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Analog Devices Inc. AD7386-4BCPZ
- Part No.:
- AD7386-4BCPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-UFQFN Exposed Pad, CSP
- Datasheet:
-
AD7386-4BCPZ.pdf
- Description:
- 2MSPS 16-BIT QUAD SINGLE ENDED S
- Quantity:
- Payment:
- Shipping:
Inventory:167
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Product details
Overview
AD7386-4BCPZ from Analog Devices is a 16-bit, quad, simultaneous-sampling SAR ADC with single-ended analog inputs, 4 MSPS throughput, 84.7 dB SNR (VREF = 3.3 V), ±4 LSB INL, and on-chip 2.5 V reference. It targets high-precision motor control position feedback and current sensing where channel-to-channel isolation (−120 dB) and aperture jitter (20 ps) are critical.
For engineers reviewing the AD7386-4BCPZ datasheet, AD7386-4BCPZ pinout, AD7386-4BCPZ application, or AD7386-4BCPZ equivalent, this page delivers verified specs including oversampling-enabled 92 dB dynamic range, 24-lead LFCSP package mapping, real-world timing constraints (tCONVERT = 190 ns), and validated alternatives for multi-channel data acquisition systems operating from −40°C to +125°C.
Technical Context
The AD7386-4BCPZ integrates four independent SAR ADC cores sharing a common serial interface with four dedicated SDO pins (SDOA–SDOD). Each core uses dual capacitive DAC architecture with 15 pF sampling capacitance and 200 Ω input switch resistance, enabling low amplifier drive burden and fast 110 ns acquire time.
Its oversampling block supports normal averaging and rolling average modes, delivering up to 2-bit resolution boost and 92 dB dynamic range at OSR = 8×. The ALERT function operates with 220 ns latency from CS edge and thresholds configurable via Alert Low/High Threshold Registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees no missing codes across full temperature range (−40°C to +125°C) |
| Throughput Rate | 4 MSPS per channel - enables real-time capture of fast transients in motor current waveforms |
| SNR | 84.7 dB at VREF = 3.3 V - supports >13.8 ENOB for precision closed-loop control |
| INL Error | ±4 LSB (external VREF) - ensures linearity-critical applications like position encoder interpolation remain within ±0.06% full-scale error |
| Channel Isolation | −120 dB - prevents crosstalk between phase-current channels in 3-phase motor drives |
| Aperture Jitter | 20 ps - limits sampling uncertainty to <0.02° phase error at 100 kHz input |
| Oversampling Gain | 2-bit resolution boost - increases effective resolution to 18-bit at reduced bandwidth without external hardware |
Pinout & Package
AD7386-4BCPZ is housed in a 24-lead lead frame chip scale package (LFCSP), CP-24-251, with exposed pad requiring GND connection for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,5,14,16) | Ground reference | Four dedicated ground pins minimize return path impedance and reduce inter-channel coupling |
| VLOGIC (Pin 2) | Logic supply | Independent 1.65 V–3.6 V rail enables interfacing with 1.8 V/2.5 V/3.3 V controllers without level shifters |
| REGCAP (Pin 3) | Internal regulator decoupling | 1 µF capacitor stabilizes 1.9 V internal logic regulator; required for stable digital interface operation |
| VCC (Pin 4) | Analog power supply | 3.0 V–3.6 V supply powers SAR cores and reference; 1 µF decoupling essential for SNR performance |
| AINA0/AINA1 (Pins 12/13) | ADC A analog inputs | Single-ended pair for Channel A; accepts 0 V to VREF; 18 pF track-mode input capacitance |
| REFIO (Pin 17) | Reference I/O | Configurable as 2.5 V output (internal ref) or 2.5 V–3.3 V input; requires 1 µF decoupling for noise immunity |
| CS (Pin 18) | Chip select | Active-low signal initiates conversion and frames serial data; falling edge triggers 190 ns conversion start |
| SDOA–SDOD (Pins 19–24) | Serial data outputs | Four independent SDO lines enable simultaneous readout of all four channels in 4-wire mode |
| SDOD/ALERT (Pin 24) | Multi-function terminal | Configurable as fourth data output or active-low alert; asserts within 220 ns of threshold violation |
