My Inquiry
My Account
Analog Devices Inc. AD8542ARUZ-REEL
- Part No.:
- AD8542ARUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD8542ARUZ-REEL.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD8542ARUZ-REEL from Analog Devices is a dual-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-power, single-supply operation across 2.7 V to 5.5 V. It delivers 1 MHz gain bandwidth, 45 µA per amplifier supply current, and 4 pA typical input bias current, enabling high-impedance sensor interfacing in portable medical and industrial instrumentation.
For engineers reviewing the AD8542ARUZ-REEL datasheet, AD8542ARUZ-REEL pinout, AD8542ARUZ-REEL application, or AD8542ARUZ-REEL equivalent, key selection criteria include rail-to-rail output swing at 2.7 V, AEC-Q100 qualification status, thermal performance in TSSOP-8, and verified photodiode amplifier stability with <0.1 pA/√Hz current noise density.
Technical Context
The AD8542ARUZ-REEL employs a CMOS input stage with rail-to-rail differential input voltage range (GND to VS) and complementary output stage delivering true rail-to-rail output swing-VOH ≥ 2.85 V and VOL ≤ 125 mV at 1 mA load over −40°C to +125°C. Its unity-gain stable architecture supports active filter and transimpedance configurations without external compensation.
Designed for extended industrial temperature operation, it maintains 1000 kHz gain bandwidth and 67° phase margin at 5 V while achieving 4 µV/°C offset drift and 60 fA/°C bias current drift over full temperature range-critical for precision DC-coupled signal chains in automotive sensor modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - Enables direct interface with Li-ion battery (3.0–4.2 V) and 3.3 V logic without level shifting. |
| Gain Bandwidth Product | 1000 kHz - Supports stable 10× gain at 100 kHz for anti-aliasing filters in 16-bit SAR ADC front-ends. |
| Input Bias Current | 4 pA typical - Allows use with >100 MΩ source impedances in piezoelectric transducer amplifiers without significant error. |
| Output Swing (2.7 V) | VOH ≥ 2.55 V, VOL ≤ 125 mV - Delivers >95% of rail-to-rail dynamic range for ASIC buffer applications in 2.7 V systems. |
| Supply Current per Amp | 45 µA typical - Enables dual-channel operation at <90 µA total, extending battery life in portable ECG monitors beyond 72 hours. |
| Input Offset Drift | 4 µV/°C - Limits thermal-induced error to <0.5 mV over −40°C to +125°C, suitable for uncalibrated automotive cabin sensors. |
| Common-Mode Rejection | 38 dB min (−40°C to +125°C) - Sufficient for single-supply sensor conditioning where common-mode variation is constrained by reference design. |
Pinout & Package
AD8542ARUZ-REEL is housed in an 8-lead TSSOP (RU-8) package with 0.65 mm pitch, 3.0 mm × 4.4 mm body, and exposed pad for thermal enhancement. Thermal resistance θJA = 240°C/W on standard 4-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (A) | High-impedance CMOS node accepting differential signals up to supply rails; requires guard ring in photodiode applications. |
| 2 | Non-Inverting Input (A) | Reference point for channel A; matched input capacitance to Pin 1 enables balanced layout for low noise. |
| 3 | Output (A) | Rail-to-rail capable output sourcing/sinking 15 mA at 2.7 V; drives 100 kΩ loads with <0.1% settling in 5 µs. |
| 4 | Ground | Primary return path for both amplifiers; must connect directly to low-impedance ground plane under exposed pad. |
| 5 | Output (B) | Independent rail-to-rail output for channel B; electrically isolated from Pin 3 to prevent crosstalk in dual-sensor systems. |
| 6 | Non-Inverting Input (B) | Input for second amplifier; identical electrical characteristics to Pin 2-supports matched dual-channel designs. |
| 7 | Inverting Input (B) | Differential input for channel B; symmetrical layout with Pins 1 and 2 minimizes PCB-induced offset mismatch. |
| 8 | Supply Voltage (VS+) | Single positive supply input; decoupling capacitor (100 nF X7R) required within 3 mm for stable 1 MHz operation. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed operation with inputs driven beyond rails (±6 V differential), eliminating latch-up risk in overvoltage sensor interfaces. |
| Rail-to-rail I/O | Input common-mode range extends to GND and VS; output swings within 125 mV of rails at 1 mA-maximizes dynamic range in 3.3 V data acquisition. |
| AEC-Q100 qualified | Validated for automotive grade 1 (−40°C to +125°C) per stress test requirements-enables use in engine control and ADAS sensor nodes. |
| Low input current drift | ΔIB/ΔT ≤ 2000 fA/°C over full temperature range-ensures stable transimpedance gain in optical smoke detectors across environmental extremes. |
| Unity-gain stable | Operates without external compensation in gain = 1 configurations-reduces BOM count in buffer stages for analog front-end ICs. |
Applications
| Medical Instrumentation | Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level bio-potential signals from dry-electrode ECG patches in wearable monitors. IC Role / Device Role / Timing Role: Dual-channel transimpedance and buffer amplifier providing rail-to-rail output swing into 16-bit SAR ADC reference buffers. Use Value: 4 pA input bias current prevents electrode polarization errors; 45 µA/quiescent current enables >5-day battery life in continuous monitoring mode. |
Use Scenario: Conditioning output from MEMS pressure sensors in tire pressure monitoring systems (TPMS). IC Role / Device Role / Timing Role: Signal conditioner with rail-to-rail input range capturing sensor zero-point drift across −40°C to +125°C ambient. Use Value: 4 µV/°C offset drift limits calibration interval to once per vehicle lifetime; AEC-Q100 qualification ensures reliability in under-hood environments. |
| Piezoelectric Transducer | Portable Audio Output |
