Analog Devices

AD7190BRUZ - 24-Bit Sigma-Delta ADC with PGA | Analog Devices

Name: AD7190BRUZ
Brand: Analog Devices
Price: 5.9 USD
Availability: InStock

MPN: AD7190BRUZ ✓ Active

In Stock Ships in 1-3 business days

4.7 V to 5.25 V Vdss 24-TSSOP Package

From $5.9 USD / Unit

MOQ: 1 |

Price updated: 2026-08-21

Volume Pricing

Qty	Unit Price	Extended
1	$8.6	$8.60
10	$7.95	$79.50
100	$7.1	$710.00
500	$6.5	$3,250.00
1,000	$5.9	$5,900.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for AD7190BRUZ — 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:

AD7192BRUZ

✅ Drop-In

📦 24-TSSOP

Higher noise, same pinout and package

📋 Reference alternative (not in catalog)

AD7190WBRUZ-RL

✅ Drop-In

📦 24-TSSOP

Automotive grade, same die and package

📋 Reference alternative (not in catalog)

AD7124-4BRUZ

✅ Drop-In

Analog Devices

📦 24-TSSOP

24 Bit · 4 Differential or 7 Single-Ended · Differential, Single-Ended · SPI · 19.2 kSPS · Sigma-Delta · Internal, External · 2.7V ~ 3.6V

✓ In Stock

$6.55 / Unit

View Datasheet →

AD7172-2BRUZ

✅ Drop-In

📦 24-TSSOP

Higher speed (31.25 kSPS), lower power, different register map

📋 Reference alternative (not in catalog)

ℹ️ 1 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.

AD7190BRUZ Maximum Ratings & Electrical Characteristics

Resolution	24 Bit
Number of Channels	2 Differential / 4 Pseudo-Differential
Input Type	Differential / Pseudo-Differential
Data Interface	SPI
Sampling Rate	4.8 kSPS
Architecture	Sigma-Delta
Reference Type	External
Analog Supply Voltage	4.7 V to 5.25 V
Digital Supply Voltage	2.7 V to 5.25 V
Operating Temperature Range	-40°C to +105°C
Package	24-TSSOP
Mounting Type	Surface Mount
RoHS Status	Compliant
PGA Gain	1, 8, 64, 128
RMS Noise	1.5 µV at 4.7 Hz output rate

AD7190BRUZ Pin Configuration

Pin 1	SCLK — Serial clock input for SPI
Pin 2	DIN — Serial data input for SPI
Pin 3	DOUT/RDY — Serial data output / data ready
Pin 4	CS — Chip select (active low)
Pin 5	SYNC — Synchronization input
Pin 6	AVDD — Analog power supply
Pin 7	AVDD — Analog power supply
Pin 8	REFIN1(+) — Positive reference input
Pin 9	REFIN1(-) — Negative reference input
Pin 10	AIN1(+) — Positive analog input
Pin 11	AIN1(-) — Negative analog input
Pin 12	AIN2(+) — Positive analog input
Pin 13	AIN2(-) — Negative analog input
Pin 14	AIN3(+) — Positive analog input
Pin 15	AIN3(-) — Negative analog input
Pin 16	AIN4(+) — Positive analog input
Pin 17	AIN4(-) — Negative analog input
Pin 18	PDR — Power-down reset
Pin 19	DVDD — Digital power supply
Pin 20	DGND — Digital ground
Pin 21	AGND — Analog ground
Pin 22	AGND — Analog ground
Pin 23	MCLK — Master clock input
Pin 24	MCLK — Master clock input

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

AD7190BRUZ is suitable for 6 applications: Weigh Scales, Pressure Measurement, Temperature Measurement, Strain Gauge Transducers, Industrial Process Control, Portable Instrumentation.

