AD4692BCPZ - 16-Channel 16-Bit SAR ADC | Analog Devices
MPN: AD4692BCPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.54 | $8.54 |
| 10 | $7.95 | $79.50 |
| 100 | $7.2 | $720.00 |
| 500 | $6.5 | $3,250.00 |
| 1,000 | $5.9 | $5,900.00 |
AD4692BCPZ Overview
An ADC is a device that converts an analog voltage into a digital representation. The AD4692 is a multiplexed SAR ADC, meaning it uses a single conversion engine shared across multiple input channels via an internal multiplexer. SAR ADCs are known for their high speed, low power, and excellent accuracy, making them suitable for a wide range of data acquisition systems. The AD4692 belongs to the family of data converters, which are essential in bridging the analog and digital worlds in applications such as industrial automation, medical instrumentation, and test equipment.
Key features of the AD4692BCPZ include 16 input channels, 16-bit resolution, and a 1 MSPS throughput. The Easy Drive technology reduces input current and voltage transients, allowing the use of smaller, lower-power amplifiers and references. Each channel has an averaging filter that can be configured to improve noise performance. The device operates from a single 5V supply and supports a wide analog input range, simplifying system design.
Technically, the AD4692 uses a charge redistribution SAR architecture with an internal reference buffer. The Easy Drive feature employs precharge buffers that significantly reduce the kickback charge, enabling direct connection to high-impedance sources without external drivers. The averaging filters can be programmed to average up to 128 samples, effectively increasing the resolution for low-frequency signals. The device also includes a flexible digital interface compatible with SPI, and supports daisy-chaining for multiple devices.
Typical applications include industrial process control, battery monitoring, data acquisition systems, and medical devices. The 16-channel input capability makes it ideal for monitoring multiple sensors, while the high accuracy and low noise ensure reliable measurements. The Easy Drive feature simplifies the analog front-end, reducing component count and board space.
When designing with the AD4692BCPZ, ensure proper decoupling of the AVDD and DVDD supplies with 10uF and 0.1uF capacitors. The reference input should be driven by a low-impedance source, and the analog inputs should be bypassed to ground to minimize noise. The device supports a power-down mode to reduce current consumption when not converting.
Drop-in alternatives for AD4692BCPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD4692BCPZ (same form factor and footprint) — differing in Supply Voltage, Input Type, Package, Sampling Rate, Number of Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD4692BCPZ-RL7
✅ Drop-In📋 Reference alternative (not in catalog)
AD4692BCPZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
AD4691BCPZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8 / Unit
View Datasheet →AD4692BCPZ-REEL
✅ Drop-In📋 Reference alternative (not in catalog)
AD4692BCPZ-REEL7
✅ Drop-In📋 Reference alternative (not in catalog)
AD4692BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 Bit |
| Number of Channels | 16 Input |
| Sampling Rate | 1 MSPS |
| Architecture | SAR |
| Input Type | Single-Ended |
| Interface | SPI |
| Supply Voltage | 5 V |
| Package | 32-LFCSP (5x5 mm) |
| Operating Temperature | -40C to +125C |
| Mounting Type | Surface Mount |
| Number of Inputs | 16 |
| Number of Converters | 1 |
| Reference Type | External |
| Data Interface | SPI, DSP |
| Features | Easy Drive, Averaging Filters |
AD4692BCPZ Pin Configuration
| Pin 1 | AVDD — Analog supply voltage |
| Pin 2 | VIN0 — Analog input channel 0 |
| Pin 3 | VIN1 — Analog input channel 1 |
| Pin 4 | VIN2 — Analog input channel 2 |
| Pin 5 | VIN3 — Analog input channel 3 |
| Pin 6 | VIN4 — Analog input channel 4 |
| Pin 7 | VIN5 — Analog input channel 5 |
| Pin 8 | VIN6 — Analog input channel 6 |
| Pin 9 | VIN7 — Analog input channel 7 |
| Pin 10 | VIN8 — Analog input channel 8 |
| Pin 11 | VIN9 — Analog input channel 9 |
| Pin 12 | VIN10 — Analog input channel 10 |
| Pin 13 | VIN11 — Analog input channel 11 |
| Pin 14 | VIN12 — Analog input channel 12 |
| Pin 15 | VIN13 — Analog input channel 13 |
| Pin 16 | VIN14 — Analog input channel 14 |
| Pin 17 | VIN15 — Analog input channel 15 |
| Pin 18 | GND — Ground |
| Pin 19 | REF — Reference input |
| Pin 20 | REFGND — Reference ground |
| Pin 21 | DVDD — Digital supply voltage |
| Pin 22 | SCLK — Serial clock input |
| Pin 23 | SDI — Serial data input |
| Pin 24 | SDO — Serial data output |
| Pin 25 | CS — Chip select |
| Pin 26 | BUSY — Busy output |
| Pin 27 | GPIO0 — General purpose I/O |
| Pin 28 | GPIO1 — General purpose I/O |
| Pin 29 | GPIO2 — General purpose I/O |
| Pin 30 | GPIO3 — General purpose I/O |
| Pin 31 | PD — Power down |
| Pin 32 | EP — Exposed pad (thermal) |
Typical Applications
AD4692BCPZ is suitable for 6 applications: Industrial Process Control, Battery Monitoring Systems, Medical Instrumentation, Data Acquisition Systems, Automotive Test Equipment, IoT and Smart Sensors.
