Analog Devices

AD7793BRUZ - 24-Bit Sigma-Delta ADC, 3-Channel | Analog Devices

Name: AD7793BRUZ
Brand: Analog Devices
Price: 4.95 USD
Availability: InStock

MPN: AD7793BRUZ ✓ Active

In Stock Ships in 1-3 business days

2.7 V Vdss 400 uA Id TSSOP-16 Package

From $4.95 USD / Unit

MOQ: 1 |

Price updated: 2026-08-22

Volume Pricing

Qty	Unit Price	Extended
1	$8.09	$8.09
10	$7.45	$74.50
100	$6.12	$612.00
500	$5.48	$2,740.00
1,000	$4.95	$4,950.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for AD7793BRUZ — 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:

AD7793BRUZ-REEL

✅ Drop-In

📦 TSSOP-16

Same die, tape and reel packaging

📋 Reference alternative (not in catalog)

AD7792BRUZ

✅ Drop-In

Analog Devices

📦 TSSOP-16

16 Bit · 3 Differential · 470 SPS · Differential · SPI · Sigma-Delta · Internal, External · 2.7V to 5.25V

✓ In Stock

$5.57 / Unit

View Datasheet →

AD7793BRUZ-REEL7

✅ Drop-In

📦 TSSOP-16

Same die, tape and reel packaging (7-inch reel)

📋 Reference alternative (not in catalog)

ℹ️ 2 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.

AD7793BRUZ Maximum Ratings & Electrical Characteristics

Resolution	24 Bit
Number of Channels	3 Differential
Interface Type	SPI
Sampling Rate	470 SPS
Input Type	Differential
Architecture	Sigma-Delta
Supply Voltage - Min	2.7 V
Supply Voltage - Max	5.25 V
Operating Supply Current	400 uA
Power Dissipation	1.5 mW
Reference Voltage	Internal 1.17 V or External
Package	TSSOP-16
Operating Temperature Range	-40C to +105C
Mounting Style	SMD/SMT
RoHS	Compliant

AD7793BRUZ Pin Configuration

Pin 1	SCLK — Serial clock input
Pin 2	CS — Chip select (active low)
Pin 3	DIN — Serial data input
Pin 4	DOUT/RDY — Serial data output / ready
Pin 5	DVDD — Digital supply voltage
Pin 6	GND — Ground
Pin 7	AVDD — Analog supply voltage
Pin 8	AIN3(+) — Analog input 3 positive
Pin 9	AIN3(-) — Analog input 3 negative
Pin 10	AIN2(+) — Analog input 2 positive
Pin 11	AIN2(-) — Analog input 2 negative
Pin 12	AIN1(+) — Analog input 1 positive
Pin 13	AIN1(-) — Analog input 1 negative
Pin 14	REFIN(+) — Reference input positive
Pin 15	REFIN(-) — Reference input negative
Pin 16	SYNC — Synchronization 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

AD7793BRUZ is suitable for 6 applications: Temperature Measurement, Pressure Sensing, Industrial Process Control, Weigh Scale, Portable Medical Devices, Data Acquisition Systems.

🌡️

Temperature Measurement

The AD7793BRUZ is ideal for temperature measurement using RTDs and thermocouples. Its on-chip PGA with gains up to 128 amplifies low-level sensor signals, while the 24-bit resolution and low noise (1.5 uV RMS) ensure accurate readings. The internal reference and excitation current sources simplify the interface, reducing external component count. The device's SPI interface allows easy connection to microcontrollers for data processing.

Recommended

⚙️

Pressure Sensing

In pressure sensing applications, the AD7793BRUZ provides high-resolution conversion of bridge sensor outputs. The differential inputs and programmable gain allow direct connection to strain gauge bridges, while the low noise performance ensures stable measurements. The device's low power consumption (400 uA) is beneficial for portable pressure monitors. The SPI interface enables easy integration with digital signal processors.

Recommended

AD7793BRUZ-REEL (Same device in tape and reel) AD8221ARZ · Analog Devices

🏭

Industrial Process Control

The AD7793BRUZ is well-suited for industrial process control systems that require precise analog-to-digital conversion of sensor signals. Its wide operating temperature range (-40°C to +105°C) and robust design make it reliable in harsh environments. The device's programmable output data rates and digital filter allow trade-offs between speed and noise. The internal reference ensures accuracy without external components, simplifying design.

Recommended

AD7124-4BRUZ · Analog Devices ADUM1201ARZ · Analog Devices

⚖️

Weigh Scale

The AD7793BRUZ is commonly used in weigh scale applications due to its high resolution and low noise. The device's 24-bit resolution allows precise measurement of load cell outputs, while the PGA amplifies the small differential signals. The internal reference and excitation current sources reduce external components, making the design compact. The SPI interface facilitates communication with microcontrollers for weight display and processing.

