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Analog Devices Inc. AD8619ARUZ
- Part No.:
- AD8619ARUZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD8619ARUZ.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:732
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Product details
Overview
AD8619ARUZ from Analog Devices is a quad micropower, rail-to-rail input/output operational amplifier optimized for low-noise, low-voltage, single-supply operation (1.8 V to 5.5 V). It delivers 22 nV/√Hz voltage noise density at 10 kHz, 50 μA/amplifier max supply current over temperature, and 2.2 mV max offset voltage - enabling precision signal conditioning in battery-powered instrumentation and sensor interfaces.
For engineers reviewing the AD8619ARUZ datasheet, AD8619ARUZ pinout, AD8619ARUZ application, or AD8619ARUZ equivalent, this page provides verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for low-power, rail-to-rail op-amp selection in portable and automotive-grade systems.
Technical Context
The AD8619ARUZ implements a CMOS input stage with 1 pA max input bias current and rail-to-rail input common-mode range (0 V to VSY). Its unity-gain-stable architecture supports stable operation with capacitive loads up to 200 pF and exhibits no phase reversal under overdrive conditions.
It operates across −40°C to +125°C with guaranteed performance at 1.8 V and 5 V supplies, delivering 350–400 kHz gain bandwidth, 70° phase margin, and 68 dB min CMRR over full temperature range - making it suitable for high-accuracy, wide-dynamic-range analog front-ends in loop-powered and ASIC interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - enables direct interfacing with Li-ion, coin-cell, and 3.3 V/5 V logic without level-shifting. |
| Input Offset Voltage | Max 2.2 mV - ensures ≤0.044% error in 5 V full-scale 12-bit ADC predriver applications. |
| Supply Current per Amplifier | Max 50 μA over temperature - supports >1-year battery life in 10 μA sleep-mode sensor nodes. |
| Voltage Noise Density | 22 nV/√Hz at 10 kHz - preserves SNR in 10 kHz bandwidth sensor amplification chains. |
| Input Bias Current | Max 1 pA at 25°C - minimizes voltage error across high-impedance pH or photodiode sources. |
| CMRR | Min 68 dB over −40°C to +125°C - maintains accuracy in noisy industrial environments with ground shifts. |
| Gain Bandwidth Product | 350 kHz at 10 kΩ load - sufficient for anti-aliasing filters and DAC output buffering up to ~35 kHz. |
Pinout & Package
The AD8619ARUZ is housed in a 14-lead TSSOP (RU-14) package with 0.65 mm pitch, 5.00 mm × 4.40 mm body, and exposed thermal pad connected to V−.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | −IN A | Inverting input of Amplifier A - referenced to V−/V+ rails; accepts signals from 0 V to VSY. |
| 2 | +IN A | Non-inverting input of Amplifier A - high-impedance CMOS node; requires guard ring in sensitive layouts. |
| 3 | V+ | Positive supply rail - must be decoupled with ≥0.1 μF ceramic capacitor near pin. |
| 4 | OUT B | Output of Amplifier B - rail-to-rail swing (20 mV to VSY − 50 mV at 1 mA). |
| 5 | −IN B | Inverting input of Amplifier B - electrically isolated from other inputs; shares no internal routing. |
| 6 | +IN B | Non-inverting input of Amplifier B - matched to +IN A for dual-channel differential sensing. |
| 7 | OUT A | Output of Amplifier A - drives 10 kΩ loads with <23 μs settling to 0.1% at 2 V step. |
| 8 | V− | Negative supply rail - connects to system ground or negative rail; exposed pad must tie to V−. |
| 9 | OUT D | Output of Amplifier D - independent output stage; supports separate feedback networks per channel. |
| 10 | +IN D | Non-inverting input of Amplifier D - identical input structure to +IN A/B/C; no crosstalk below −120 dB. |
| 11 | V− | Second V− connection - reduces impedance to ground; required for thermal and noise performance. |
| 12 | OUT C | Output of Amplifier C - capable of sourcing/sinking ±7 mA at 1.8 V, ±80 mA at 5 V. |
| 13 | −IN C | Inverting input of Amplifier C - matches −IN A/B/D in offset drift and bias current specs. |
| 14 | +IN C | Non-inverting input of Amplifier C - fully specified for rail-to-rail operation at 1.8 V supply. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Prevents catastrophic latch-up when input exceeds supply rails - critical for sensor overvoltage protection. |
| Rail-to-rail input and output | Enables full utilization of 1.8 V supply headroom in low-voltage microcontroller ADC interfaces. |
| Qualified for automotive applications | AD8619WARUZ variant meets AEC-Q100 Grade 1; AD8619ARUZ is commercial-grade but shares same die and qualification baseline. |
| Low 1/f noise corner | 100 Hz corner frequency - minimizes drift in DC-coupled strain gauge and thermopile amplifiers. |
| High channel separation | ≥120 dB at 1 kHz - preserves integrity in multi-channel data acquisition with shared power/ground. |
Applications
| Current Shunt Sensing | Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring bidirectional motor current in battery-powered robotics using a 10 mΩ shunt resistor. IC Role / Device Role / Timing Role: Quad op-amp configured as two differential amplifiers (A+B) for high-side and low-side sensing, plus two buffers (C+D) for ADC drive. Use Value: 1 pA input bias avoids error from shunt resistor leakage; rail-to-rail output ensures full 0–3.3 V ADC range utilization at 1.8 V supply. | Use Scenario: Amplifying output of a 100 kΩ NTC thermistor in an IoT environmental monitor. IC Role / Device Role / Timing Role: Precision non-inverting amplifier (Channel A) with matched feedback network; Channel B used for reference buffer. Use Value: 2.2 mV max offset contributes <0.2°C error at 25°C; 22 nV/√Hz noise limits resolution to <0.05°C RMS in 10 Hz bandwidth. |
| ADC Predischarge Buffer | DAC Level Shifting |
