Overview
Features and Benefits
- 16-bit, 14-bit, or 12-bit dual simultaneous sampling SAR ADC
- Single-ended analog inputs
- 4-channel with 2:1 multiplexers
- Channel sequencer mode
- High throughput rate of up to 4 MSPS
- SNR (typical)
- 87.5 dB (AD7386), VREF = 3.3 V external
- 84 dB (AD7387), VREF = 3.3 V external
- 73.8 dB (AD7388)
- 93 dB with OSR = 8, VREF = 2.5 V internal (AD7386)
- On-chip oversampling functions
- INL (typical)
- ±1.5 LSB (AD7386)
- ±0.5 LSB (AD7387)
- ±0.2 LSB (AD7388)
- Resolution boost function
- 2.5 V internal reference at 10 ppm/°C (maximum)
- Alert function
- −40°C to +125°C temperature range
- 16-lead, 3 mm × 3 mm LFCSP
Product Details
The AD7386/AD7387/AD7388 are 16-bit, 14-bit, and 12-bit dual, simultaneous sampling, high speed, successive approximation register (SAR), analog-to-digital converters (ADCs) that operate from a 3.0 V to 3.6 V power supply and feature throughput rates of up to 4 MSPS. The analog input types are single-ended and are sampled and converted on the falling edge of CS.
The AD7386/AD7387/AD7388 have an on-chip sequencer and integrated on-chip oversampling block to improve dynamic range and reduce noise at lower bandwidths. Abuffered internal 2.5 V reference is included. Alternatively, an external reference up to 3.3 V can be used. The conversion process and data acquisition use standard control inputs, allowing interfacing to microprocessors or digital signal processors (DSPs). The AD7386 is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces by using the separate logic supply.
The AD7386/AD7387/AD7388 are available in a 16-lead LFCSP with operation specified from −40°C to +125°C.
Product Highlights
- 4-channel, dual simultaneous sampling ADC.
- Pin-compatible product family.
- High 4 MSPS throughput rate.
- Space-saving 3 mm × 3 mm LFCSP.
- Integrated oversampling block to increase dynamic range and SNR and to reduce SCLK speed requirements.
- Single-ended analog inputs.
- Small sampling capacitor reduces amplifier drive burden.
Applications
- Motor control position feedback
- Motor control current sense
- Sonar
- Power quality
- Data acquisition systems
- Erbium doped fiber amplifier (EDFA) applications
- Inphase and quadrature demodulation
Product Categories
Markets and Technologies
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
-
Fast Reacting, Optical Encoder Feedback System for Miniature Motor Driven Applications4/1/2020 Analog Dialogue
-
High Accuracy Resolver Simulator System with Fault Injection Function8/16/2019 Analog Dialogue
Product Recommendations
AD7386 Companion Parts
Recommended Driver Amplifiers
- For Precision low power Application: ADA4807-2, ADA4805-2.
- For High Accuracy, Low noise, low distortion application: ADA4896-2, ADA4945-1, LTC6227.
- For Precision, low density Application: ADA4940-2.
Recommended Low Dropout Regulators
- For Vcc(3.3V) and Vlogic(2.3V): ADP166, LT3023.
- For ADC Driver Power supply Vs+ and VS-: ADP7104, ADP7182, LT3032 Series.
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD7386BCPZ-RL | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) | |
| AD7386BCPZ-RL7 | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) | |
| Wafer Fabrication Data |
Sample & Buy
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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.