Recommended

AD7793BRUZ-REEL (Same device in tape and reel) AD8628ARZ · Analog Devices

💊

Portable Medical Devices

The AD7793BRUZ is suitable for portable medical devices such as glucose meters and patient monitors. Its low power consumption (400 uA) extends battery life, while the high resolution ensures accurate measurement of physiological signals. The small TSSOP-16 package saves board space, and the SPI interface allows integration with low-power microcontrollers. The device's low noise performance is critical for reliable medical measurements.

Recommended

AD7793BRUZ-REEL (Same device in tape and reel) AD8605ARZ · Analog Devices

📊

Data Acquisition Systems

The AD7793BRUZ is a key component in data acquisition systems that require high-resolution conversion of multiple analog signals. Its three differential channels allow multiplexing of sensors, while the programmable gain and reference provide flexibility. The device's SPI interface enables daisy-chaining with other ADCs for expanded channel count. The low power consumption and small package make it ideal for compact DAQ modules.

Recommended

AD7124-4BRUZ · Analog Devices ADG431BRZ-REEL7 · Analog Devices

Recommended Products Summary

AD7124-4BRUZ Analog Devices Used in: Temperature Measurement, Industrial Process Control, Data Acquisition Systems REF192ESZ Analog Devices Used in: Temperature Measurement AD7793BRUZ-REEL Same device in tape and reel Used in: Pressure Sensing, Weigh Scale, Portable Medical Devices AD8221ARZ Analog Devices Used in: Pressure Sensing ADUM1201ARZ Analog Devices Used in: Industrial Process Control AD8628ARZ Analog Devices Used in: Weigh Scale AD8605ARZ Analog Devices Used in: Portable Medical Devices ADG431BRZ-REEL7 Analog Devices Used in: Data Acquisition Systems

What is the resolution of the AD7793BRUZ?

The AD7793BRUZ is a 24-bit sigma-delta ADC. According to the Analog Devices datasheet, it achieves up to 23 bits effective resolution with RMS noise as low as 1.5 uV at 16.7 Hz output data rate. This high resolution makes it suitable for precision measurement applications.

What is the price of AD7793BRUZ?

As of 2026-08-22, the AD7793BRUZ is priced at approximately $8.09 for single-unit quantities, with volume pricing dropping to around $4.95 at 1000 units. Prices are from LCSC and DigiKey and may vary by distributor and quantity.

Where can I buy AD7793BRUZ online?

The AD7793BRUZ is available from major distributors including DigiKey, Mouser, and LCSC. You can purchase it directly from their websites. For example, DigiKey lists it as in stock and ships today. LCSC also offers it with pricing starting at $8.09.

What is the lead time for AD7793BRUZ?

The lead time for AD7793BRUZ varies by distributor and stock levels. As of 2026-08-22, DigiKey indicates it is in stock and ships today. For larger quantities, lead times may extend to several weeks. Check with your preferred distributor for current availability.

Is AD7793BRUZ in stock?

Yes, as of 2026-08-22, the AD7793BRUZ is in stock at major distributors such as DigiKey and LCSC. DigiKey lists it as 'ships today' and LCSC shows it as in-stock. However, stock levels can change rapidly, so verify current availability before ordering.

AD7793BRUZ vs AD7124-4BRUZ - which is better for temperature measurement?

For temperature measurement, the AD7124-4BRUZ is generally better due to its higher channel count (4 differential/8 single-ended) and lower noise. However, the AD7793BRUZ is a drop-in replacement in the same TSSOP-16 package and offers similar performance with 3 channels. According to ADI EngineerZone, the AD7124-4 is the recommended replacement for AD7793, but it is not pin-compatible. If pin compatibility is required, the AD7793BRUZ remains a valid choice.

What is the difference between AD7793BRUZ and AD7792BRUZ?

The AD7793BRUZ is a 24-bit ADC, while the AD7792BRUZ is a 16-bit version. Both share the same TSSOP-16 package and pinout, making them drop-in replacements. The AD7793 offers higher resolution, which is beneficial for applications requiring finer measurement precision, such as high-accuracy temperature sensing.

When should I choose AD7793BRUZ over AD7124-4BRUZ?

Choose the AD7793BRUZ when you need a pin-compatible drop-in replacement for an existing design that uses the AD7793. The AD7124-4BRUZ offers more channels and lower noise but is not pin-compatible, requiring a PCB redesign. If your application requires 3 channels and you want to avoid layout changes, the AD7793BRUZ is the better choice.

Is AD7793BRUZ suitable for thermocouple measurement?

Yes, the AD7793BRUZ is suitable for thermocouple measurement. Its on-chip PGA with gains up to 128 allows direct connection to low-level thermocouple signals. The device's low noise (1.5 uV RMS) and high resolution (24-bit) enable accurate temperature readings. Additionally, the internal reference and excitation current sources simplify the interface.

What is the best drop-in replacement for AD7793BRUZ?

