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Analog Devices Inc. AD7995YRJZ-0RL
- Part No.:
- AD7995YRJZ-0RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8
- Datasheet:
-
AD7995YRJZ-0RL.pdf
- Description:
- IC ADC 10BIT SAR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,319
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Product details
Overview
AD7995YRJZ-0RL from Analog Devices is a 10-bit, 4-channel successive approximation ADC with I²C-compatible serial interface, 1 µs conversion time, and operation from 2.7 V to 5.5 V supply. It features sequencer mode, −40°C to +125°C automotive-grade temperature range, and supports standard/fast/high-speed I²C modes for system monitoring in battery-powered instrumentation.
For engineers reviewing the AD7995YRJZ-0RL datasheet, AD7995YRJZ-0RL pinout, AD7995YRJZ-0RL application, or AD7995YRJZ-0RL equivalent, key selection considerations include its 10-bit resolution, 4 single-ended analog inputs (or 3 inputs + external reference), low 1 µA shutdown current, SOT-23-8 package, and I²C address flexibility (0x50 or 0x51).
Technical Context
The AD7995YRJZ-0RL integrates a track-and-hold amplifier enabling up to 14 MHz full-power bandwidth and a 4-channel analog multiplexer. Its I²C interface implements clock stretching above 400 kHz and supports three speed modes-standard (100 kHz), fast (400 kHz), and high-speed (1.7–3.4 MHz)-with two selectable addresses for bus scalability.
Conversion is command-triggered: each I²C read initiates acquisition and returns result. Reference can be derived internally from VDD (0 V to VDD input range) or externally via VIN3/VREF pin (1.2 V to VDD), supporting flexible signal conditioning in space-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - delivers 1024 distinct digital 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 Inputs | 4 single-ended channels (VIN0–VIN2 + VIN3/VREF) - supports either four sensor inputs or three inputs plus external reference. |
| I²C Address Options | 0x50 or 0x51 - allows two identical AD7995YRJZ-0RL devices on same bus without address conflict. |
| Supply Range | 2.7 V to 5.5 V - compatible with common microcontroller I/O domains and battery voltages (e.g., 3.3 V or 5 V rails). |
| Shutdown Current | 1 µA maximum - minimizes quiescent power in always-on monitoring applications. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and harsh-environment use. |
Pinout & Package
AD7995YRJZ-0RL uses an 8-lead SOT-23 package with exposed pad (RoHS-compliant, moisture sensitivity level 1). Pinout is standardized across the AD7991/AD7995/AD7999 family.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Digital Input | Serial clock line; requires external pull-up; supports standard/fast/high-speed I²C timing. |
| SDA | Digital I/O (open-drain) | Bidirectional data line; requires external pull-up; handles both command writes and conversion result reads. |
| VIN0–VIN2 | Analog Inputs | Single-ended channels with 0 V to VREF input range; 34 pF acquisition-phase capacitance limits source impedance requirements. |
| VIN3/VREF | Analog Input / Reference Input | Configurable as fourth analog input or external reference input (1.2 V to VDD); 35 pF capacitance during conversion phase. |
| VDD | Power Supply | 2.7 V to 5.5 V analog/digital supply; powers internal reference when VREF = VDD. |
| GND | Analog Ground | Common reference for all analog circuitry; must be star-connected to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Auto shutdown mode | Enters ultra-low-power state between conversions, reducing average current to sub-µA levels in idle polling scenarios. |
| I²C speed flexibility | Supports 100 kHz, 400 kHz, and 1.7–3.4 MHz modes - enables optimization of throughput vs. EMI/noise in mixed-signal PCB layouts. |
| Reference sourcing options | Accepts VDD-derived reference (maximizing dynamic range) or external precision reference (enabling ratiometric or calibrated measurements). |
| Channel-to-channel isolation | −90 dB at 10 kHz - ensures minimal crosstalk when sequentially sampling multiple sensors sharing common ground paths. |
| Industrial temperature grade | Specified over −40°C to +125°C with validated parametric performance - eliminates derating concerns in engine control or motor drive applications. |
Applications
| Automotive Battery Monitoring | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Real-time voltage and temperature monitoring of 12 V lead-acid or Li-ion battery packs in start-stop systems or EV auxiliary modules. IC Role / Device Role / Timing Role: ADC digitizes four analog signals (cell voltage, pack current sense, thermistor, and reference) with synchronized sequencing and I²C streaming to MCU. Use Value: 10-bit resolution and −40°C to +125°C operation ensure accurate state-of-charge estimation across vehicle operating conditions without external calibration. | Use Scenario: Compact wearable or handheld device acquiring ECG, SpO₂, skin temperature, and accelerometer data for remote patient monitoring. IC Role / Device Role / Timing Role: Low-power ADC interfaces multiple analog front-ends, using I²C to batch-transfer samples to an ARM Cortex-M0+ host with minimal GPIO usage. Use Value: 1 µA shutdown current extends battery life; SOT-23-8 footprint saves board area; I²C compatibility simplifies firmware integration versus SPI alternatives. |
| Industrial PLC Analog Input Module | Smart Energy Meter Sensor Interface |
Use Scenario: DIN-rail mounted controller measuring voltage, current, temperature, and humidity from field transducers in factory automation. IC Role / Device Role / Timing Role: ADC provides isolated analog input channel aggregation, with sequencer mode enabling deterministic round-robin sampling across four channels. Use Value: Guaranteed monotonicity and ±0.4 LSB INL support 0.1% measurement accuracy; robust ESD rating (1 kV) withstands industrial EMI environments. | Use Scenario: Residential/utility meter measuring voltage, current, neutral current, and temperature for tamper detection and thermal derating. IC Role / Device Role / Timing Role: ADC digitizes metrology-grade analog signals, using external reference for ratiometric accuracy and I²C for secure, low-pin-count communication with meter SoC. Use Value: External VREF input enables traceable calibration; 1.2 V minimum reference voltage supports low-voltage precision references; automotive qualification ensures long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7991YRJZ-0RL | 12-bit resolution, higher SINAD (70 dB), tighter INL (±1 LSB), but higher power (0.25 mA active @ 3.3 V/400 kHz) | Better suited for precision data acquisition where resolution >10 bits is required; less optimal for ultra-low-power battery use | Select AD7991YRJZ-0RL when 12-bit accuracy justifies increased current draw and cost |
| AD7999YRJZ-0RL | 8-bit resolution, lower THD (−65 dB), reduced power (0.1 mA active @ 3.3 V/400 kHz), same package and I²C interface | Targeted at cost-sensitive, high-volume applications like basic sensor polling where 8-bit granularity suffices | Choose AD7999YRJZ-0RL for non-critical monitoring where lower resolution and bill-of-materials cost are primary drivers |
Compared with AD7991YRJZ-0RL and AD7999YRJZ-0RL, the AD7995YRJZ-0RL delivers optimal balance of resolution (10-bit), power efficiency (0.09 mA active @ 3.3 V/400 kHz), and automotive temperature range - making it the preferred choice for mid-tier industrial and automotive sensing where 1% measurement fidelity is required without premium cost or power penalty.
