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Analog Devices Inc. OP490GSZ-REEL
- Part No.:
- OP490GSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP490GSZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,063
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Product details
Overview
OP490GSZ-REEL from Analog Devices is a low-voltage, micropower quad operational amplifier designed for precision signal conditioning in space-constrained, battery-powered systems. It operates from single supplies (1.6 V to 36 V) or dual supplies (±0.8 V to ±18 V), delivers ≤80 μA total supply current, achieves ≤1.0 mV input offset voltage, and supports rail-to-rail output swing down to ground - enabling zero-in/zero-out operation in portable instrumentation and remote sensor front-ends.
For engineers reviewing the OP490GSZ-REEL datasheet, OP490GSZ-REEL pinout, OP490GSZ-REEL application, or OP490GSZ-REEL equivalent, key selection considerations include its 16-lead SOIC_W package, guaranteed 80 μA max quiescent current across temperature, input voltage range including the negative rail, high open-loop gain (>400 V/mV), and proven stability with capacitive loads up to 650 pF.
Technical Context
The OP490GSZ-REEL integrates four independent PNP-input op amps sharing a common 16-lead SOIC_W package. Its input stage provides ±20 V overvoltage protection relative to supplies, and its output stage actively pulls down to within 0.8 V of ground in single-supply mode, requiring only ≤1 MΩ load to reach true 0 V.
Each amplifier exhibits >90 dB CMRR at ±15 V supplies, <5.6 μV/V PSRR, and 60 nV/√Hz voltage noise density at 1 kHz - making it suitable for low-level analog signal amplification where power, precision, and supply flexibility are jointly constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 36 V single or ±0.8 V to ±18 V dual - enables direct use with lithium cells (3 V), alkaline stacks, or industrial rails without regulation. |
| Total Quiescent Current | ≤80 μA at ±15 V - allows continuous operation for hundreds of hours on a 1 Ah lithium cell. |
| Input Offset Voltage | ≤1.0 mV max at 25°C - ensures ≤10 mV error in unity-gain buffer applications with 10 V full-scale range. |
| Open-Loop Gain | ≥400 V/mV (≥112 dB) at ±15 V, RL = 100 kΩ - supports stable closed-loop gains >100 with <0.1% gain error. |
| Output Voltage Swing | 0 V to (V+) − 0.8 V in single-supply mode - enables true zero-in/zero-out operation with no level-shifting circuitry. |
| Capacitive Load Stability | Stable with ≤650 pF - eliminates need for isolation resistors when driving ADC input filters or long traces. |
| Common-Mode Rejection | ≥90 dB at ±15 V - rejects >99.98% of common-mode interference in noisy industrial sensor interfaces. |
Pinout & Package
OP490GSZ-REEL is housed in a 16-lead SOIC_W (RW-16) package per JEDEC MS-013-AA, with 1.27 mm lead pitch and gull-wing leads. Pin 1 is marked by a beveled corner or dot; pins are numbered counterclockwise from that corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or feedback network; capable of ≥5 mA sink/source. |
| 2 | –IN A | Inverting input of Amplifier A - connected to feedback path or signal inversion node. |
| 3 | +IN A | Noninverting input of Amplifier A - accepts reference, sensor, or signal source with ±20 V overvoltage tolerance. |
| 4 | V+ | Positive supply rail - accepts 1.6 V to 36 V or +0.8 V to +18 V in dual-supply mode. |
| 5 | +IN B | Noninverting input of Amplifier B - electrically isolated from other inputs; shares same PNP input structure. |
| 6 | –IN B | Inverting input of Amplifier B - used for differential, inverting, or transimpedance configurations. |
| 7 | OUT B | Amplifier B output - identical drive capability and output swing as OUT A. |
| 8 | NC | No connect - internal die bond pad not wired; must remain unconnected on PCB. |
| 9 | OUT C | Amplifier C output - functionally identical to OUT A/B; supports independent channel routing. |
| 10 | –IN C | Inverting input of Amplifier C - fully isolated; no crosstalk beyond specified 120 dB channel separation. |
| 11 | +IN C | Noninverting input of Amplifier C - compatible with ground-referenced sensors in single-supply systems. |
