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Analog Devices Inc. AD8230YRZ
- Part No.:
- AD8230YRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8230YRZ.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,582
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Product details
Overview
AD8230YRZ from Analog Devices is a zero-drift, rail-to-rail input/output precision instrumentation amplifier optimized for low-frequency sensor signal conditioning. It delivers 110 dB minimum CMR at 60 Hz, 10 µV max RTI offset (±5 V), and 50 nV/°C max offset drift across −40°C to +125°C - enabling high-accuracy thermocouple and bridge transducer measurements in noisy industrial environments.
For engineers reviewing the AD8230YRZ datasheet, AD8230YRZ pinout, AD8230YRZ application, or AD8230YRZ equivalent, key selection criteria include its resistor-programmable gain (101–1000), 16 V rail-to-rail common-mode input range, auto-zeroing topology for ultra-low drift, and SOIC-8 packaging compatible with standard PCB assembly processes.
Technical Context
The AD8230YRZ employs a fully differential auto-zeroing architecture with dual sampling phases (6 kHz internal clock) to cancel input offset and 1/f noise. Its preamp and gain amp both implement dynamic offset correction, achieving <50 nV/°C drift and 3 µV p-p 0.1–10 Hz noise.
Gain is set by two external matched resistors (RF and RG), enabling precise TC-matched configurations; output level-shifting is supported via dual reference pins (VREF1/VREF2), with VREF2 directly setting output common-mode voltage without current draw.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Range | 101 to 1000 - set by external RF/RG ratio; enables precise scaling of mV-level sensor outputs to full ADC input range |
| CMR @ 60 Hz | 110 dB min - rejects line-frequency interference in remote bridge/thermocouple sensing where ground offsets exceed ±5 V |
| RTI Offset Voltage | 10 µV max (±5 V) - ensures ≤0.1% error in 10 mV full-scale strain gauge signals without calibration |
| Offset Drift | 50 nV/°C max - limits temperature-induced error to <6 µV over 125°C industrial range |
| Input Common-Mode Range | ±VS (16 V total) - supports direct connection to sensors with floating grounds up to ±8 V relative to amplifier supply |
| Output Swing | Rail-to-rail (−VS + 0.1 V to +VS − 0.2 V) - maximizes dynamic range into 10 kΩ loads without external level-shifting circuitry |
| Supply Range | ±4 V to ±8 V (dual) or +8 V to +16 V (single) - compatible with standard industrial power rails including ±5 V and ±8 V systems |
Pinout & Package
AD8230YRZ is housed in an 8-lead SOIC_N (R-8) package per JEDEC MS-012-AA, with 1.27 mm pitch, 5.00 × 4.00 mm body, and 1.75 mm max height - suitable for automated SMT assembly and IPC Class 2/3 reliability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –IN | Inverting input | Differential input node; high-impedance, actively driven switched-capacitor input stage |
| 2: +IN | Non-inverting input | Differential input node; matched parasitic capacitance (70 pF) to –IN for CMR optimization |
| 3: VREF2 | Output common-mode reference | Zero-current pin setting output DC level; must be star-connected to ground or stable reference |
| 4: –VS | Negative supply | Power rail connection; requires local 0.1 µF bypass capacitor |
| 5: +VS | Positive supply | Power rail connection; requires local 0.1 µF bypass capacitor |
| 6: VOUT | Amplified output | Single-ended rail-to-rail output; drives 10 kΩ loads with <0.2 V headroom to rails |
| 7: RG | Gain-setting resistor terminal | Connects to external RG; sensitive to leakage current - avoid wire-wound resistors |
| 8: VREF1 | Internal reference bias | Current-drawing pin for internal bias generation; must be star-connected to ground or reference |
Key Features
| Feature | Design Value |
|---|---|
| Auto-zeroing topology | Reduces RTI offset drift to ≤50 nV/°C and 0.1–10 Hz noise to 3 µV p-p for stable dc measurements |
| Dual reference pins (VREF1/VREF2) | VREF1 supplies internal bias current; VREF2 sets output common-mode without loading - enables clean level-shifting |
| Resistor-programmable gain | Two external resistors (RF/RG) allow TC-matched gain stability superior to single-resistor IAs |
| 16 V rail-to-rail common-mode input | Accepts sensor inputs with ground differentials up to ±8 V - eliminates need for front-end level-shifting in industrial field wiring |
| Extended temperature operation | Specified performance from −40°C to +125°C - validated for automotive diagnostics and engine bay monitoring |
Applications
| Pressure measurements | Temperature measurements |
|---|---|
Use Scenario: High-precision pressure transducers (e.g., silicon piezoresistive bridges) deployed in hydraulic control systems with long cable runs and ground potential differences. IC Role / Device Role / Timing Role: Precision instrumentation amplifier conditioning low-level bridge output (1–10 mV) while rejecting common-mode noise from motor drives and solenoids. Use Value: 110 dB CMR and 16 V input range prevent measurement corruption from ground loops exceeding ±5 V, ensuring <0.05% FS accuracy. | Use Scenario: Type K/J thermocouples in industrial ovens and furnace controllers where ambient temperature swings from −20°C to +85°C occur. IC Role / Device Role / Timing Role: Cold-junction compensated signal conditioner with programmable gain (G = 100–200) scaling thermocouple mV output to 0–5 V ADC range. Use Value: 10 µV offset and 50 nV/°C drift minimize cold-junction compensation errors, enabling ±0.5°C system accuracy without software calibration. |
| Strain measurements | Automotive diagnostics |