⚖️

Weigh Scales

The AD7190BRUZ is ideal for weigh scale applications due to its ultra-low noise and high resolution. With a PGA gain of 128, it can directly interface with load cells, providing accurate weight measurements. The device's 24-bit resolution ensures precise readings, and its low noise performance (1.5 µV RMS) minimizes measurement errors. The on-chip burnout current source helps detect sensor faults, enhancing system reliability. The SPI interface simplifies communication with microcontrollers, making it easy to integrate into weigh scale designs.

Recommended

STM32F446VCT6 · STMicroelectronics ADP3330 (Low dropout regulator for analog supply)

🏭

Pressure Measurement

The AD7190BRUZ is well-suited for pressure measurement systems, such as industrial transmitters and process control. Its programmable gain amplifier allows direct connection to bridge-type pressure sensors, amplifying small differential signals. The device's high resolution and low noise ensure accurate pressure readings, even in noisy industrial environments. The internal clock and SPI interface reduce external component count, simplifying design. The wide operating temperature range (-40°C to +105°C) makes it suitable for harsh industrial conditions.

Recommended

STM32F205VET6 · STMicroelectronics REF192 (Precision voltage reference for ADC)

🌡️

Temperature Measurement

The AD7190BRUZ can be used in temperature measurement applications, such as thermocouple or RTD sensing. Its high resolution and low noise enable precise temperature readings, while the PGA allows amplification of small thermocouple voltages. The device's differential inputs reject common-mode noise, improving measurement accuracy. The SPI interface allows easy configuration of gain and filter settings. The burnout current source can detect open thermocouple connections, enhancing system reliability.

Recommended

STM32L476VGT6 · STMicroelectronics ADT7310 (Digital temperature sensor for comparison)

🔧

Strain Gauge Transducers

The AD7190BRUZ is designed for strain gauge transducer applications, providing high-resolution conversion of small differential signals. With a PGA gain of 128, it can amplify microvolt-level signals from strain gauges, making it ideal for force and torque measurement. The device's low noise performance ensures accurate readings, and its internal clock reduces external component count. The SPI interface simplifies integration with microcontrollers, enabling real-time monitoring and control.

Recommended

STM32F303CCT6 · STMicroelectronics OP1177 (Precision op-amp for signal conditioning)

🏭

Industrial Process Control

The AD7190BRUZ is suitable for industrial process control systems, such as PLCs and data acquisition modules. Its high resolution and low noise ensure accurate measurement of process variables, while the PGA allows direct connection to various sensors. The device's wide operating temperature range and robust design make it reliable in industrial environments. The SPI interface enables easy integration with industrial microcontrollers, and the power-down mode helps reduce power consumption in battery-powered systems.

Recommended

STM32F207VCT6 · STMicroelectronics ADuM1401 (Digital isolator for SPI isolation)

📱

Portable Instrumentation

The AD7190BRUZ is ideal for portable instrumentation, such as handheld multimeters and data loggers, due to its low power consumption and small package. The device operates from a 2.7 V to 5.25 V digital supply, allowing battery operation. Its high resolution and low noise ensure accurate measurements, while the power-down mode extends battery life. The SPI interface simplifies connection to low-power microcontrollers, making it suitable for battery-powered designs.

Recommended

STM32L431RCT6 · STMicroelectronics TPS7A4701 (Low-noise LDO for analog supply)

Recommended Products Summary

STM32F446VCT6 STMicroelectronics Used in: Weigh Scales ADP3330 Low dropout regulator for analog supply Used in: Weigh Scales STM32F205VET6 STMicroelectronics Used in: Pressure Measurement REF192 Precision voltage reference for ADC Used in: Pressure Measurement STM32L476VGT6 STMicroelectronics Used in: Temperature Measurement ADT7310 Digital temperature sensor for comparison Used in: Temperature Measurement STM32F303CCT6 STMicroelectronics Used in: Strain Gauge Transducers OP1177 Precision op-amp for signal conditioning Used in: Strain Gauge Transducers STM32F207VCT6 STMicroelectronics Used in: Industrial Process Control ADuM1401 Digital isolator for SPI isolation Used in: Industrial Process Control STM32L431RCT6 STMicroelectronics Used in: Portable Instrumentation TPS7A4701 Low-noise LDO for analog supply Used in: Portable Instrumentation

What is the resolution of the AD7190BRUZ?

