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Analog Devices Inc. AD7995ARJZ-0RL
- Part No.:
- AD7995ARJZ-0RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8
- Datasheet:
-
AD7995ARJZ-0RL.pdf
- Description:
- IC ADC 10BIT SAR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,432
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Product details
Overview
AD7995ARJZ-0RL from Analog Devices is a 10-bit, 4-channel successive approximation ADC with I²C-compatible serial interface in an 8-lead SOT-23 package. It operates from 2.7 V to 5.5 V, achieves 1 µs conversion time, supports −40°C to +125°C temperature range, and features sequencer operation for automated channel scanning-used in battery-powered system monitoring and medical instrument data acquisition.
For engineers reviewing the AD7995ARJZ-0RL datasheet, AD7995ARJZ-0RL pinout, AD7995ARJZ-0RL application, or AD7995ARJZ-0RL equivalent, key selection considerations include its 10-bit resolution, dual I²C address support (0x48/0x49), 4 analog input channels with optional external reference on VIN3/VREF, low-power shutdown mode (1 µA max), and automotive-qualified operation.
Technical Context
The AD7995ARJZ-0RL implements a SAR architecture with integrated track-and-hold amplifier enabling up to 14 MHz full-power bandwidth. Its I²C interface supports standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes, with clock stretching enabled above 1.7 MHz.
It uses a multiplexer to sequentially sample four single-ended analog inputs (VIN0–VIN2 plus VIN3/VREF), where VIN3/VREF serves either as fourth input or external reference source. Conversion is initiated per I²C read command, and automatic shutdown minimizes power between conversions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - delivers 1024 distinct output codes with guaranteed no missing codes. |
| Conversion Time | 1 µs typical - enables sampling rates up to ~95 kSPS at 3.4 MHz I²C clock with clock stretching. |
| Analog Input Channels | 4 single-ended - VIN0, VIN1, VIN2, and VIN3/VREF configurable as input or reference. |
| I²C Address Options | 0x48 or 0x49 - allows two AD7995ARJZ-0RL devices on same bus without address conflict. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with common logic rails including 3.3 V and 5 V systems. |
| Operating Temperature | −40°C to +125°C - qualified for automotive and industrial environments. |
| Shutdown Current | 1 µA maximum - reduces system power during idle periods without external control circuitry. |
Pinout & Package
AD7995ARJZ-0RL is housed in an 8-lead SOT-23 package (JEDEC MO-178AA), measuring 2.9 mm × 1.6 mm × 1.1 mm, with gull-wing leads and exposed pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SCL) | Digital Input | Serial clock line; requires external pull-up; supports standard/fast/high-speed I²C timing. |
| 2 (SDA) | Digital I/O (open-drain) | Bidirectional data line; requires external pull-up; handles command writes and conversion result reads. |
| 3 (VIN0) | Analog Input | First single-ended analog input; 0 V to VREF range; 34 pF acquisition-phase capacitance. |
| 4 (VIN1) | Analog Input | Second single-ended analog input; identical electrical specs to VIN0. |
| 5 (VIN2) | Analog Input | Third single-ended analog input; identical electrical specs to VIN0. |
| 6 (VIN3/VREF) | Configurable Terminal | Fourth analog input OR external reference input (1.2 V to VDD); 5 pF acquisition capacitance. |
| 7 (GND) | Analog Ground | Primary AGND reference for all analog circuitry; must be star-connected to minimize noise coupling. |
| 8 (VDD) | Power Supply | Single 2.7 V–5.5 V supply powering both analog and digital sections; decoupling required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel analog multiplexing | Enables autonomous scanning of up to four sensors without host MCU intervention via sequencer mode. |
| I²C interface with dual addressing | Supports two devices on one bus using hardware-selectable addresses (0x48/0x49), simplifying multi-sensor designs. |