| 12 | +IN D | Noninverting input of Amplifier D - supports fourth independent signal path with same input protection. |
| 13 | –IN D | Inverting input of Amplifier D - usable for active filtering, summing, or programmable gain topologies. |
| 14 | OUT D | Amplifier D output - completes quad functionality; all outputs share same voltage swing and drive specs. |
| 15 | V– | Negative supply rail - accepts 0 V (ground) in single-supply mode or –0.8 V to –18 V in dual mode. |
| 16 | NC | No connect - unused internal terminal; must be left floating per datasheet guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply ground-sensing input | Input common-mode range includes V– (0 V in single-supply), enabling direct connection to grounded transducers. |
| Rail-to-rail output near ground | Active pull-down ensures output reaches ≤0.8 V above ground; ≤1 MΩ load pulls to true 0 V. |
| Overvoltage-protected inputs | PNP input stage + series resistors allow ±20 V input excursions beyond supplies without damage. |
| Micropower operation | ≤80 μA total supply current at ±15 V - reduces thermal load and extends battery life in always-on nodes. |
| High DC precision | ≤1.0 mV VOS and >90 dB CMRR ensure minimal offset drift and interference rejection in low-frequency sensing. |
| Quad integration with industry pinout | 16-pin SOIC matches standard quad op amp layout, simplifying drop-in replacement in existing designs. |
Applications
| Portable Battery-Powered Instrumentation | Remote Low-Power Sensor Signal Conditioning |
|---|---|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple or shunt voltage signals using a 3 V lithium cell. IC Role / Device Role / Timing Role: Quad amplifier performs simultaneous gain, filtering, reference buffering, and level-shifting - all within 80 μA total supply budget. Use Value: Enables >500-hour continuous operation on one CR2032 cell while maintaining <10 μV offset-induced measurement error. |
Use Scenario: Wireless environmental node measuring temperature, humidity, and gas concentration with analog sensor outputs. IC Role / Device Role / Timing Role: Four independent channels condition each sensor's output, drive ADC inputs, and buffer references - eliminating discrete op amp count. Use Value: Reduces BOM count by 3 vs. single op amps and cuts system standby current by 65% versus standard rail-to-rail quads. |
| Micropower Programmable-Gain Amplifier Array | Low-Voltage Precision DAC Output Buffering |
Use Scenario: Industrial PLC analog input module supporting software-selectable gain (1× to 256×) per channel via DAC control. IC Role / Device Role / Timing Role: Each OP490GSZ-REEL amplifier forms a programmable-gain stage with DAC8408 feedback, sharing one 5 V rail. Use Value: Achieves 140 μA total quiescent draw for four-channel PGA while maintaining 12-bit linearity and <0.5 LSB gain error. |
Use Scenario: Medical wearable generating calibrated analog therapy waveforms from an 8-bit DAC under 5 V supply. IC Role / Device Role / Timing Role: Buffers DAC voltage outputs with unity gain, rejecting load-induced nonlinearity and maintaining 0–4 V swing. Use Value: Ensures <0.1% THD+N at 1 kHz and preserves DAC monotonicity even with 10 kΩ dynamic loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher supply current (130 μA typical), lower VOS (0.6 mV max), but limited to 6 V single-supply operation. | Better DC precision at low voltage; unsuitable for >6 V rails or ±15 V industrial systems. | Select TLV2464IDR only when operating strictly below 6 V and sub-millivolt offset is critical. |
| AD8604ARUZ | Lower noise (22 nV/√Hz), higher GBWP (8 MHz), but consumes 240 μA and lacks overvoltage-protected inputs. | Superior AC performance for sensor signal chains above 10 kHz; requires external input clamping for robustness. | Choose AD8604ARUZ when bandwidth >100 kHz and noise <30 nV/√Hz are required, and input protection is added externally. |
Compared with TLV2464IDR and AD8604ARUZ, OP490GSZ-REEL uniquely balances ultra-low power (≤80 μA), wide supply range (1.6–36 V), built-in ±20 V input protection, and ground-sensing capability - making it the only option among the three viable for unregulated lithium-cell-powered field instruments requiring DC accuracy and ruggedness.
