Analog Devices Inc. AD7993BRUZ-0REEL
- Part No.:
- AD7993BRUZ-0REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7993BRUZ-0REEL.pdf
- Description:
- IC ADC 10BIT SAR 16TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
AD7993BRUZ-0REEL from Analog Devices is a 4-channel, 10-bit successive approximation ADC with I²C-compatible interface, 2 µs conversion time, 188 kSPS throughput at 5 V, and operation from 2.7 V to 5.5 V supply. It integrates a 4-channel multiplexer, track-and-hold amplifier, and out-of-range alert function-used in industrial sensor monitoring systems for real-time analog signal digitization.
For engineers reviewing the AD7993BRUZ-0REEL datasheet, AD7993BRUZ-0REEL pinout, AD7993BRUZ-0REEL application, or AD7993BRUZ-0REEL equivalent, this page delivers verified technical context, I²C timing mode support (standard/fast/high-speed), channel-to-channel isolation (−90 dB), shutdown current (1 µA max), and REFIN voltage range (1.2 V to VDD) - all critical for embedded data acquisition design.
Technical Context
The AD7993BRUZ-0REEL implements a successive approximation register (SAR) architecture with integrated 4-channel analog multiplexer and track-and-hold, supporting single-ended inputs up to 11 MHz full-power bandwidth. Its I²C interface supports standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes depending on variant configuration.
It operates in three distinct conversion modes: CONVST-triggered (Mode 1), command-mode (Mode 2), and automatic cycle interval (Mode 3). The ALERT/BUSY pin is software-configurable as either an out-of-range interrupt or busy indicator, and on-chip limit registers (DATALOW/DATAHIGH) enable autonomous threshold monitoring without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for moderate-precision sensor digitization. |
| Conversion Time | 2 µs typ - enables rapid sampling for dynamic signals up to ~11 MHz input bandwidth. |
| Throughput Rate | 188 kSPS typ @ 5 V, 3.4 MHz SCL - supports high-rate data logging in I²C high-speed mode. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with both 3.3 V and 5 V system rails without level-shifting. |
| Shutdown Current | 1 µA max - minimizes quiescent power in battery-powered or duty-cycled measurement nodes. |
| Channel Count | 4 single-ended analog inputs - reduces external multiplexing complexity in multi-sensor systems. |
| Reference Input Range | 1.2 V to VDD - allows flexible reference selection including rail-to-rail or precision external references. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial control, and harsh-environment applications. |
Pinout & Package
AD7993BRUZ-0REEL is housed in a 16-lead TSSOP package (4.4 mm × 5.0 mm, 0.65 mm pitch) with exposed pad for thermal performance. Pin functions are validated per Analog Devices Rev. 0 datasheet Figure 3 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 16 | AGND | Analog ground reference for all internal circuitry; must be low-impedance and separated from digital ground. |
| 5 | VDD | Main power supply input (2.7–5.5 V); powers analog and digital sections. |
| 6 | REFIN | External reference voltage input (1.2 V to VDD); defines full-scale ADC range. |
| 7, 8, 9, 10 | VIN1–VIN4 | Four single-ended analog inputs; each accepts 0 V to REFIN range with 30 pF input capacitance. |
| 11 | AS | Address select logic input - sets one of three I²C addresses (GND/VDD/float) for multi-device bus sharing. |
| 12 | CONVST | Edge-triggered convert start - rising edge powers up device; falling edge initiates conversion after 1 µs setup. |
| 13 | ALERT/BUSY | Configurable open-drain output - signals out-of-range condition or active conversion status. |
| 14 | SDA | I²C bidirectional data line - requires external pull-up; supports standard/fast/high-speed modes. |
| 15 | SCL | I²C clock input - requires external pull-up; timing compliant to I²C spec up to 3.4 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Sequencer operation | Automatically cycles through all four channels in configurable order - eliminates host firmware polling overhead. |
