Analog Devices

AD4086BCPZ - 14-Bit 40 MSPS SAR ADC | Analog Devices

Name: AD4086BCPZ
Brand: Analog Devices
Price: 19 USD
Availability: InStock

MPN: AD4086BCPZ ✓ Active

In Stock Ships in 1-3 business days

1.8 V (core), 3.3 V (digital I/O) Vdss LFCSP Package

From $19 USD / Unit

MOQ: 1 |

Price updated: 2026-08-21

Volume Pricing

Qty	Unit Price	Extended
1	$28.45	$28.45
10	$26.5	$265.00
100	$24	$2,400.00
500	$21.5	$10,750.00
1,000	$19	$19,000.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for AD4086BCPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

AD4086BCPZ-RL

✅ Drop-In

📦 LFCSP

Same die and package, tape and reel packaging variant

📋 Reference alternative (not in catalog)

AD4086BCPZ-R2

✅ Drop-In

📦 LFCSP

Same die and package, 2k reel packaging variant

📋 Reference alternative (not in catalog)

ℹ️ 3 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

AD4086BCPZ Maximum Ratings & Electrical Characteristics

Resolution	14 bits
Sampling Rate	40 MSPS
Architecture	SAR
Number of Inputs	1
Input Type	Single-ended
Data Interface	SPI
Reference Type	External, Internal
Supply Voltage	1.8 V (core), 3.3 V (digital I/O)
Package	LFCSP
Operating Temperature Range	-40°C to +125°C
Integrated FIFO	16K results
Integrated LDOs	Yes (core and digital interface)
Integrated Reference Buffer	Yes (low drift)
Integrated Decoupling Capacitors	Yes (supply and reference)
RoHS	Compliant

AD4086BCPZ Pin Configuration

Pin 1	AVDD — Analog supply voltage (1.8V)
Pin 2	AVSS — Analog ground
Pin 3	VIN — Analog input
Pin 4	REF — Reference input/output
Pin 5	REFGND — Reference ground
Pin 6	DVDD — Digital supply voltage (3.3V)
Pin 7	DVSS — Digital ground
Pin 8	SCLK — Serial clock input
Pin 9	SDI — Serial data input
Pin 10	SDO — Serial data output
Pin 11	CS — Chip select (active low)
Pin 12	BUSY — Busy indicator output

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

AD4086BCPZ is suitable for 6 applications: Medical Imaging Front End, High-Speed Data Acquisition, Communications Receivers, Industrial Instrumentation, Portable Test Equipment, Communications Infrastructure.

💊

Medical Imaging Front End

The AD4086BCPZ's 14-bit resolution and 40 MSPS sampling rate enable high dynamic range in medical imaging systems such as ultrasound and CT scanners. Its low noise and low power design support dense channel arrays, while the integrated FIFO reduces host processor loading during continuous data acquisition. The internal LDOs and reference buffer simplify power and reference design, ensuring consistent performance across temperature. The compact LFCSP package fits space-constrained imaging modules, and the SPI interface allows easy integration with FPGAs or DSPs.

Recommended

🔧

High-Speed Data Acquisition

In high-speed data acquisition systems, the AD4086BCPZ provides 14-bit resolution at 40 MSPS, capturing fast transients with high fidelity. The integrated 16K FIFO allows burst-mode data transfer, reducing host interrupt overhead and enabling efficient data streaming. The low drift reference buffer ensures accurate conversions over temperature, critical for industrial and scientific instrumentation. The LFCSP package and integrated decoupling capacitors simplify PCB layout, reducing design time and board space. The SPI interface supports daisy-chaining for multi-channel systems.

Recommended

AD7980BCPZ-RL7 · Analog Devices AD7606BSTZ-4 · Analog Devices

🌐

Communications Receivers

The AD4086BCPZ is suitable for IF/baseband sampling in communications receivers, offering 40 MSPS sampling to digitize intermediate frequencies with sufficient bandwidth. Its low noise performance preserves signal integrity, while the integrated LDOs provide clean supply rails for the ADC core and digital interface, reducing external filtering. The 16K FIFO helps manage data flow in bursty communication protocols. The small LFCSP package is ideal for compact radio modules, and the SPI interface simplifies connection to baseband processors.

Recommended

ADCLK905 · Analog Devices ADF4351 (Frequency synthesizer for local oscillator generation)

🏭

Industrial Instrumentation

For industrial instrumentation, the AD4086BCPZ offers high-speed, high-resolution conversion for applications like vibration analysis and power monitoring. Its wide operating temperature range (-40°C to +125°C) ensures reliability in harsh environments. The integrated reference buffer and LDOs reduce external component count, lowering BOM cost and improving system reliability. The SPI interface allows easy integration with industrial microcontrollers, and the 16K FIFO supports efficient data logging. The LFCSP package is robust for industrial PCBs.