Availability
OP490GSZ-REEL is available at Aetrix Electronics and suitable for portable instrumentation, remote sensor nodes, and micropower programmable-gain amplifier designs requiring stable component supply, RoHS compliance, and long-term manufacturability.
Supply support for OP490GSZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets since 1965.
The OP490GSZ-REEL belongs to Analog Devices' precision micropower op amp product line, engineered specifically for battery- and energy-harvesting–powered systems where extended runtime, rail-compatible operation, and input robustness are mandatory design requirements.
FAQ
What is the maximum capacitive load the OP490GSZ-REEL can drive without oscillation?
The OP490GSZ-REEL is specified to remain stable with capacitive loads up to 650 pF when configured with unity gain (AV = 1). This value is measured and guaranteed per the datasheet's Electrical Characteristics table. Driving larger capacitive loads - such as long cables or ADC input filters - may require an isolation resistor or careful layout to maintain phase margin. The OP490GSZ-REEL's internal compensation eliminates need for external compensation components in most standard configurations.
Does the OP490GSZ-REEL support true single-supply operation with input and output referenced to ground?
Yes. The OP490GSZ-REEL features a PNP input stage and rail-to-rail output architecture that allows both input common-mode voltage and output swing to include the negative rail (0 V in single-supply mode). Its input voltage range extends to ground, and its output actively pulls down to within 0.8 V of ground - with a ≤1 MΩ load pulling it fully to 0 V. This enables zero-in/zero-out signal paths without level-shifting circuitry, a key advantage in low-voltage sensor interfaces.
What is the guaranteed input offset voltage specification for OP490GSZ-REEL over temperature?
The OP490GSZ-REEL has a maximum input offset voltage of 1.5 mV over the full operating temperature range of −40°C to +85°C, as specified in Table 2 of the Rev. E datasheet. At 25°C, the limit is tighter: 1.0 mV max. The average offset drift is 4 μV/°C, meaning total drift across the full range contributes ≤0.6 mV - well within the 1.5 mV bound. This performance is verified per unit during production test.
Can OP490GSZ-REEL be used with supply voltages below 1.6 V?
No. The absolute minimum recommended single-supply voltage for OP490GSZ-REEL is 1.6 V, and the minimum dual-supply is ±0.8 V, as stated in the General Description and Absolute Maximum Ratings sections. Operation below these thresholds is not characterized, may result in degraded parameters (e.g., reduced output swing, increased distortion), and is outside the guaranteed specification. For sub-1.6 V applications, alternative micropower amplifiers with lower VCC minima should be evaluated.
How does the input overvoltage protection on OP490GSZ-REEL work, and what is its rating?
The OP490GSZ-REEL incorporates series protection resistors and high-breakdown PNP transistors at both inverting and noninverting inputs, enabling safe operation with input voltages up to ±20 V beyond either supply rail - i.e., from (V− − 20 V) to (V+ + 20 V). This is explicitly confirmed in the Absolute Maximum Ratings table. Unlike op amps requiring external clamps, this protection is intrinsic and requires no additional components, making OP490GSZ-REEL suitable for industrial I/O where transient overvoltages are common.
OP490GSZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.012V/µs
- Gain Bandwidth Product:
- 20 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4.2 nA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 60µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.6 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
OP490GSZ-REEL FAQ
1.How can I place an order for OP490GSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for OP490GSZ-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 OP490GSZ-REEL reliable?
The price and inventory of OP490GSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP490GSZ-REEL is usually 5 days.
3.What payment methods are accepted for OP490GSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP490GSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP490GSZ-REEL?
OP490GSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP490GSZ-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 OP490GSZ-REEL?
For technical support, including OP490GSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP490GSZ-REEL requirements.
6.How does Aetrix verify that OP490GSZ-REEL is sourced from the original manufacturer or authorized distributors?
All OP490GSZ-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 OP490GSZ-REEL meets industry standards.
7.What is the process for return or replacement of OP490GSZ-REEL?
All OP490GSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with OP490GSZ-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 OP490GSZ-REEL part is unused and in its original packaging.
Return procedure for OP490GSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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