Alternative Parts
Overview
Features and Benefits
- 16-bit/14-bit ADC family
- Dual simultaneous sampling
- Fully differential analog inputs
- 4 MSPS throughput conversion rate
- SNR (typical)
- 92.5 dB, VREF = 3.3 V external at AD7380 (16-bit)
- 85.4 dB, VREF = 3.3 V external at AD7381 (14-bit)
- 101 dB with ×16 OSR
- On-chip oversampling function
- Resolution boost function
- INL (maximum)
- 2.0 LSBs at 16-bit
- 1.0 LSB at 14-bit
- 2.5 V internal reference
- High speed serial interface
- −40°C to +125°C operation
- 16-lead LFCSP, 3 mm × 3 mm
- Wide common-mode range
- Alert function
Product Details
The AD7380/AD7381 are a 16-bit and 14-bit pin-compatible family of dual simultaneous sampling, high speed, low power, 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 up to 4 MSPS. The analog input type is differential, accepts a wide common-mode input voltage, and is sampled and converted on the falling edge of CS.
An integrated on-chip oversampling block improves dynamic range and reduces noise at lower bandwidths. A buffered 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 simple interfacing to microprocessors or digital signal processors (DSPs). The device is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using the separate logic supply.
The AD7380/AD7381 are available in a 16-lead lead frame chip scale package (LFCSP) with operation specified from −40°C to +125°C.
Product highlights
- Dual simultaneous sampling and conversion with two complete ADC functions.
- Pin-compatible product family.
- High 4 MSPS throughput rate.
- Space saving 3 mm × 3 mm LFCSP.
- An integrated oversampling block to increase dynamic range, reduce noise, and reduce SCLK speed requirements.
- Differential analog inputs with wide common-mode range.
- 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
- 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
Device Drivers
Tools & Simulations
Precision ADC Driver Tool
The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input
IBIS Models
IBS
AD738x IBIS Model
171.67 K
Product Recommendations
AD7381 Companion Parts
Recommended Driver Amplifiers
- For Precision low power Application: ADA4807-2, ADA4805-2.
- For Precision, low density Application: ADA4940-2.
- For high frequency, low noise, low distortion Application: ADA4896-2.
Recommended Low Dropout Regulators
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 |
|---|---|---|---|---|
| AD7381BCPZ-R2 | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) | |
| AD7381BCPZ-RL | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) | |
| AD7381BCPZ-RL7 | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) | |
| Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
Sample & Buy
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.