The AD7190BRUZ is a 24-bit sigma-delta ADC. According to the Analog Devices AD7190 datasheet, it provides 24-bit resolution with a maximum output data rate of 4.8 kHz, making it suitable for high-precision measurement applications.

What is the price of AD7190BRUZ?

As of 2026-08-21, the AD7190BRUZ is priced at $8.60 for 1 unit, with volume pricing decreasing to $5.90 at 1000 units. Prices are based on distributor listings from DigiKey and Mouser.

Where can I buy AD7190BRUZ?

The AD7190BRUZ is available from major distributors including DigiKey, Mouser, and Octopart. It is also available directly from Analog Devices. Check current stock and pricing on these platforms.

What is the lead time for AD7190BRUZ?

The lead time for AD7190BRUZ varies by distributor and stock availability. As of 2026-08-21, DigiKey lists it as 'ships today' for in-stock items. For larger quantities, lead times may extend to several weeks.

Is AD7190BRUZ in stock?

As of 2026-08-21, the AD7190BRUZ is in stock at DigiKey and Mouser. Availability can change, so check the distributor websites for real-time inventory.

What is the difference between AD7190BRUZ and AD7192BRUZ?

The AD7190BRUZ and AD7192BRUZ are both 24-bit sigma-delta ADCs from Analog Devices, but the AD7190 has a maximum output data rate of 4.8 kHz, while the AD7192 operates at 4.8 kHz as well. The key difference is that the AD7190 has a lower noise performance, making it more suitable for precision weigh scale applications.

AD7190BRUZ vs AD7172-2BRUZ - which is better for high-speed applications?

For high-speed applications, the AD7172-2BRUZ is better because it supports a maximum output data rate of 31.25 kSPS, whereas the AD7190BRUZ is limited to 4.8 kSPS. However, the AD7190 offers lower noise, making it preferable for ultra-low-noise, low-speed measurements.

When should I choose AD7190BRUZ over AD7192BRUZ?

Choose the AD7190BRUZ when you need the lowest possible noise for precision measurements, such as weigh scales or strain gauge applications. The AD7192BRUZ is a lower-cost option with slightly higher noise, suitable for less demanding applications.

What is the best drop-in replacement for AD7190BRUZ?

The AD7192BRUZ is a drop-in replacement for the AD7190BRUZ, as it shares the same 24-TSSOP package and pinout. However, the AD7192 has slightly higher noise, so verify performance requirements before substituting.

Can AD7192BRUZ replace AD7190BRUZ?

Yes, the AD7192BRUZ can replace the AD7190BRUZ in most applications, as it is pin-compatible and has similar specifications. However, the AD7192 has a higher noise floor, so it may not be suitable for the most demanding precision applications.

Where can I download the AD7190BRUZ datasheet PDF?

The AD7190BRUZ datasheet PDF is available from the Analog Devices website at https://www.analog.com/media/en/technical-documentation/data-sheets/AD7190.pdf. It is also available from distributor websites like DigiKey and Mouser.

Where can I find the AD7190BRUZ pinout?

The AD7190BRUZ pinout is detailed in the datasheet, which is available from Analog Devices. The device is in a 24-lead TSSOP package, and the pin functions are listed in the datasheet's pin configuration section.

Hey Google, what can replace AD7190BRUZ?

The AD7190BRUZ can be replaced by the AD7192BRUZ, which is pin-compatible and has similar specifications. Other alternatives include the AD7124-4BRUZ, which offers four channels and lower power consumption, but may require software changes.

Is AD7190BRUZ the same as AD7192BRUZ?

No, the AD7190BRUZ and AD7192BRUZ are not the same. While they share the same package and pinout, the AD7190 has lower noise and a higher maximum output data rate of 4.8 kHz, whereas the AD7192 has a maximum of 4.8 kHz as well but with higher noise.

