No pipeline delays
  • Temperature range: −40°C to +125°C
  • Please see data sheet for additional features.
Analog to Digital Converters
Data Sheets
Documentnote
AD7276/AD7277/AD7278: 3 MSPS, 12-/10-/8-Bit ADCs in 6-Lead TSOT Data Sheet (Rev. D)PDF 596 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
AD7278ARMZ Last Time Buy8 ld MSOPOTH 50-40 to 125C2.42.01Y
AD7278ARMZ-RL Last Time Buy8 ld MSOPREEL 3000-40 to 125C02.01Y
AD7278AUJZ-500RL7 Production6 ld TSOTOTH 500-40 to 125C2.42.01Y
AD7278BRMZ Production8 ld MSOPOTH 50-40 to 125C2.732.28Y
AD7278BRMZ-REEL Last Time Buy8 ld MSOPREEL 3000-40 to 125C02.28Y
AD7278BUJZ-500RL7 Production6 ld TSOTOTH 500-40 to 125C2.732.28Y
AD7278BUJZ-REEL7 Production6 ld TSOTREEL 3000-40 to 125C02.28Y
Reference Materials
AD7276/AD7277/AD7278: 3 MSPS, 12-/10-/8-Bit ADCs in 6-Lead TSOT Data Sheet (Rev. D) ad7276
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