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Analog Devices Inc. AD7993BRUZ-1
- Part No.:
- AD7993BRUZ-1
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7993BRUZ-1.pdf
- Description:
- IC ADC 10BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:161
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Product details
Overview
AD7993BRUZ-1 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 over −40°C to +125°C. It integrates a 4-channel multiplexer, track-and-hold amplifier, and on-chip limit registers for out-of-range monitoring in industrial sensor signal conditioning systems.
For engineers reviewing the AD7993BRUZ-1 datasheet, AD7993BRUZ-1 pinout, AD7993BRUZ-1 application, or AD7993BRUZ-1 equivalent, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative parts with documented functional differences, and supply-ready procurement support - all grounded in the official AD7993 Rev. 0 datasheet and Analog Devices' product documentation.
Technical Context
The AD7993BRUZ-1 implements a successive approximation register (SAR) architecture with integrated 4:1 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 - enabled only in the "-1" variant, which AD7993BRUZ-1 is.
It operates in three configurable modes: CONVST-triggered (Mode 1), command-mode conversions via I²C writes (Mode 2), and automatic interval mode (Mode 3). An open-drain ALERT/BUSY pin provides programmable out-of-range indication or busy status, and the AS pin enables selection among five I²C addresses (0x41–0x44, 0x40 float).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit SAR ADC: delivers 1024 discrete output codes with guaranteed no missing codes. |
| Conversion Time | 2 µs typical: enables high-speed sampling without external timing control overhead. |
| Throughput Rate | 188 kSPS at 5 V with 3.4 MHz SCL: supports real-time monitoring of fast transients in motor control or power quality systems. |
| Analog Input Range | 0 V to REFIN (1.2 V to VDD): allows flexible scaling with external reference, e.g., 2.5 V for ±1.25 V input range with external level shift. |
| Supply Voltage | 2.7 V to 5.5 V: compatible with both 3.3 V and 5 V microcontroller systems without level-shifting. |
| Power Consumption | 0.7–1.4 mA typical active current at 3.3–5.5 V: enables low-power battery-operated data loggers with periodic wake-up. |
| Operating Temperature | −40°C to +125°C (B grade): qualified for under-hood automotive, industrial PLC, and harsh-environment sensing. |
Pinout & Package
AD7993BRUZ-1 is housed in a 16-lead TSSOP package (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 16 | AGND | Analog ground reference for all internal circuitry; must be connected to clean analog ground plane to minimize noise coupling into ADC core. |
| 5 | VDD | Main power supply (2.7–5.5 V); requires local 0.1 µF + 10 µF decoupling near pin to suppress switching noise. |
| 6 | REFIN | External reference input (1.2 V to VDD); sets full-scale range; requires 0.1 µF + 1 µF bypass to AGND per datasheet layout guidance. |
| 7, 8, 9, 10 | VIN1–VIN4 | Four single-ended analog inputs; each accepts 0 V to REFIN; channel-to-channel isolation >90 dB prevents crosstalk in multi-sensor reads. |
| 11 | AS | Address select logic input: GND/VDD/float selects one of five I²C addresses (0x40–0x44), enabling up to five devices on same bus. |
| 12 | CONVST | Edge-triggered convert start: rising edge powers up device; falling edge initiates conversion - used for precise timing synchronization. |
| 13 | ALERT/BUSY | Configurable open-drain output: alerts host MCU when conversion result exceeds user-programmed high/low limits, or signals BUSY during conversion. |
| 14 | SDA | I²C bidirectional data line: requires external pull-up resistor (typically 2.2–10 kΩ); supports standard/fast/high-speed modes. |
| 15 | SCL | I²C clock input: requires external pull-up; timing validated up to 3.4 MHz for high-throughput burst reads. |
Key Features
| Feature | Design Value |
|---|---|
| 2 µs conversion time with 188 kSPS throughput | Enables sub-5.3 µs total cycle time per channel in 4-channel sequence, suitable for closed-loop feedback in servo drives. |
| I²C interface with pin-selectable addressing | Five unique I²C addresses via AS pin allow stacking multiple AD7993BRUZ-1 units on one bus - ideal for modular sensor nodes. |
| Programmable out-of-range alert with hysteresis | On-chip DATAHIGH/DATALOW and HYSTERESIS registers eliminate need for external comparators or firmware polling in alarm-triggered systems. |
| Three operational modes (CONVST, command, auto-cycle) | Supports deterministic timing (CONVST), event-driven sampling (command), or autonomous periodic acquisition (auto-cycle) - adaptable to diverse system architectures. |
| 1 µA max shutdown current | Reduces quiescent power to <3.3 µW at 3.3 V, extending battery life in wireless sensor endpoints with infrequent measurement intervals. |
Applications
| Industrial Process Monitoring | Automotive Battery Management |
|---|---|
|
Use Scenario: Continuous voltage/current/temperature monitoring across 4 sensors in a PLC analog input module. IC Role / Device Role / Timing Role: 4-channel SAR ADC performing synchronized single-ended sampling with I²C readout every 10 ms. Use Value: 10-bit resolution and −40°C to +125°C rating ensure accurate, reliable readings in factory-floor cabinets with wide thermal swings. |
Use Scenario: Cell voltage and temperature sampling in 12S Li-ion battery packs for EV auxiliary systems. IC Role / Device Role / Timing Role: ADC acquiring four cell voltages sequentially via internal MUX, with ALERT flag triggering immediate fault response. Use Value: Out-of-range detection with programmable hysteresis avoids false alarms during transient load steps while maintaining safety-critical responsiveness. |
| Smart Building Environmental Sensors | Motor Drive Current Feedback |
|
Use Scenario: Multi-parameter air quality node measuring CO₂, humidity, temperature, and VOC levels. IC Role / Device Role / Timing Role: Low-power ADC operating in automatic cycle interval mode, waking every 2 s to sample all four analog channels. Use Value: 1 µA shutdown current and 2.7 V minimum supply enable direct operation from coin-cell or energy-harvesting sources. |