What are the key specifications of AD7190BRUZ that engineers should know?

The AD7190BRUZ is a 24-bit sigma-delta ADC with a maximum output data rate of 4.8 kHz, a PGA with gains of 1, 8, 64, and 128, and two differential or four pseudo-differential input channels. It operates from a 4.7 V to 5.25 V analog supply and a 2.7 V to 5.25 V digital supply, and is available in a 24-TSSOP package.

What is the best Analog Devices equivalent for AD7190BRUZ?

The best Analog Devices equivalent for the AD7190BRUZ is the AD7192BRUZ, which is pin-compatible and offers similar performance. For applications requiring higher speed, the AD7172-2BRUZ is a suitable alternative, though it has a different package and pinout.

Engineering reference data for AD7190BRUZ — comparison, design guidance, and compliance information.

Selection Guide

Choose the AD7190BRUZ when you need the lowest noise and highest precision for low-speed measurements, such as weigh scales, pressure sensors, and temperature measurement. If you require a lower-cost option with slightly higher noise, the AD7192BRUZ is a suitable drop-in replacement. For automotive applications, select the AD7190WBRUZ-RL, which is AEC-Q100 qualified. If you need higher data rates or lower power consumption, consider the AD7172-2BRUZ or AD7124-4BRUZ, but be aware of their different register maps and power supply requirements. For non-Analog Devices alternatives, the ADS1256IDBR from Texas Instruments offers similar performance but requires a different package and pinout, so it is not a drop-in replacement.

Comparison with Alternatives

Parameter	This Product	AD7192BRUZ	AD7190WBRUZ-RL	AD7124-4BRUZ	AD7172-2BRUZ
Package	24-TSSOP	24-TSSOP	24-TSSOP	24-TSSOP	24-TSSOP
Brand	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices
Resolution	24 Bit	24 Bit	24 Bit	24 Bit	24 Bit
Max Data Rate	4.8 kSPS	4.8 kSPS	4.8 kSPS	19.2 kSPS	31.25 kSPS
Number of Channels	2 Differential / 4 Pseudo-Differential	2 Differential / 4 Pseudo-Differential	2 Differential / 4 Pseudo-Differential	4 Differential / 8 Pseudo-Differential	2 Differential / 4 Pseudo-Differential
PGA Gain	1, 8, 64, 128	1, 8, 64, 128	1, 8, 64, 128	1, 2, 4, 8, 16, 32, 64, 128	1, 2, 4, 8, 16, 32, 64, 128
RMS Noise	1.5 µV at 4.7 Hz	2.1 µV at 4.7 Hz	1.5 µV at 4.7 Hz	1.5 µV at 1.17 Hz	1.5 µV at 1.17 Hz
Analog Supply Voltage	4.7 V to 5.25 V	4.7 V to 5.25 V	4.7 V to 5.25 V	2.9 V to 3.6 V or 4.7 V to 5.25 V	2.9 V to 3.6 V or 4.7 V to 5.25 V

Key Differentiators

Ultra-low noise performance (vs AD7192BRUZ)
Automotive grade option (vs AD7190WBRUZ-RL)
Lower power consumption (vs AD7124-4BRUZ)

Design Notes

Use separate analog and digital power supplies to minimize noise coupling. Decouple AVDD and DVDD with 10 µF and 0.1 µF capacitors placed close to the pins. A low-noise LDO, such as the ADP3330, is recommended for the analog supply to maintain the ADC's noise performance.

Place the AD7190BRUZ on a ground plane and keep analog and digital grounds separate, connecting them at a single point. Route analog inputs away from digital traces to reduce interference. Use a clean, low-impedance reference voltage source and decouple the REFIN pins with 0.1 µF capacitors.

Ensure the reference voltage is stable and within the specified range. Avoid exceeding the absolute maximum ratings on any pin. For optimal noise performance, use a low-noise reference and keep the input signal within the common-mode range. Also, configure the digital filter correctly to achieve the desired output data rate and noise rejection.