AD7388
RECOMMENDED FOR NEW DESIGNS4-Channel, 4 MSPS, 12-Bit, Dual, Simultaneous Sampling SAR ADCs
- Part Models
- 2
- 1ku List Price
- Starting From $11.96
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Device Drivers 1
Analog Dialogue 2
Webcast 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7388BCPZ-RL | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) | ||
| AD7388BCPZ-RL7 | 16-Lead LFCSP (3mm x 3mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Differential Amplifiers 2 | ||
| ADA4940-2 | PRODUCTION | Ultralow Power, Low Distortion ADC Driver |
| ADA4945-1 | RECOMMENDED FOR NEW DESIGNS | High Speed, ±0.1 µV/˚C Offset Drift, Fully Differential ADC Driver |
| LDO Linear Regulators 5 | ||
| ADP7104 | RECOMMENDED FOR NEW DESIGNS | 20 V, 500 mA, Low Noise, CMOS LDO |
| ADP7182 | RECOMMENDED FOR NEW DESIGNS | –28 V, −200 mA, Low Noise, Linear Regulator |
| ADP166 | PRODUCTION | Very Low Quiescent Current, 150 mA, LDO Regulator |
| LT3023 | RECOMMENDED FOR NEW DESIGNS | Dual 100mA, Low Dropout, Low Noise, Micropower Regulator |
| LT3032 Series | Dual 150mA Positive/Negative Low Noise Low Dropout Linear Regulator | |
| Operational Amplifiers (Op Amps) 5 | ||
| ADA4807-1 | RECOMMENDED FOR NEW DESIGNS |
3.1 nV/√Hz, 1 mA, 180 MHz, Rail-to-Rail Input/Output Amplifier |
| ADA4807-2 | RECOMMENDED FOR NEW DESIGNS |
3.1 nV/√Hz, 1 mA, 180 MHz, Rail-to-Rail Input/Output Amplifier |
| ADA4805-2 | RECOMMENDED FOR NEW DESIGNS | Dual, 0.2 µV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier |
| ADA4896-2 | RECOMMENDED FOR NEW DESIGNS | 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
| LTC6227 | LAST TIME BUY | 1nV/√Hz 420MHz GBW, 180V/µs, Low Distortion Rail-to-Rail Output Op Amps |
| Voltage References 2 | ||
| ADR4533 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 3.3V Voltage Reference |
| ADR4525 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference |
Evaluation Kits
Evaluating the AD7386 4-Channel 16-Bit, Dual Simultaneous Sampling, SAR ADC