| Out-of-range indicator/alert | Programmable high/low limit registers trigger ALERT pin - enables autonomous fault detection without CPU intervention. |
| I²C interface with pin-selectable addressing | AS pin selects among five unique I²C addresses - allows up to five AD7993BRUZ-0REEL devices on same bus. |
| Automatic shutdown between conversions | Consumes ≤1 µA in shutdown - ideal for low-duty-cycle remote sensing nodes powered by energy harvesting or coin cells. |
| Flexible reference input | REFIN accepts 1.2 V to VDD - supports internal LDO-derived references or precision external sources like REF192. |
Applications
| Industrial Process Monitoring | Automotive Cabin Climate Control |
|---|---|
Use Scenario: Continuous monitoring of temperature, pressure, and humidity sensors across multiple zones in factory automation PLCs. IC Role / Device Role / Timing Role: 4-channel SAR ADC digitizing analog sensor outputs with 10-bit resolution and 2 µs conversion latency. Use Value: Enables synchronized multi-sensor sampling within tight control loop deadlines while maintaining <1 µA standby current during idle intervals. |
Use Scenario: Real-time acquisition of cabin air temperature, evaporator outlet, and ambient sensor voltages in HVAC control modules. IC Role / Device Role / Timing Role: I²C-connected ADC providing 188 kSPS throughput in high-speed mode for responsive thermal feedback. Use Value: Reduces BOM count by eliminating external multiplexer and level-shifters, while −40°C to +125°C rating ensures reliability under hood and cabin extremes. |
| Smart Energy Metering Subsystem | Medical Patient Vital Sign Interface |
Use Scenario: Isolated front-end acquisition of current transformer and shunt voltage signals in Class 0.5 electricity meters. IC Role / Device Role / Timing Role: Low-power ADC with programmable alert thresholds detecting overcurrent or phase imbalance events. Use Value: On-chip DATALOW/DATAHIGH registers generate hardware interrupts for anomaly response - bypassing slow firmware polling and improving reaction time. |
Use Scenario: Digitizing ECG lead voltages, skin temperature, and respiration belt outputs in portable patient monitors. IC Role / Device Role / Timing Role: 10-bit ADC with 11 MHz full-power bandwidth capturing bio-signals with minimal aliasing. Use Value: Channel-to-channel isolation >90 dB prevents crosstalk between differential ECG leads, preserving diagnostic signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, I²C-compatible ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7994BRUZ-0REEL | 12-bit resolution, higher SINAD (70.5 dB min), identical pinout and I²C interface - requires no PCB change. | Used where higher dynamic range is needed (e.g., precision thermocouple or strain gauge measurement). | Select AD7994BRUZ-0REEL when ≥12-bit ENOB and SNR >71 dB are required; shares same layout and firmware driver stack. |
| ADS7828IPW | 8-channel, 12-bit, I²C interface but only supports standard/fast mode (max 400 kHz), no high-speed mode or ALERT pin. | Suitable for lower-throughput, higher-channel-count applications where autonomous alerting is not required. | Choose ADS7828IPW when expanding to 8 sensors is prioritized over throughput or interrupt-driven operation. |
Compared with AD7993BRUZ-0REEL, AD7994BRUZ-0REEL offers 2-bit higher resolution and 9.5 dB better SINAD at cost of slightly higher power in active mode, while ADS7828IPW trades off speed and alert capability for double the channel count - making each suitable for distinct trade-off priorities in sensor node architecture.
Availability
AD7993BRUZ-0REEL is available at Aetrix Electronics and suitable for industrial process monitoring, automotive cabin climate control, and smart energy metering requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AD7993BRUZ-0REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7993BRUZ-0REEL belongs to Analog Devices' I²C-compatible precision ADC product family, designed specifically for space-constrained, low-power embedded systems needing multi-channel analog sensing with minimal firmware overhead and robust bus integration.
FAQ
What is the maximum I²C clock frequency supported by AD7993BRUZ-0REEL?