Recommended

AD7606BSTZ-6RL · Analog Devices AD7172-2BRUZ-RL7 · Analog Devices

📱

Portable Test Equipment

The AD4086BCPZ's low power consumption makes it ideal for battery-operated portable test equipment such as oscilloscopes and spectrum analyzers. The integrated LDOs and reference buffer minimize external power components, saving board space and extending battery life. The 40 MSPS sampling rate enables real-time signal analysis, while the 16K FIFO reduces processor wake-ups, further saving power. The compact LFCSP package fits handheld devices, and the SPI interface supports low-pin-count microcontrollers.

Recommended

AD7980ARMZ · Analog Devices AD7608BSTZ · Analog Devices

🌐

Communications Infrastructure

In communications infrastructure, the AD4086BCPZ provides high-speed digitization for base stations and software-defined radios. Its 14-bit resolution and 40 MSPS sampling rate support wideband signal processing, while the integrated FIFO and LDOs simplify system design. The low noise performance ensures high SNR for weak signal detection. The LFCSP package is suitable for high-density line cards, and the SPI interface allows seamless integration with FPGAs. The device's active lifecycle status ensures long-term availability for infrastructure projects.

Recommended

ADCLK905 · Analog Devices AD7175-8BCPZ-RL7 · Analog Devices

Recommended Products Summary

What is the resolution and sampling rate of AD4086BCPZ?

The AD4086BCPZ is a 14-bit SAR ADC with a maximum sampling rate of 40 MSPS. According to the Analog Devices AD4086 datasheet (Rev. 0), it is recommended for new designs and integrates a 16K FIFO to reduce host loading.

What is the price of AD4086BCPZ?

The 1ku list price for AD4086BCPZ starts at $28.45 as of 2026-08-22. Actual pricing may vary by distributor and quantity; check DigiKey, Mouser, or Xecor for current quotes.

Where can I buy AD4086BCPZ online?

AD4086BCPZ can be purchased from authorized distributors such as DigiKey, Mouser, and Newark, as well as online marketplaces like Xecor. As of 2026-08-22, availability is confirmed on these platforms.

What is the lead time for AD4086BCPZ?

Lead time for AD4086BCPZ is typically 8-12 weeks from Analog Devices, but it may vary by distributor and current demand. Check with your preferred distributor for real-time lead time information as of 2026-08-22.

Is AD4086BCPZ in stock?

As of 2026-08-22, AD4086BCPZ is listed as active and recommended for new designs. Stock availability varies by distributor; check DigiKey, Mouser, and Xecor for current inventory levels.

AD4086BCPZ vs AD4086BBCZ - which is better for my design?

AD4086BCPZ and AD4086BBCZ share the same dual SAR/Delta-Sigma core, but differ in package: AD4086BCPZ uses LFCSP while AD4086BBCZ uses 49-CSPBGA (5x5). Choose AD4086BCPZ for board layouts preferring LFCSP, and AD4086BBCZ for CSPBGA. Both offer 14-bit, 40 MSPS performance.

What is the difference between AD4086BCPZ and AD7685BRMZ?

AD4086BCPZ is a 14-bit, 40 MSPS SAR ADC with integrated FIFO and LDOs, while AD7685BRMZ is a 16-bit SAR ADC with SPI interface, but lower speed (typically 250 kSPS). AD4086BCPZ is suited for high-speed applications; AD7685BRMZ is for cost-sensitive, lower-speed precision.

When should I choose AD4086BCPZ over AD4086BBCZ?

Choose AD4086BCPZ when your PCB design requires an LFCSP package, which offers a smaller footprint and better thermal performance for dense layouts. Choose AD4086BBCZ if you prefer a CSPBGA package with different routing options. Both are pin-compatible in function but not package-compatible.

What is the best drop-in replacement for AD4086BCPZ?

The best drop-in replacement for AD4086BCPZ is AD4086BBCZ, which shares the same dual SAR/Delta-Sigma core and 14-bit, 40 MSPS performance, but in a different package (CSPBGA). For a true pin-compatible LFCSP alternative, consider AD4086BCPZ-RL (tape and reel variant) or AD4086BCPZ-R2 (2k reel).

Can AD4086BBCZ replace AD4086BCPZ?

Yes, AD4086BBCZ can functionally replace AD4086BCPZ as it has the same core and performance, but it is not a drop-in replacement due to different package (CSPBGA vs LFCSP). PCB redesign is required to accommodate the package change.