Use Scenario: Charge amplifier for ultrasonic distance sensing in smart home devices using ceramic transducers. IC Role / Device Role / Timing Role: High-input-impedance amplifier converting pC-level charge pulses into voltage with minimal signal loss. Use Value: 1000 kHz bandwidth resolves 1 µs pulse edges; low 38 nV/√Hz voltage noise preserves SNR in 40–100 kHz echo detection. |
Use Scenario: Headphone driver in Bluetooth earbuds requiring low THD and rail-to-rail output swing from 3.7 V Li-ion supply. IC Role / Device Role / Timing Role: Output buffer isolating DAC from variable headphone impedance while maintaining DC-coupled signal path. Use Value: 15 mA output drive capability supports 16 Ω loads; 0.4 V/µs slew rate prevents clipping on 1 kHz tones at full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Higher 150 µA supply current, 1 MHz GBW, but only 300 mV output swing from rail at 2.7 V. | Limited to non-critical consumer audio; not AEC-Q100 qualified or specified for −40°C to +125°C. | Select when cost sensitivity outweighs power efficiency and automotive compliance requirements. |
| MCP6022-E/SN | Lower 17 µA supply current but only 10 kHz GBW and 100 pA input bias current-unsuitable for photodiode or fast-settling applications. | Better for ultra-low-power battery sensors with <10 kHz bandwidth; lacks rail-to-rail output at 2.7 V. | Choose only for sub-10 kHz DC-coupled sensor buffering where input impedance >10 MΩ is acceptable. |
Compared with LMV358IDR and MCP6022-E/SN, AD8542ARUZ-REEL uniquely balances 1 MHz bandwidth, 4 pA input bias, AEC-Q100 qualification, and rail-to-rail output at 2.7 V-making it the only option among the three for automotive-grade, high-impedance, battery-operated sensor signal chains requiring <100 µA total quiescent current.
Availability
AD8542ARUZ-REEL is available at Aetrix Electronics and suitable for medical instrumentation, automotive sensor modules, and portable industrial test equipment requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for AD8542ARUZ-REEL 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD854x family was engineered specifically for low-voltage, low-power precision signal conditioning-targeting battery-powered medical devices, automotive cabin sensors, and portable instrumentation where rail-to-rail operation and nanoampere input bias are mandatory.
FAQ
What is the operating temperature range for AD8542ARUZ-REEL?
The AD8542ARUZ-REEL is specified for operation from −40°C to +125°C across its full electrical performance envelope. This extended industrial temperature range is validated per AEC-Q100 Grade 1 requirements, making AD8542ARUZ-REEL suitable for under-hood automotive applications and industrial environments where thermal cycling exceeds standard commercial limits.
Does AD8542ARUZ-REEL support true rail-to-rail input and output?
Yes, AD8542ARUZ-REEL provides true rail-to-rail input common-mode range (GND to VS) and rail-to-rail output swing. At 2.7 V supply and 1 mA load, VOH ≥ 2.55 V and VOL ≤ 125 mV over −40°C to +125°C-enabling maximum signal utilization in single-supply systems without external level-shifting circuitry.
Is AD8542ARUZ-REEL pin-compatible with other AD854x variants?
No, AD8542ARUZ-REEL uses the 8-lead TSSOP (RU-8) package, which is not pin-compatible with AD8542ARMZ (MSOP-8) or AD8542ARZ (SOIC-8). While all share identical pin functions, physical pin spacing (0.65 mm vs. 0.5 mm MSOP or 1.27 mm SOIC) and thermal pad configuration differ-requiring unique PCB footprints for each variant.
What is the maximum capacitive load AD8542ARUZ-REEL can drive stably?
AD8542ARUZ-REEL remains unity-gain stable with capacitive loads up to 200 pF when configured as a voltage follower. For loads exceeding 200 pF, a series resistor (≥100 Ω) between output and capacitance is recommended to maintain phase margin above 60°, as confirmed in Figure 13 of the Rev. H datasheet.
Can AD8542ARUZ-REEL be used as a comparator?
Yes, AD8542ARUZ-REEL can function as a comparator due to its rail-to-rail input range, fast 5 µs propagation delay at 5 V, and lack of phase reversal. However, it lacks internal hysteresis-external feedback (e.g., R2 in Figure 39) must be added for reliable overload detection in applications like battery protection circuits using AD8542ARUZ-REEL.
AD8542ARUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.92V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 45µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AD8542ARUZ-REEL FAQ
1.How can I place an order for AD8542ARUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8542ARUZ-REEL 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 AD8542ARUZ-REEL reliable?
The price and inventory of AD8542ARUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8542ARUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8542ARUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8542ARUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8542ARUZ-REEL?
AD8542ARUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8542ARUZ-REEL 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 AD8542ARUZ-REEL?
For technical support, including AD8542ARUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8542ARUZ-REEL requirements.
6.How does Aetrix verify that AD8542ARUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8542ARUZ-REEL 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 AD8542ARUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8542ARUZ-REEL?
All AD8542ARUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8542ARUZ-REEL, 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 AD8542ARUZ-REEL part is unused and in its original packaging.
Return procedure for AD8542ARUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD8542ARUZ-REEL Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