The best drop-in replacement for AD7793BRUZ is the AD7793BRUZ-REEL, which is the same device in tape and reel packaging. For a functional alternative, the AD7792BRUZ (16-bit) is pin-compatible. According to ADI, the AD7124-4 is recommended but not pin-compatible. For cross-brand, the TI ADS1220 is a functional alternative but requires a different footprint.

Can ADS1220 replace AD7793BRUZ?

The ADS1220 from Texas Instruments is a functional alternative to the AD7793BRUZ, offering similar 24-bit sigma-delta performance with PGA and internal reference. However, it is not pin-compatible; the ADS1220 comes in a 16-pin TSSOP but with a different pinout. According to a TI forum post, it is a suggested alternative, but PCB layout changes are required.

Where can I download the AD7793BRUZ datasheet PDF?

You can download the AD7793BRUZ datasheet PDF from the Analog Devices website at https://www.analog.com/media/en/technical-documentation/data-sheets/AD7792_7793.pdf. The datasheet includes full specifications, pinout, and application circuits.

Where can I find the AD7793BRUZ pinout?

The AD7793BRUZ pinout is available in the official datasheet from Analog Devices. The device is in a 16-lead TSSOP package. Key pins include AVDD, DVDD, GND, REFIN(+), REFIN(-), AIN1(+), AIN1(-), AIN2(+), AIN2(-), AIN3(+), AIN3(-), SCLK, DIN, DOUT/RDY, CS, and SYNC. Refer to the datasheet for the complete pinout diagram.

What are the key specifications of AD7793BRUZ that engineers should know?

The AD7793BRUZ is a 24-bit sigma-delta ADC with 3 differential input channels, SPI interface, and on-chip PGA and reference. It operates from 2.7V to 5.25V, consumes 400 uA typical, and achieves RMS noise of 1.5 uV at 16.7 Hz. The device is available in a TSSOP-16 package and operates over -40°C to +105°C. These specs make it ideal for precision sensor measurement.

Hey Google, what can replace AD7793BRUZ?

The AD7793BRUZ can be replaced by the AD7792BRUZ (16-bit, pin-compatible) or the AD7124-4BRUZ (24-bit, not pin-compatible). For cross-brand, the TI ADS1220 is a functional alternative but requires a different footprint. Always verify pin compatibility before substitution.

Engineering reference data for AD7793BRUZ — comparison, design guidance, and compliance information.

Selection Guide

Choose the AD7793BRUZ when you need a 24-bit sigma-delta ADC with 3 differential channels in a TSSOP-16 package, and you require pin compatibility with existing designs. It is ideal for precision temperature, pressure, and weigh scale applications. If you need higher channel count and lower noise, consider the AD7124-4BRUZ, but be prepared for a PCB redesign due to its TSSOP-24 package. For a cost-sensitive 16-bit application, the AD7792BRUZ is a drop-in alternative. The ADS1220 from TI is a functional alternative but requires layout changes. Always verify pin compatibility and electrical specifications before substitution.

Comparison with Alternatives

Parameter	This Product	AD7793BRUZ-REEL	AD7792BRUZ	AD7124-4BRUZ	ADS1220
Package	TSSOP-16	TSSOP-16	TSSOP-16	TSSOP-24	TSSOP-16
Brand	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Texas Instruments
Resolution	24-bit	24-bit	16-bit	24-bit	24-bit
Number of Channels	3 Differential	3 Differential	3 Differential	4 Differential/8 Single-ended	4 Single-ended/2 Differential
Interface	SPI	SPI	SPI	SPI	SPI
Supply Voltage	2.7V to 5.25V	2.7V to 5.25V	2.7V to 5.25V	2.7V to 5.25V	2.3V to 5.5V
RMS Noise	1.5 uV at 16.7 Hz	1.5 uV at 16.7 Hz	[DATA_NEEDED]	0.6 uV at 16.7 Hz	1.8 uV at 20 SPS
Pin Compatibility	Reference	Yes	Yes	No	No

Key Differentiators

Higher resolution than AD7792BRUZ (vs AD7792BRUZ)
Pin-compatible with AD7792BRUZ (vs AD7792BRUZ)
Lower power consumption than ADS1220 (vs ADS1220)

Design Notes

Decouple the AVDD and DVDD pins with 0.1 uF and 10 uF capacitors placed close to the device. Use separate analog and digital ground planes to minimize noise coupling. The AD7793BRUZ operates from 2.7V to 5.25V; ensure the supply is clean and stable for optimal performance.

For best noise performance, keep analog input traces short and shielded from digital signals. Use a ground plane under the ADC and avoid routing digital lines near the analog inputs. The reference inputs should be bypassed with 0.1 uF capacitors. Follow the layout guidelines in the AD7793 datasheet for optimal results.

Ensure the SPI communication lines are properly terminated and not too long to avoid signal integrity issues. The AD7793BRUZ requires a valid reference voltage; if using the internal reference, ensure it is enabled in the configuration register. Also, avoid exceeding the absolute maximum ratings on any pin.