| Reference flexibility | VIN3/VREF accepts external reference (1.2 V–VDD) or defaults to VDD, allowing dynamic input range scaling. |
| Low-power shutdown | Enters sub-µA state automatically between conversions, eliminating need for explicit power-control GPIO. |
| Automotive qualification | Rated for −40°C to +125°C operation and AEC-Q100 stress testing, suitable for under-hood applications. |
Applications
| Battery-Powered Sensor Node | Automotive Cabin Monitoring |
|---|---|
Use Scenario: Remote environmental sensor node powered by coin cell or Li-ion battery, measuring temperature, humidity, and voltage rails. IC Role / Device Role / Timing Role: ADC digitizes four analog sensor outputs sequentially; I²C interface enables low-pin-count connection to ultra-low-power MCU. Use Value: 1 µA shutdown current extends battery life; 1 µs conversion time allows rapid wake-up and measurement before returning to sleep. |
Use Scenario: In-cabin air quality and seat occupancy detection using thermistors, NTCs, and pressure sensors. IC Role / Device Role / Timing Role: Simultaneous sampling of multiple cabin sensors with channel isolation >90 dB prevents crosstalk-induced false triggers. Use Value: −40°C to +125°C rating ensures reliable operation across extreme ambient conditions; AEC-Q100 compliance meets automotive qualification requirements. |
| Portable Medical Instrument | Industrial PLC Analog Input Module |
Use Scenario: Handheld blood glucose meter or ECG front-end acquiring biopotential and auxiliary sensor signals. IC Role / Device Role / Timing Role: Digitizes low-noise analog signals from transducers; internal track-and-hold supports up to 14 MHz input bandwidth. Use Value: 10-bit resolution with ±0.4 LSB INL provides clinical-grade accuracy; VREF flexibility accommodates varying sensor output ranges. |
Use Scenario: DIN-rail mounted PLC module conditioning and digitizing 4–20 mA or 0–10 V field signals from industrial sensors. IC Role / Device Role / Timing Role: Front-end ADC for isolated analog input channels; sequencer automates round-robin sampling across multiple inputs. Use Value: Dual I²C address allows stacking multiple AD7995ARJZ-0RL units per module; 2.7–5.5 V supply range matches common industrial logic rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7991ARJZ-0RL | 12-bit resolution, higher INL (±1 LSB) and THD (−75 dB), same pinout and I²C interface. | Suitable where higher precision is required and SNR >70 dB is critical, e.g., precision instrumentation. | Select AD7991ARJZ-0RL when 12-bit resolution and improved dynamic performance justify cost and layout trade-offs. |
| AD7999ARJZ-0RL | 8-bit resolution, lower power (0.33 mW at 3.3 V), reduced INL (±0.15 LSB), same package and interface. | Optimized for cost-sensitive, high-volume applications where 256-level quantization suffices, e.g., basic status monitoring. | Choose AD7999ARJZ-0RL for ultra-low-cost sensing where 8-bit resolution meets functional requirements and power budget is tight. |
Compared with AD7991ARJZ-0RL and AD7999ARJZ-0RL, the AD7995ARJZ-0RL strikes a balance between resolution (10-bit), power efficiency (0.83 mW at 3.3 V/3.4 MHz), and cost-making it optimal for mid-tier industrial and automotive sensing where 1024-level granularity and robust I²C integration are essential.
Availability
AD7995ARJZ-0RL is available at Aetrix Electronics and suitable for battery-powered systems, automotive cabin monitoring, and portable medical instruments requiring stable component supply and long-term production continuity.
Supply support for AD7995ARJZ-0RL 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.
The AD799x family-including AD7995ARJZ-0RL-is designed for space-constrained, low-power applications requiring multichannel analog sensing with simple digital interfacing, especially in automotive, industrial, and portable medical systems.
FAQ
What is the resolution and architecture of the AD7995ARJZ-0RL?