The AD7993BRUZ-0REEL supports I²C high-speed mode up to 3.4 MHz when operating in AD7993-1 configuration (AS pin tied to VDD or GND per Table 6). In AD7993-0 configuration, it is limited to 400 kHz (fast mode). This distinction is fixed per part variant and cannot be changed in firmware - verify AS pin connection and ordering code (-0 vs -1) before system integration. The AD7993BRUZ-0REEL datasheet specifies timing parameters for all three modes in Table 3.
Does AD7993BRUZ-0REEL require an external reference voltage?
Yes, AD7993BRUZ-0REEL requires an external reference applied to the REFIN pin. The reference voltage must be between 1.2 V and VDD, and is used to define the full-scale input range (0 V to REFIN) for all four analog inputs. A 0.1 µF and 1 µF capacitor pair is recommended between REFIN and AGND for noise suppression. No internal reference is provided - the AD7993BRUZ-0REEL relies entirely on this external source for accuracy and stability.
How does the ALERT/BUSY pin function on AD7993BRUZ-0REEL?
The ALERT/BUSY pin on AD7993BRUZ-0REEL is software-configurable via the Configuration Register. When set as ALERT, it asserts low (open-drain) if any channel's conversion result exceeds programmed DATAHIGH or falls below DATALOW limits. When set as BUSY, it goes low during conversion and returns high upon completion. Both modes use the same physical pin and require an external pull-up resistor. This dual functionality is documented in the Functional Block Diagram (Figure 1) and Register Map section of the AD7993BRUZ-0REEL datasheet.
Can AD7993BRUZ-0REEL operate from a 3.3 V supply?
Yes, AD7993BRUZ-0REEL is fully specified for operation from 2.7 V to 5.5 V, including 3.3 V nominal supplies. All key parameters - including 2 µs conversion time, 10-bit resolution, 1 µA shutdown current, and I²C timing compliance - are guaranteed across this range. Power consumption scales linearly: IDD in active mode is 0.7 mA typ at 3.3 V / 3.4 MHz SCL (Mode 2), per Table 1. Logic levels remain compatible (VINH = 0.7×VDD, VINL = 0.3×VDD), eliminating need for level shifters in 3.3 V systems.
What is the purpose of the AS pin on AD7993BRUZ-0REEL?
The AS (Address Select) pin on AD7993BRUZ-0REEL determines the device's 7-bit I²C slave address by selecting among three configurations: GND → 0x41 (AD7993-0), VDD → 0x42 (AD7993-0) or 0x43/0x44 (AD7993-1), and floating → 0x40. This enables up to five AD7993BRUZ-0REEL devices on a single I²C bus without address conflict. The AS pin state is sampled at power-up and latched - changes during operation have no effect. Its function and resulting addresses are defined in Table 6 of the AD7993BRUZ-0REEL datasheet.
AD7993BRUZ-0REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 188k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- I2C
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7993BRUZ-0REEL FAQ
1.How can I place an order for AD7993BRUZ-0REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7993BRUZ-0REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7993BRUZ-0REEL reliable?
The price and inventory of AD7993BRUZ-0REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7993BRUZ-0REEL is usually 5 days.
3.What payment methods are accepted for AD7993BRUZ-0REEL?
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Once your AD7993BRUZ-0REEL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7993BRUZ-0REEL?
For technical support, including AD7993BRUZ-0REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7993BRUZ-0REEL requirements.
6.How does Aetrix verify that AD7993BRUZ-0REEL is sourced from the original manufacturer or authorized distributors?
All AD7993BRUZ-0REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7993BRUZ-0REEL meets industry standards.
7.What is the process for return or replacement of AD7993BRUZ-0REEL?
All AD7993BRUZ-0REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7993BRUZ-0REEL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7993BRUZ-0REEL part is unused and in its original packaging.
Return procedure for AD7993BRUZ-0REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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