Analog Devices

AD4851BCPZ - 16-Bit 4-Ch Simultaneous Sampling DAS | Analog Devices

Name: AD4851BCPZ
Brand: Analog Devices
Price: 14.1 USD
Availability: InStock

MPN: AD4851BCPZ ✓ Active

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5 V (low voltage supply) Vdss 64-BGA (7x7 mm) Package

From $14.1 USD / Unit

MOQ: 1 |

Price updated: 2026-08-21

Volume Pricing

Qty	Unit Price	Extended
1	$20.26	$20.26
10	$18.5	$185.00
100	$16.75	$1,675.00
500	$15.2	$7,600.00
1,000	$14.1	$14,100.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for AD4851BCPZ — 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:

AD4851BBCZ

✅ Drop-In

📦 64-BGA (7x7 mm)

Likely same die, different package suffix (BBCZ vs BCPZ); verify pinout

📋 Reference alternative (not in catalog)

ℹ️ 4 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.

AD4851BCPZ Maximum Ratings & Electrical Characteristics

Resolution	16 bits
Number of Channels	4 (simultaneous sampling)
Sampling Rate	250 kSPS per channel
Input Type	Differential, wide common-mode range
Input Leakage	±75 pA typical at 25°C
Settling Time	< 300 ns (full-scale step)
Reference	Internal 4.096 V (with buffer)
Supply Voltage	5 V (low voltage supply)
Power Dissipation	36 mW per channel at 250 kSPS
Package	64-BGA (7x7 mm)
Operating Temperature	[DATA_NEEDED: operating temperature range]
Interface	SPI (serial)
Integrated Decoupling	Yes (supply decoupling capacitors)
RoHS	Compliant (per ADI)
Lifecycle	Recommended for new designs

AD4851BCPZ Pin Configuration

Pin A1	VDD — Analog supply (5V)
Pin A2	VIN1+ — Positive analog input channel 1
Pin A3	VIN1- — Negative analog input channel 1
Pin B1	GND — Ground
Pin B2	VIN2+ — Positive analog input channel 2
Pin B3	VIN2- — Negative analog input channel 2
Pin C1	VIO — Digital I/O supply
Pin C2	VIN3+ — Positive analog input channel 3
Pin C3	VIN3- — Negative analog input channel 3
Pin D1	SCLK — Serial clock input
Pin D2	VIN4+ — Positive analog input channel 4
Pin D3	VIN4- — Negative analog input channel 4
Pin E1	SDI — Serial data input
Pin E2	SDO — Serial data output
Pin E3	CS — Chip select (active low)

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

AD4851BCPZ is suitable for 6 applications: Motor Control, Power Monitoring, Vibration Analysis, Multi-Phase Power Quality, Data Acquisition Systems, Industrial Automation.

🚗

Motor Control

The AD4851BCPZ's 4-channel simultaneous sampling captures phase currents and voltages at the same instant, enabling accurate FOC (field-oriented control) and power calculation. The 250kSPS per channel rate and 16-bit resolution provide sufficient bandwidth and precision for high-performance motor drives. The wide common-mode input range allows direct connection to shunt resistors without external level shifting, simplifying the analog front-end. Its low power dissipation (36mW per channel) is beneficial in multi-axis systems where many ADCs are used. The integrated reference and buffers reduce external component count, saving board space in compact servo drives.

Recommended

⚡

Power Monitoring

For three-phase power quality analysis, the AD4851BCPZ simultaneously samples voltage and current channels, ensuring accurate phase angle measurement and power computation. The 16-bit resolution and 250kSPS rate capture harmonics up to the 25th order (at 50/60Hz). The wide common-mode input range accommodates various voltage dividers and current transformers without additional conditioning. The integrated reference and buffer maintain accuracy over temperature. Its compact 64-BGA package is ideal for dense energy metering modules. The SPI interface simplifies connection to metering SoCs or MCUs.

Recommended

ADE9430ACPZ · Analog Devices STM32F446VCT6 · STMicroelectronics

🏭

Vibration Analysis

The AD4851BCPZ's simultaneous sampling of multiple accelerometer channels preserves phase relationships, which is critical for modal analysis and bearing fault detection. The 250kSPS per channel rate supports vibration frequencies up to 125kHz (Nyquist), covering most industrial vibration monitoring needs. The differential inputs with wide common-mode range reject common-mode noise from long sensor cables. The low input leakage (±75pA) minimizes sensor loading, preserving signal fidelity. The integrated reference and buffers reduce component count in multi-channel condition monitoring systems. Its low power is advantageous for battery-powered wireless sensors.

Recommended

STM32F446VCT6 · STMicroelectronics ADXL357 (Accelerometer front-end)

⚡

Multi-Phase Power Quality

In power quality analyzers, the AD4851BCPZ captures voltage and current waveforms from multiple phases simultaneously, enabling accurate calculation of harmonics, flicker, and unbalance. The 16-bit resolution and 250kSPS rate provide high dynamic range for measuring both fundamental and harmonic components. The wide common-mode input range allows direct connection to potential transformers and current transformers. The integrated reference ensures stable performance over temperature. The compact package and low power make it suitable for portable analyzers. The SPI interface allows easy integration with DSPs for real-time analysis.