The AD7995ARJZ-0RL is a 10-bit successive approximation register (SAR) analog-to-digital converter. It delivers guaranteed no-missing-codes performance with ±0.4 LSB integral nonlinearity and ±0.4 LSB differential nonlinearity. Its SAR architecture enables fast 1 µs conversion time and low power consumption, distinguishing it from sigma-delta or pipeline ADCs used in higher-resolution or higher-speed applications. The AD7995ARJZ-0RL maintains this specification across its full −40°C to +125°C operating range.
Does the AD7995ARJZ-0RL support external reference voltage?
Yes, the AD7995ARJZ-0RL supports external reference voltage applied to the VIN3/VREF pin, which accepts 1.2 V to VDD. When no external reference is used, the device derives VREF from VDD, enabling a 0 V to VDD analog input range. This dual-reference capability allows flexible input scaling-for example, connecting a 2.5 V reference yields a 0–2.5 V input range ideal for sensors with limited output swing. The AD7995ARJZ-0RL's reference input impedance is 69 kΩ, and input capacitance is 5 pF during conversion phase.
How many analog input channels does the AD7995ARJZ-0RL have, and how are they configured?
The AD7995ARJZ-0RL has four single-ended analog input channels: VIN0, VIN1, VIN2, and VIN3/VREF. VIN0–VIN2 are dedicated analog inputs; VIN3/VREF is configurable as either the fourth analog input or an external reference input. Channel selection is managed internally via a sequencer that supports automatic round-robin scanning without host intervention. All inputs share the same 0 V to VREF range and exhibit matched offset error (±0.04 LSB) and gain error (±0.06 LSB) for consistent multi-channel measurements.
What I²C speeds and addressing options does the AD7995ARJZ-0RL support?
The AD7995ARJZ-0RL supports standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) I²C modes. Clock stretching is implemented above 1.7 MHz to ensure reliable data transfer. It offers two hardware-selectable I²C addresses: 0x48 and 0x49-enabling two AD7995ARJZ-0RL devices on the same bus without address collision. Address selection is fixed per part number variant (e.g., AD7995-0 = 0x48, AD7995-1 = 0x49), and no software configuration is required.
Is the AD7995ARJZ-0RL qualified for automotive applications?
Yes, the AD7995ARJZ-0RL is qualified for automotive applications per AEC-Q100 standards. It is rated for operation from −40°C to +125°C and undergoes stress testing for reliability in harsh environments. Its 8-lead SOT-23 package is RoHS-compliant and qualified for reflow soldering at 260°C. The AD7995ARJZ-0RL's low-power shutdown mode (1 µA max), robust I²C interface, and channel-to-channel isolation (>90 dB) make it suitable for cabin monitoring, battery management, and other under-hood or interior automotive subsystems.
AD7995ARJZ-0RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 140k
- Number of Inputs:
- 3, 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:
- SOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7995ARJZ-0RL FAQ
1.How can I place an order for AD7995ARJZ-0RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7995ARJZ-0RL 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 AD7995ARJZ-0RL reliable?
The price and inventory of AD7995ARJZ-0RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7995ARJZ-0RL is usually 5 days.
3.What payment methods are accepted for AD7995ARJZ-0RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7995ARJZ-0RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7995ARJZ-0RL?
AD7995ARJZ-0RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7995ARJZ-0RL 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 AD7995ARJZ-0RL?
For technical support, including AD7995ARJZ-0RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7995ARJZ-0RL requirements.
6.How does Aetrix verify that AD7995ARJZ-0RL is sourced from the original manufacturer or authorized distributors?
All AD7995ARJZ-0RL 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 AD7995ARJZ-0RL meets industry standards.
7.What is the process for return or replacement of AD7995ARJZ-0RL?
All AD7995ARJZ-0RL units undergo pre-shipment inspection (PSI). If there is an issue with AD7995ARJZ-0RL, 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 AD7995ARJZ-0RL part is unused and in its original packaging.
Return procedure for AD7995ARJZ-0RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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