Use Scenario: Real-time phase current sensing in 3-phase inverter drives using shunt resistors. IC Role / Device Role / Timing Role: ADC triggered by CONVST pulse aligned to PWM dead-time, capturing current at precise zero-crossing points. Use Value: 2 µs conversion time and 11 MHz full-power bandwidth preserve fidelity of fast-rising current waveforms during switching transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7994BRUZ-1 | 12-bit resolution (vs. 10-bit), higher SINAD (70.5 dB vs. 61 dB), identical pinout, package, and I²C interface. | Required where higher dynamic range is critical - e.g., precision thermocouple or strain gauge measurements with low-level signals. | Select AD7994BRUZ-1 when 12-bit accuracy and improved SNR justify cost premium; AD7993BRUZ-1 remains optimal for cost-sensitive 10-bit applications. |
| ADS1114IDGSR | 16-bit delta-sigma ADC, single-channel, internal reference, 860 SPS max, different I²C address (0x48), 10-lead X2QFN package. | Not a drop-in replacement: lacks multi-channel MUX, lower speed, no ALERT pin, and incompatible pin count/layout. | Consider ADS1114IDGSR only for ultra-high-resolution single-input applications where throughput and channel count are secondary. |
Compared with AD7994BRUZ-1, AD7993BRUZ-1 trades resolution and SNR for lower cost and reduced digital filtering overhead; compared with ADS1114IDGSR, it offers true 4-channel simultaneous-read capability, faster throughput, and hardware alerting - making it superior for real-time multi-sensor embedded control.
Availability
AD7993BRUZ-1 is available at Aetrix Electronics and suitable for industrial process monitoring, automotive battery management, smart building environmental sensing, and motor drive current feedback requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7993BRUZ-1 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.
The AD7993/AD7994 family was designed specifically for space-constrained, low-power, multi-sensor applications requiring I²C connectivity, robust operation across −40°C to +125°C, and integrated alerting - targeting industrial IoT edge nodes and automotive subsystems.
FAQ
What is the maximum I²C clock frequency supported by AD7993BRUZ-1?
The AD7993BRUZ-1 supports high-speed I²C mode up to 3.4 MHz (with ≤100 pF bus capacitance) - a key differentiator from the "-0" variant limited to 400 kHz. This enables 188 kSPS throughput at 5 V, allowing rapid sequential reads across all four channels without bottlenecking the serial interface. The AD7993BRUZ-1 datasheet specifies tHIGH ≥60 ns and tLOW ≥160 ns under these conditions.
Does AD7993BRUZ-1 require an external reference, and what voltage range is acceptable?
Yes, AD7993BRUZ-1 requires an external reference applied to the REFIN pin. The valid range is 1.2 V to VDD (2.7–5.5 V), enabling flexible scaling - for example, a 2.5 V reference yields 2.44 mV/LSB step size. The device draws ≤1 µA DC leakage from REFIN, and Analog Devices recommends 0.1 µF + 1 µF ceramic capacitors from REFIN to AGND for stability and noise rejection.
How does the ALERT/BUSY pin function on AD7993BRUZ-1, and can it be reconfigured?
The ALERT/BUSY pin on AD7993BRUZ-1 is software-configurable via the Configuration Register. When set as ALERT, it asserts low (open-drain) if any channel's conversion result exceeds user-defined DATAHIGH or DATALOW limits - useful for hardware interrupt-driven fault response. As BUSY, it goes low during conversion and returns high upon completion. Hysteresis registers prevent chatter during threshold crossings.
Is AD7993BRUZ-1 pin-compatible with AD7994BRUZ-1?
Yes, AD7993BRUZ-1 and AD7994BRUZ-1 share identical 16-lead TSSOP packaging, pinout, power requirements, I²C interface behavior, and register map - differing only in resolution (10-bit vs. 12-bit), INL/DNL specs, and dynamic performance (SINAD, THD). This allows direct PCB-level substitution where 10-bit accuracy suffices and cost optimization is prioritized.
What are the three operational modes of AD7993BRUZ-1, and when should each be used?
AD7993BRUZ-1 supports Mode 1 (CONVST-triggered), Mode 2 (I²C command), and Mode 3 (automatic cycle interval). Use Mode 1 for precise timing alignment with external events (e.g., PWM edges); Mode 2 for on-demand sampling initiated by host processor; Mode 3 for autonomous periodic acquisition without host intervention - ideal for low-power sensor nodes with fixed update rates.
AD7993BRUZ-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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-1 FAQ
1.How can I place an order for AD7993BRUZ-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7993BRUZ-1 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-1 reliable?
The price and inventory of AD7993BRUZ-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7993BRUZ-1 is usually 5 days.
3.What payment methods are accepted for AD7993BRUZ-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7993BRUZ-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7993BRUZ-1?
AD7993BRUZ-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7993BRUZ-1 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-1?
For technical support, including AD7993BRUZ-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7993BRUZ-1 requirements.
6.How does Aetrix verify that AD7993BRUZ-1 is sourced from the original manufacturer or authorized distributors?
All AD7993BRUZ-1 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-1 meets industry standards.
7.What is the process for return or replacement of AD7993BRUZ-1?
All AD7993BRUZ-1 units undergo pre-shipment inspection (PSI). If there is an issue with AD7993BRUZ-1, 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-1 part is unused and in its original packaging.
Return procedure for AD7993BRUZ-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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