Industrial Process Control
The AD4692BCPZ is ideal for industrial process control systems that monitor multiple sensors such as temperature, pressure, and flow. Its 16 channels allow direct connection to a wide array of transducers, while the 16-bit resolution ensures accurate measurement of process variables. The 1 MSPS sampling rate enables real-time monitoring and control loops, and the Easy Drive technology simplifies the analog front-end by reducing the need for high-bandwidth driver amplifiers. This reduces component count and power consumption, making it suitable for distributed control systems and PLCs.
Recommended
Battery Monitoring Systems
In battery monitoring, the AD4692BCPZ can measure cell voltages and temperatures across a battery pack. With 16 channels, it can monitor up to 16 individual cells or a combination of voltage and temperature sensors. The 16-bit resolution provides precise voltage readings, essential for state-of-charge estimation. The averaging filters help reduce noise from the switching converters often present in battery management systems. The device's low power consumption is beneficial for extending battery life in portable applications.
Recommended
Medical Instrumentation
The AD4692BCPZ is well-suited for medical devices such as patient monitors and diagnostic equipment. Its 16-bit resolution and low noise are critical for accurate biopotential measurements like ECG and EEG. The multiple channels allow simultaneous monitoring of several physiological signals. The Easy Drive feature reduces the input loading, enabling direct connection to high-impedance electrodes without additional buffering. The compact LFCSP package is ideal for portable medical devices where space is limited.
Recommended
Data Acquisition Systems
As a general-purpose data acquisition ADC, the AD4692BCPZ can be used in test and measurement equipment, data loggers, and laboratory instruments. Its 16 channels and 1 MSPS throughput allow high-speed capture of multiple analog signals. The SPI interface simplifies connection to microcontrollers and DSPs. The averaging filters can be configured to trade off speed for resolution, making it versatile for various signal types. The device's wide operating temperature range (-40C to +125C) ensures reliable operation in harsh environments.
Recommended
Automotive Test Equipment
In automotive test and measurement, the AD4692BCPZ can monitor multiple sensors in engine control units, battery management, and vehicle dynamics. Its 16-bit resolution and 1 MSPS sampling rate are suitable for capturing fast transients in automotive electrical systems. The device's robustness over -40C to +125C makes it suitable for under-hood applications. The Easy Drive technology reduces the need for external components, saving board space in space-constrained automotive modules.
Recommended
IoT and Smart Sensors
For IoT and smart sensor nodes, the AD4692BCPZ provides high-resolution multi-channel sensing in a compact package. Its low power consumption is critical for battery-powered devices. The 16 channels allow connection of multiple sensors, such as temperature, humidity, and gas sensors, to a single ADC. The SPI interface enables easy integration with low-power microcontrollers. The averaging filters can reduce noise, improving measurement accuracy in noisy environments.
Recommended
Recommended Products Summary
Engineering reference data for AD4692BCPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4692BCPZ-RL7 | AD4692BCPZ-RL | AD4691BCPZ |
|---|---|---|---|---|
| Package | 32-LFCSP (5x5 mm) | 32-LFCSP (5x5 mm) - same | 32-LFCSP (5x5 mm) - same | 32-LFCSP (5x5 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 Bit | 16 Bit | 16 Bit | 16 Bit |
| Number of Channels | 16 | 16 | 16 | 8 |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS |
| Interface | SPI | SPI | SPI | SPI |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Easy Drive | Yes | Yes | Yes | Yes |
Key Differentiators
- 16-channel input capability (vs AD4691BCPZ)
- Easy Drive technology (vs AD7606BSTZ)
- Per-channel averaging filters (vs AD7175-2BRUZ-RL7)
Design Notes
Decouple the AVDD and DVDD pins with 10uF and 0.1uF capacitors placed as close to the pins as possible. Use a low-impedance ground plane to minimize noise. The reference input should be driven by a low-impedance source, and a 10uF capacitor should be placed on the REF pin to filter noise.
For optimal performance, route analog inputs away from digital traces to avoid coupling. Use a solid ground plane under the ADC. The exposed pad (EP) should be soldered to the ground plane for thermal and electrical performance. Keep the SPI lines short and matched to reduce signal integrity issues.
Do not exceed the absolute maximum ratings on any pin. Ensure the analog input voltage stays within the specified range to avoid damage. The averaging filters can be used to reduce noise, but they increase conversion time; balance speed and accuracy according to the application. Always consult the datasheet for the correct timing diagram when interfacing with the SPI port.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