Key Features
| Feature | Design Value |
|---|---|
| Quad simultaneous sampling | Four independent SAR cores sample at identical timestamps-critical for vector control of 3-phase motors |
| On-chip oversampling block | Reduces SCLK speed requirements by 4× at OSR = 4× while improving SNR by 2.5 dB and extending effective resolution |
| Out-of-range alert (ALERT) | Dedicated hardware comparator monitors all four channels against programmable thresholds with sub-250 ns response |
| 24-lead LFCSP package | 4 mm × 4 mm footprint with exposed pad achieves θJA = 48.4°C/W-enables high-density PCB layouts in space-constrained drives |
| Wide temperature range | Specified from −40°C to +125°C junction temperature-supports under-hood automotive and industrial motor drive environments |
Applications
| Motor Control Position Feedback | Motor Control Current Sense |
|---|---|
Use Scenario: High-bandwidth capture of resolver or encoder sine/cosine signals in servo drives. IC Role / Device Role / Timing Role: Simultaneous sampling of four analog inputs (A/B/X/Y) to compute absolute angular position with minimal phase skew. Use Value: 310 ps aperture delay match ensures <0.05° position error across channels at 10 kHz update rates. |
Use Scenario: Real-time measurement of three-phase motor currents plus DC bus voltage in inverters. IC Role / Device Role / Timing Role: Quad ADC captures Ia, Ib, Ic, and Vdc in one acquisition cycle for field-oriented control (FOC) algorithms. Use Value: −120 dB channel-to-channel isolation prevents current measurement corruption during high dI/dt switching events. |
| Data Acquisition Systems | Erbium Doped Fiber Amplifier (EDFA) |
Use Scenario: Multi-channel voltage monitoring in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Replaces four discrete 16-bit ADCs with single-package solution, reducing BOM count and layout area. Use Value: Pin-compatible family (AD7386-4/AD7387-4/AD7388-4) allows resolution scaling without PCB redesign. |
Use Scenario: Monitoring pump laser bias current and photodiode feedback in optical amplifiers. IC Role / Device Role / Timing Role: Simultaneous sampling of temperature, current, and optical power sensors for closed-loop gain stabilization. Use Value: 92 dB oversampled dynamic range at OSR = 8× resolves sub-µA current changes critical for EDFA stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7387-4BCPZ | 14-bit resolution, ±1 LSB INL, 82.4 dB SNR at 3.3 V - lower precision but improved linearity and lower power dissipation (165 mW vs. 191 mW) | Better suited for cost-sensitive motor control where 14-bit resolution suffices and tighter INL is prioritized over dynamic range | Select when system ENOB requirement is ≤13.5 bits and offset/gain match across channels is more critical than SNR |
| AD7388-4BCPZ | 12-bit resolution, ±0.2 LSB INL, 73.7 dB SNR at 3.3 V - highest linearity and lowest latency (190 ns conversion time maintained), but reduced dynamic range | Ideal for high-speed transient capture in protection relays where microsecond-level response dominates over resolution | Choose for fault detection applications requiring fastest possible decision latency and best channel matching, accepting 12-bit quantization |
Compared with AD7387-4BCPZ and AD7388-4BCPZ, the AD7386-4BCPZ delivers the highest resolution and SNR in the family-making it optimal for applications demanding >13.8 ENOB, such as precision servo position feedback and high-fidelity sensor data acquisition-while retaining identical timing, package, and interface compatibility.
Availability
AD7386-4BCPZ is available at Aetrix Electronics and suitable for motor control position feedback, motor control current sense, and data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7386-4BCPZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The AD7386-4BCPZ belongs to the AD738x-4 quad SAR ADC product line, engineered specifically for high-channel-count, high-throughput industrial sensing and motor control applications requiring simultaneous sampling, wide temperature operation, and integrated oversampling.