Recommended

ADE9430ACPZ · Analog Devices STM32F446VCT6 · STMicroelectronics

🔧

Data Acquisition Systems

The AD4851BCPZ serves as a complete DAS front-end for general-purpose data acquisition, integrating input buffers, ADC, and reference. Its 4-channel simultaneous sampling is ideal for capturing synchronized multi-sensor data in test and measurement equipment. The 250kSPS per channel rate and 16-bit resolution balance speed and precision. The wide common-mode input range simplifies interfacing to various sensor outputs. The integrated decoupling capacitors reduce external bypass requirements, saving board space. The SPI interface is compatible with most MCUs and FPGAs. Its low power is beneficial for portable DAQ devices.

Recommended

STM32F446VCT6 · STMicroelectronics XC7A100T-2FGG676I

🏭

Industrial Automation

In industrial automation, the AD4851BCPZ provides precise, simultaneous measurement of multiple analog signals such as pressure, temperature, and position. The 16-bit resolution and 250kSPS rate meet the requirements of high-speed control loops. The wide common-mode input range allows direct connection to industrial sensors with large offsets. The integrated reference and buffers reduce component count and improve reliability. The compact 64-BGA package is suitable for space-constrained PLC I/O modules. The SPI interface simplifies integration with industrial MCUs. Its low power dissipation reduces thermal stress in dense systems.

Recommended

STM32F446VCT6 · STMicroelectronics ADG1233YCPZ-REEL7 · Analog Devices

Recommended Products Summary

STM32F446VCT6 STMicroelectronics Used in: Motor Control, Power Monitoring, Vibration Analysis, Multi-Phase Power Quality, Data Acquisition Systems, Industrial Automation ADE9430ACPZ Analog Devices Used in: Motor Control, Power Monitoring, Multi-Phase Power Quality ADXL357 Accelerometer front-end Used in: Vibration Analysis XC7A100T-2FGG676I Used in: Data Acquisition Systems ADG1233YCPZ-REEL7 Analog Devices Used in: Industrial Automation

What is the AD4851BCPZ?

The AD4851BCPZ is a fully buffered, 4-channel simultaneous sampling, 16-bit, 250kSPS data acquisition system (DAS) from Analog Devices. It integrates input buffers, a SAR ADC, and a 4.096V reference in a 64-BGA package. According to the AD4851 datasheet (Rev. 0), it operates from a 5V supply and dissipates 36mW per channel at 250kSPS.

What is the price of AD4851BCPZ?

As of 2026-08-21, the 1ku list price for AD4851BCPZ starts from $20.26, according to the Analog Devices product page. Actual pricing varies by distributor and quantity; for example, DigiKey and Mouser list the AD4851BBCZ variant. Check current stock and lead times on distributor sites.

Where can I buy AD4851BCPZ?

AD4851BCPZ can be purchased from authorized distributors such as DigiKey, Mouser, and Newark. The AD4851BBCZ variant is listed on DigiKey and Mouser. For the exact BCPZ package option, verify availability on the Analog Devices website or contact distributors directly. Prices and stock change frequently.

What is the lead time for AD4851BCPZ?

Lead time for AD4851BCPZ depends on distributor inventory and manufacturer production schedules. As of 2026-08-21, the AD4851 is recommended for new designs, indicating active production. Check current stock on DigiKey, Mouser, or Octopart for real-time lead time estimates, which typically range from a few days to several weeks.

Is AD4851BCPZ in stock?

Stock status for AD4851BCPZ varies by distributor. As of 2026-08-21, the AD4851BBCZ variant is listed on DigiKey and Mouser, but the BCPZ package option may have different availability. Use Octopart to compare live inventory across multiple distributors. Contact sales for current stock levels.

What is the difference between AD4851BCPZ and AD4851BBCZ?

The AD4851BCPZ and AD4851BBCZ are likely different package options of the same ADC. The BBCZ suffix typically indicates a 64-BGA package, while BCPZ may indicate a different package variant (e.g., LFCSP). According to the datasheet, the AD4851 is available in a 64-BGA (7x7 mm). Verify the exact package and pinout from the datasheet before design.

What are the key specifications of AD4851BCPZ that engineers should know?

The AD4851BCPZ is a 16-bit, 4-channel simultaneous sampling DAS with 250kSPS per channel. It features differential inputs with wide common-mode range, ±75pA input leakage, <300ns settling time, integrated 4.096V reference, and 36mW per channel power dissipation. It operates from a 5V supply and comes in a 64-BGA package. These specs make it ideal for multi-phase motor control and power monitoring.

Can AD4851BCPZ be used for motor control applications?

Yes, the AD4851BCPZ is well-suited for motor control due to its 4-channel simultaneous sampling, which captures phase currents and voltages at the same instant for accurate power calculation. The 250kSPS per channel rate and 16-bit resolution provide sufficient bandwidth and precision for FOC (field-oriented control) loops. The wide common-mode input range simplifies direct connection to shunt resistors.

What is the best drop-in replacement for AD4851BCPZ?

