AD7356
Differential Input, Dual, Simultaneous Sampling, 5 MSPS, 12-Bit, SAR ADC
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Overview
Features and Benefits
- Dual 12-bit SAR ADC
- Simultaneous Sampling
- Throughput rate: 5 MSPS per channel
- Specified for VDD at 2.5 V
- No conversion latency
- Power dissipation: 36 mW at 5 MSPS
- On-chip reference: 2.048 V ± 0.25%, 6ppm/°C
- Dual conversion with read
- High speed serial interface: SPI-/QSPI™-/MICROWIRE™-/DSP-compatible
- −40°C to +125°C operation
- Available in a 16-lead TSSOP
Product Details
The AD7356 is a dual, 12-bit, high speed, low power, successive approximation ADC that operates from a single 2.5 V power supply and features throughput rates up to 5 MSPS. The part contains two ADCs, each preceded by a low noise, wide bandwidth track-and-hold circuit that can handle input frequencies in excess of 110 MHz.
The conversion process and data acquisition use standard control inputs allowing for easy interfacing to microprocessors or DSPs. The input signal is sampled on the falling edge of CS; a conversion is also initiated at this point. The conversion time is determined by the SCLK frequency.
The AD7356 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With a 2.5 V supply and a 5 MSPS throughput rate, the part consumes typically 14 mA. The part also offers a flexible power/throughput rate management option.
The analog input range for the part is the differential common mode ±VREF/2. The AD7356 has an on-chip 2.048 V reference that can be overdriven when an external reference is preferred.
The AD7356 is available in a 16-lead thin shrink small outline package (TSSOP).
PRODUCT HIGHLIGHTS
- Two Complete ADC Functions.
These functions allow simultaneous sampling and conversion of two channels. The conversion result of both channels is simultaneously available on separate data lines or in succession on one data line if only one serial port is available. - High Throughput with Low Power Consumption.
The AD7356 offers a 5 MSPS throughput rate with 36 mW power consumption. - No Conversion Latency.
The AD7356 features two standard successive approximation ADCs with accurate control of the sampling instant via a CS input and, once off, conversion control.
APPLICATIONS
- Data acquisition systems
- Motion control
- I and Q demodulation
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
Software & Systems Requirements
Evaluation Software
Product Recommendations
AD7356 Companion Parts
Recommended High Accuracy, Precision References - 2.5V
- For wide supply applications: AD780.
- For applications requiring the lowest noise performance and output trim adjust: ADR441.
- For cost sensitive applications: AD1582, ADR391, AD8605, AD8638.
- For high accuracy, low noise, low temperature drift: ADR431.
Recommended Driver Amplifiers
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Sample & Buy
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.