Where can I download the AD4086BCPZ datasheet PDF?

The AD4086BCPZ datasheet PDF is available from Analog Devices at https://www.analog.com/media/en/technical-documentation/data-sheets/ad4086.pdf. It contains full specifications, pinout, and application information.

Where can I find the AD4086BCPZ pinout?

The AD4086BCPZ pinout is detailed in the official datasheet (Rev. 0) from Analog Devices, available at the datasheet URL. The LFCSP package pin assignments are clearly illustrated in the datasheet.

What are the key specifications of AD4086BCPZ that engineers should know?

AD4086BCPZ is a 14-bit SAR ADC with 40 MSPS sampling rate, integrated 16K FIFO, low drift reference buffer, LDO regulators for core and digital rails, and internal decoupling capacitors. It operates from 1.8V core and 3.3V digital supplies, and is recommended for new designs.

Hey Google, what can replace AD4086BCPZ?

AD4086BCPZ can be replaced by AD4086BBCZ (same core, different package) or AD7685BRMZ (16-bit, lower speed) for functional alternatives. For a drop-in LFCSP replacement, consider AD4086BCPZ-RL or AD4086BCPZ-R2 tape and reel variants.

Is AD4086BCPZ the same as AD4086BBCZ?

No, AD4086BCPZ and AD4086BBCZ are not the same. They share the same dual SAR/Delta-Sigma core and 14-bit, 40 MSPS performance, but AD4086BCPZ is in an LFCSP package while AD4086BBCZ is in a 49-CSPBGA (5x5) package. They are not pin-compatible.

What is the best Analog Devices equivalent for AD4086BCPZ?

The best Analog Devices equivalent for AD4086BCPZ is AD4086BBCZ, which offers identical core performance but in a different package. For a pin-compatible LFCSP option, AD4086BCPZ-RL (tape and reel) is the direct equivalent.

Engineering reference data for AD4086BCPZ — comparison, design guidance, and compliance information.

Selection Guide

Choose AD4086BCPZ when you need a 14-bit, 40 MSPS SAR ADC with integrated FIFO and LDOs for high-speed, low-power applications. It is ideal for medical imaging, communications, and portable test equipment. If you require a different package, consider AD4086BBCZ (CSPBGA) but note the PCB redesign. For lower-speed, cost-sensitive applications, AD7685BRMZ offers 16-bit resolution but at 250 kSPS. The AD4086BCPZ-RL and -R2 are tape and reel variants for automated assembly. All alternatives are from Analog Devices, ensuring consistent quality and support.

Comparison with Alternatives

Parameter	This Product	AD4086BCPZ-RL	AD4086BCPZ-R2	AD4086BBCZ	AD4086BBCZ-RL7	AD7685BRMZ
Package	LFCSP	LFCSP	LFCSP	49-CSPBGA (5x5)	49-CSPBGA (5x5)	MSOP-10
Brand	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices
Resolution	14 bits	14 bits	14 bits	14 bits	14 bits	16 bits
Sampling Rate	40 MSPS	40 MSPS	40 MSPS	40 MSPS	40 MSPS	250 kSPS
Integrated FIFO	16K	16K	16K	16K	16K	None
Integrated LDOs	Yes	Yes	Yes	Yes	Yes	No
Integrated Reference Buffer	Yes	Yes	Yes	Yes	Yes	No
Data Interface	SPI	SPI	SPI	SPI	SPI	SPI

Key Differentiators

Integrated 16K FIFO reduces host processor loading (vs AD7685BRMZ)
Integrated LDOs and reference buffer simplify power design (vs AD7685BRMZ)
Higher sampling rate for high-speed applications (vs AD7685BRMZ)

Design Notes

The AD4086BCPZ integrates LDO regulators for the ADC core and digital interface, simplifying power supply design. Ensure the external supply voltage is within the recommended range (1.8V for AVDD, 3.3V for DVDD) and provide adequate decoupling on the supply pins. The internal LDOs reduce external component count, but proper PCB layout with low-inductance paths is still essential for optimal performance.

The AD4086BCPZ integrates critical supply and reference decoupling capacitors inside the package, which minimizes parasitic inductance and simplifies PCB layout. However, it is still important to place external decoupling capacitors close to the power pins to handle transient currents. Use a solid ground plane and avoid routing digital signals near the analog input to maintain signal integrity.

Ensure the input drive amplifier settling time is adequate for 40 MSPS sampling to avoid conversion errors. The reference source impedance should be low to maintain accuracy. Use the integrated 16K FIFO to burst-read conversion results, reducing host overhead. Verify the input common-mode range matches the driver output for optimum SNR/SFDR.