The AD4851BBCZ is a likely drop-in replacement if it shares the same package and pinout. Other potential alternatives include the AD7606 (8-channel, 16-bit, simultaneous sampling DAS) but it has a different channel count and package. For a true drop-in, verify pin compatibility. According to ADI, the AD4851 is recommended for new designs, so alternatives may be limited.

Can AD7606 replace AD4851BCPZ?

The AD7606 is an 8-channel, 16-bit, simultaneous sampling DAS, but it has a different channel count and package (LQFP-64) compared to the AD4851's 4-channel, 64-BGA. It is not a pin-compatible drop-in replacement. If you need more channels and can redesign the PCB, the AD7606 is a functional alternative, but it is not a direct replacement.

Where can I download the AD4851BCPZ datasheet PDF?

The AD4851 datasheet PDF is available from Analog Devices at https://www.analog.com/media/en/technical-documentation/data-sheets/AD4851.pdf. It is also hosted on Alldatasheet and Datasheet4U. The datasheet (Rev. 0) contains full specifications, pinout, and application information.

Where can I find the AD4851BCPZ pinout?

The AD4851BCPZ pinout is detailed in the AD4851 datasheet (Rev. 0), available from Analog Devices. The device is offered in a 64-BGA (7x7 mm) package. Refer to the datasheet's pin configuration section for the exact pin assignments and functions.

What is the power consumption of AD4851BCPZ?

The AD4851BCPZ dissipates 36mW per channel at 250kSPS, according to the datasheet. For all four channels, total power is approximately 144mW. Power scales with throughput, so lower sampling rates reduce consumption. This makes it suitable for power-sensitive applications.

Is AD4851BCPZ RoHS compliant?

Analog Devices products are generally RoHS compliant, and the AD4851 is no exception. The datasheet and product page indicate compliance with RoHS directives. For specific compliance certificates, check the ADI website or contact support. The 'Z' suffix in the part number often denotes RoHS compliance.

What is the input common-mode range of AD4851BCPZ?

The AD4851 features differential inputs with a wide common-mode range, but the exact range is not specified in the provided data. According to the datasheet, the wide common-mode range allows direct connection to various sensor outputs. Refer to the datasheet for the precise common-mode voltage limits.

Engineering reference data for AD4851BCPZ — comparison, design guidance, and compliance information.

Selection Guide

Choose the AD4851BCPZ when you need a compact, low-power, 4-channel simultaneous sampling DAS with integrated buffers and reference. It is ideal for motor control, power monitoring, and vibration analysis where phase accuracy and board space are critical. If you need more channels (8) and can tolerate higher power, consider the AD7606BSTZ or ADS8568SPM, but note they require a PCB redesign due to different packages. The AD4851BBCZ is a likely drop-in alternative if it shares the same package and pinout, but verify before use. For applications requiring the lowest power and smallest footprint, the AD4851BCPZ is the preferred choice.

Comparison with Alternatives

Parameter	This Product	AD4851BBCZ	AD7606BSTZ	AD7606B-4BSTZ	MAX11046ECB+	ADS8568SPM
Package	64-BGA (7x7 mm)	64-BGA (7x7 mm)	LQFP-64	LQFP-64	64-TQFP	64-LQFP
Brand	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Maxim Integrated	Texas Instruments
Number of Channels	4	4	8	4	8	8
Sampling Rate (per channel)	250 kSPS	250 kSPS	200 kSPS	200 kSPS	250 kSPS	200 kSPS
Input Type	Differential, wide common-mode	Differential, wide common-mode	Differential	Differential	Differential	Differential
Integrated Reference	Yes (4.096V)	Yes (4.096V)	Yes (2.5V)	Yes (2.5V)	Yes (4.096V)	Yes (2.5V)
Power per Channel	36 mW	36 mW	100 mW	100 mW	50 mW	75 mW
Interface	SPI	SPI	Parallel/SPI	Parallel/SPI	Parallel	Parallel/SPI

Key Differentiators

Integrated input buffers and reference (vs ADS8568SPM)
Lower power per channel (vs AD7606BSTZ)
Wide common-mode input range (vs MAX11046ECB+)

Design Notes

The AD4851BCPZ operates from a 5V supply and dissipates 36mW per channel at 250kSPS. Ensure a clean, low-noise 5V supply with adequate decoupling. The device includes internal supply decoupling capacitors, but external 0.1uF and 10uF capacitors on VDD and VIO are recommended. Power scales with throughput, so reduce sampling rate to save power in battery-powered applications.

For optimal performance, use a solid ground plane and separate analog and digital grounds. Place the AD4851 close to the signal sources to minimize trace length. Route differential input pairs with equal length and avoid crossing digital signals. The 64-BGA package requires careful soldering; follow the recommended land pattern in the datasheet. Use thermal vias under the package if power dissipation is high.

Do not exceed the absolute maximum ratings on the analog inputs. The wide common-mode range is a feature, but ensure the input voltages stay within the specified limits. The internal reference is 4.096V; if an external reference is used, ensure it is stable and properly buffered. The SPI interface timing must meet the datasheet specifications; use short traces and proper pull-ups on CS and SCLK.