FAQ
What is the maximum sampling rate of the AD7386-4BCPZ?
The AD7386-4BCPZ achieves a maximum throughput rate of 4 MSPS per channel in single-channel pair mode. When alternating between channels using the sequencer (SEQ = 1), the effective rate drops to 2 MSPS per channel. This 4 MSPS capability enables real-time capture of fast-switching motor current waveforms without aliasing, and the AD7386-4BCPZ maintains full 16-bit resolution and specified SNR at this rate.
Does the AD7386-4BCPZ include an internal voltage reference?
Yes, the AD7386-4BCPZ integrates a 2.5 V band gap reference with 10 ppm/°C maximum temperature coefficient and 7 µVrms noise. This reference can be used internally or output on the REFIO pin for external circuitry. When enabled, it eliminates the need for an external reference component, simplifying design and reducing BOM cost-though the AD7386-4BCPZ also supports external references from 2.5 V to 3.3 V for higher accuracy applications.
How does the oversampling feature improve performance in the AD7386-4BCPZ?
The AD7386-4BCPZ's on-chip oversampling block supports normal and rolling average modes, delivering up to 2-bit resolution enhancement and increasing dynamic range from 84.7 dB to 92 dB at OSR = 8×. This reduces effective noise floor and relaxes anti-alias filter requirements, allowing slower SCLK speeds and easing FPGA/DSP interface timing-without adding external hardware or firmware overhead. The AD7386-4BCPZ implements this entirely in analog/digital logic, preserving low-latency operation.
What package type is used for the AD7386-4BCPZ?
The AD7386-4BCPZ is packaged in a 24-lead lead frame chip scale package (LFCSP), designated CP-24-251, measuring 4 mm × 4 mm with an exposed thermal pad. This package provides low thermal resistance (θJA = 48.4°C/W) and excellent high-frequency performance due to short internal bond wires. The AD7386-4BCPZ requires the exposed pad to be soldered to a solid GND plane for optimal thermal dissipation and EMI suppression.
Can the AD7386-4BCPZ operate across the full industrial temperature range?
Yes, the AD7386-4BCPZ is fully specified and guaranteed to operate from −40°C to +125°C junction temperature. All key parameters-including throughput rate, SNR, INL, and channel isolation-are characterized across this range. Its robust design, including 10 ppm/°C reference drift and matched aperture delay (310 ps max), makes the AD7386-4BCPZ suitable for under-hood automotive motor control, industrial drives, and outdoor infrastructure equipment.
AD7386-4BCPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-UFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 4M
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- 0:4
- Number of A/D Converters:
- 4
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 3V ~ 3.6V
- Features:
- Alert Function, Configurable Resolution, Multiplexed Input, Oversampling, Resolution Boost, Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 24-LFCSP (4x4)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7386-4BCPZ FAQ
1.How can I place an order for AD7386-4BCPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7386-4BCPZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7386-4BCPZ reliable?
The price and inventory of AD7386-4BCPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7386-4BCPZ is usually 5 days.
3.What payment methods are accepted for AD7386-4BCPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7386-4BCPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7386-4BCPZ?
AD7386-4BCPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7386-4BCPZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7386-4BCPZ?
For technical support, including AD7386-4BCPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7386-4BCPZ requirements.
6.How does Aetrix verify that AD7386-4BCPZ is sourced from the original manufacturer or authorized distributors?
All AD7386-4BCPZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7386-4BCPZ meets industry standards.
7.What is the process for return or replacement of AD7386-4BCPZ?
All AD7386-4BCPZ units undergo pre-shipment inspection (PSI). If there is an issue with AD7386-4BCPZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7386-4BCPZ part is unused and in its original packaging.
Return procedure for AD7386-4BCPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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