Use Scenario: Load cells and strain gauges in weigh scales and structural health monitoring, exposed to vibration and EMI in factory floors. IC Role / Device Role / Timing Role: Low-noise, high-CMR front-end amplifier for Wheatstone bridge outputs, driving SAR ADCs with minimal settling time. Use Value: 3 µV p-p 0.1–10 Hz noise and rail-to-rail output swing preserve resolution of 24-bit ADCs measuring sub-microstrain changes. | Use Scenario: On-board diagnostic (OBD-II) sensor interfaces for exhaust gas temperature (EGT), coolant temperature, and brake pressure in engine control units. IC Role / Device Role / Timing Role: Robust signal conditioner for millivolt-level sensors operating in harsh automotive environments with wide supply and temperature variation. Use Value: −40°C to +125°C operation and ±8 V supply tolerance ensure reliable function during cold cranking and under-hood thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8429ARZ | Higher gain bandwidth (10 MHz vs. 1.5 MHz), lower noise (1.2 nV/√Hz), but fixed G = 1000; no resistor-programmable gain | Better for high-speed, low-noise applications like medical EEG; unsuitable where variable gain is required | Select AD8429ARZ only when fixed high gain and bandwidth outweigh flexibility needs |
| INA128UA | Lower CMR (120 dB typ at DC, degrades to ~90 dB at 60 Hz), higher offset (50 µV), wider supply (±2.25 V to ±18 V) | More tolerant of supply variation; less effective against 60 Hz line noise in remote sensing | Choose INA128UA for cost-sensitive, non-critical industrial applications where 60 Hz rejection is secondary |
Compared with AD8230YRZ, AD8429ARZ trades programmability for speed and noise performance, while INA128UA offers broader supply range at the expense of 60 Hz CMR and dc precision - making AD8230YRZ optimal for high-accuracy, low-frequency sensor interfaces requiring field-configurable gain.
Availability
AD8230YRZ is available at Aetrix Electronics and suitable for pressure measurements, temperature measurements, and strain measurements requiring stable component supply across extended temperature ranges and high-reliability industrial deployments.
Supply support for AD8230YRZ 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 AD8230YRZ belongs to Analog Devices' precision instrumentation amplifier product line, designed specifically for high-accuracy, low-drift dc signal conditioning of millivolt-level sensors in electrically noisy and thermally demanding environments.
FAQ
What is the maximum differential input voltage for AD8230YRZ?
The AD8230YRZ has a maximum differential input voltage of 750 mV. Exceeding this limit may cause clipping or nonlinearity, even though the common-mode input range extends rail-to-rail (±VS). This constraint applies across all gain settings and temperature conditions, and is critical when configuring bridge or thermocouple circuits with large signal swings.
Can AD8230YRZ operate on a single supply?
Yes, AD8230YRZ supports single-supply operation from +8 V to +16 V. When using single supply, the reference pins (VREF1/VREF2) must be biased appropriately - typically to mid-supply - to establish correct output common-mode voltage. The rail-to-rail input and output stages maintain full dynamic range under these conditions.
How does the auto-zeroing architecture of AD8230YRZ reduce low-frequency noise?
The AD8230YRZ uses a 6 kHz internal clock to dynamically sample and null input offset in two phases, effectively eliminating 1/f noise and drift. This results in only 3 µV p-p voltage noise from 0.1 Hz to 10 Hz - a key advantage over conventional op-amp-based IAs for precision dc measurements like thermocouple readouts.
What is the purpose of the dual reference pins (VREF1 and VREF2) on AD8230YRZ?
VREF1 supplies bias current for internal reference generation and must be connected to a low-impedance node (e.g., ground); VREF2 sets the output common-mode voltage without drawing current, allowing clean level-shifting. Their separation prevents interaction between bias current paths and output DC level control - essential for stable operation in multi-channel systems.
Is AD8230YRZ pin-compatible with other Analog Devices instrumentation amplifiers?
No, AD8230YRZ has a unique 8-pin SOIC pinout optimized for its dual-reference and resistor-programmable architecture. It is not pin-compatible with AD620, AD8221, or AD8421. Layout redesign is required when substituting - particularly due to dedicated VREF1/VREF2 pins and RG terminal placement.
AD8230YRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 150 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 3.2mA
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8230YRZ FAQ
1.How can I place an order for AD8230YRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8230YRZ 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 AD8230YRZ reliable?
The price and inventory of AD8230YRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8230YRZ is usually 5 days.
3.What payment methods are accepted for AD8230YRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8230YRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8230YRZ?
AD8230YRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8230YRZ 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 AD8230YRZ?
For technical support, including AD8230YRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8230YRZ requirements.
6.How does Aetrix verify that AD8230YRZ is sourced from the original manufacturer or authorized distributors?
All AD8230YRZ 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 AD8230YRZ meets industry standards.
7.What is the process for return or replacement of AD8230YRZ?
All AD8230YRZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8230YRZ, 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 AD8230YRZ part is unused and in its original packaging.
Return procedure for AD8230YRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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