Availability
AD7995YRJZ-0RL is available at Aetrix Electronics and suitable for automotive battery management, portable medical instrumentation, industrial PLC analog input modules, and smart energy metering requiring stable component supply and long-lifecycle support.
Supply support for AD7995YRJZ-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 series was designed specifically for space-constrained, low-power, multi-channel data acquisition in automotive, industrial, and medical systems - emphasizing I²C simplicity, wide supply range, and extended temperature operation.
FAQ
What is the maximum I²C clock frequency supported by the AD7995YRJZ-0RL?
The AD7995YRJZ-0RL supports high-speed I²C mode up to 3.4 MHz with ≤100 pF bus capacitance, or 1.7 MHz with ≤400 pF. Standard (100 kHz) and fast (400 kHz) modes are also fully supported. Clock stretching is implemented above 400 kHz to accommodate conversion latency, ensuring reliable data transfer without MCU-side timing constraints. This behavior is inherent to the AD7995YRJZ-0RL's internal interface logic.
Does the AD7995YRJZ-0RL require an external reference voltage?
No, the AD7995YRJZ-0RL does not require an external reference. It can use VDD as the reference source, providing a 0 V to VDD input range - ideal for ratiometric sensor interfaces. However, the VIN3/VREF pin accepts an external reference from 1.2 V to VDD, enabling higher accuracy when paired with a precision voltage reference IC. Both configurations are fully supported in the AD7995YRJZ-0RL datasheet and require no hardware modification.
How many analog input channels does the AD7995YRJZ-0RL have, and how are they configured?
The AD7995YRJZ-0RL has four analog input terminals: VIN0, VIN1, VIN2, and VIN3/VREF. By default, all four operate as single-ended inputs. Alternatively, VIN3/VREF can be used exclusively as an external reference input, leaving VIN0–VIN2 as three analog channels. Configuration is handled entirely in software via I²C register writes - no external jumpers or resistors are needed to switch modes in the AD7995YRJZ-0RL.
What is the guaranteed performance of the AD7995YRJZ-0RL over temperature?
The AD7995YRJZ-0RL is fully specified from −40°C to +125°C (Y grade). Key parameters including offset error (±2.25 LSB max), gain error (±0.5 LSB max), INL (±0.4 LSB), and supply current (1 µA shutdown) are tested and guaranteed across this range. Thermal drift specs - such as 4.13 ppm/°C offset drift and 0.50 ppm/°C gain drift - are provided in the datasheet to enable worst-case error budgeting in the AD7995YRJZ-0RL's target applications.
Can multiple AD7995YRJZ-0RL devices share the same I²C bus?
Yes, two AD7995YRJZ-0RL devices can operate on the same I²C bus because the part is offered in two versions (−0 and −1) with fixed addresses 0x50 and 0x51. No address pins or configuration registers are required - the variant is determined by the ordering code. This dual-address capability is built into the silicon design of the AD7995YRJZ-0RL and requires no external hardware changes.
AD7995YRJZ-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:
- -
AD7995YRJZ-0RL FAQ
1.How can I place an order for AD7995YRJZ-0RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7995YRJZ-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 AD7995YRJZ-0RL reliable?
The price and inventory of AD7995YRJZ-0RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7995YRJZ-0RL is usually 5 days.
3.What payment methods are accepted for AD7995YRJZ-0RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7995YRJZ-0RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7995YRJZ-0RL?
AD7995YRJZ-0RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7995YRJZ-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 AD7995YRJZ-0RL?
For technical support, including AD7995YRJZ-0RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7995YRJZ-0RL requirements.
6.How does Aetrix verify that AD7995YRJZ-0RL is sourced from the original manufacturer or authorized distributors?
All AD7995YRJZ-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 AD7995YRJZ-0RL meets industry standards.
7.What is the process for return or replacement of AD7995YRJZ-0RL?
All AD7995YRJZ-0RL units undergo pre-shipment inspection (PSI). If there is an issue with AD7995YRJZ-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 AD7995YRJZ-0RL part is unused and in its original packaging.
Return procedure for AD7995YRJZ-0RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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