Use Scenario: Driving SAR ADC input (e.g., AD7980) with fast settling and minimal charge kickback. IC Role / Device Role / Timing Role: Unity-gain buffer (Channel A) isolating RC filter from ADC input capacitance. Use Value: 23 μs settling to 0.1% meets 100 kSPS sampling; rail-to-rail output eliminates clipping during full-scale transitions. | Use Scenario: Converting 0–2.5 V DAC output to ±2.5 V bipolar signal for analog actuator control. IC Role / Device Role / Timing Role: Inverting summing amplifier (Channel C) with precision resistors; Channel D provides reference offset. Use Value: 68 dB min CMRR rejects supply ripple on ±2.5 V rails; 50 μA quiescent current extends battery runtime in portable calibrators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher 550 μA/amplifier supply current; 6.5 mV max offset; 2.5 V to 6 V supply range. | Not qualified for automotive; unsuitable for sub-2 V operation or ultra-low-power designs. | Select when higher drive strength (60 mA short-circuit) and wider supply range outweigh power/precision needs. |
| OPA2333PWR | Zero-drift architecture; 2 μV max offset; 17 μA/amplifier supply current; 1.8 V to 5.5 V supply. | Higher cost; limited 350 kHz GBW; not automotive-qualified in PWR package. | Select when nanovolt-level offset stability over time/temperature is mandatory, and bandwidth ≤350 kHz is acceptable. |
Compared with TLV2464IDR and OPA2333PWR, the AD8619ARUZ offers the optimal balance of micropower consumption (50 μA), low noise (22 nV/√Hz), and rail-to-rail operation down to 1.8 V - making it preferred for long-life battery sensors and automotive body electronics where precision and efficiency coexist.
Availability
AD8619ARUZ is available at Aetrix Electronics and suitable for battery-powered instrumentation, sensor signal conditioning, and automotive body control modules requiring stable component supply across extended temperature ranges.
Supply support for AD8619ARUZ 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 AD861x family was designed specifically for micropower, low-noise, rail-to-rail signal conditioning in portable, loop-powered, and automotive sensor interfaces - emphasizing precision, supply flexibility, and robustness over temperature.
FAQ
What is the operating temperature range for the AD8619ARUZ?
The AD8619ARUZ is specified for continuous operation from −40°C to +125°C. All key parameters - including offset voltage (2.2 mV max), supply current (50 μA/amplifier max), and CMRR (68 dB min) - are guaranteed across this full industrial and automotive-grade range, enabling deployment in engine bay or outdoor sensor enclosures without derating.
Does the AD8619ARUZ require external compensation for unity-gain stability?
No, the AD8619ARUZ is internally compensated and unity-gain stable. It drives capacitive loads up to 200 pF without oscillation, as verified in Figure 19 (Large Signal Transient Response) and Figure 22 (Negative Overload Recovery) of the Rev. H datasheet. No external compensation components are needed for standard gain configurations.
Can the AD8619ARUZ operate from a 1.8 V supply while maintaining rail-to-rail input and output swing?
Yes, the AD8619ARUZ fully supports 1.8 V single-supply operation with rail-to-rail input (0 V to 1.8 V) and output (44 mV to 1.73 V at 1 mA load). Table 2 confirms input voltage range, output voltage high/low, and CMRR performance at 1.8 V, making it suitable for direct interface with 1.8 V microcontrollers and ADCs.
Is the AD8619ARUZ pin-compatible with other devices in the AD861x family?
No - the AD8619ARUZ (quad, 14-pin TSSOP/SOIC) is not pin-compatible with the AD8613 (single, 5-pin) or AD8617 (dual, 8-pin). Pin counts, pinouts, and package footprints differ fundamentally. Board redesign is required when migrating between AD8613/AD8617/AD8619 variants due to distinct channel count and layout requirements.
What is the ESD rating of the AD8619ARUZ, and how does it impact PCB layout?
The AD8619ARUZ has HBM ±4000 V and FICDM ±1250 V ESD ratings. This allows safe handling in standard manufacturing environments but mandates proper PCB layout: input traces should avoid connectors or cables, guard rings around high-impedance inputs (e.g., +IN A) are recommended, and decoupling capacitors must be placed within 2 mm of V+ and V− pins to maintain noise immunity and transient response.
AD8619ARUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 400 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 38µA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
AD8619ARUZ FAQ
1.How can I place an order for AD8619ARUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8619ARUZ 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 AD8619ARUZ reliable?
The price and inventory of AD8619ARUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8619ARUZ is usually 5 days.
3.What payment methods are accepted for AD8619ARUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8619ARUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8619ARUZ?
AD8619ARUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8619ARUZ 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 AD8619ARUZ?
For technical support, including AD8619ARUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8619ARUZ requirements.
6.How does Aetrix verify that AD8619ARUZ is sourced from the original manufacturer or authorized distributors?
All AD8619ARUZ 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 AD8619ARUZ meets industry standards.
7.What is the process for return or replacement of AD8619ARUZ?
All AD8619ARUZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8619ARUZ, 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 AD8619ARUZ part is unused and in its original packaging.
Return procedure for AD8619ARUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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