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Analog Devices Inc. OP482GPZ
- Part No.:
- OP482GPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
OP482GPZ.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:776
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Product details
Overview
OP482GPZ from Analog Devices is a quad JFET-input operational amplifier optimized for high-speed, low-power operation in precision signal conditioning circuits. It delivers 9 V/µs slew rate, 4 MHz gain bandwidth, and 250 µA/amplifier supply current, with input bias current ≤100 pA and offset voltage ≤4 mV - enabling high-side sensing and battery-powered instrumentation.
For engineers reviewing the OP482GPZ datasheet, OP482GPZ pinout, OP482GPZ application, or OP482GPZ equivalent, key selection criteria include rail-to-rail input common-mode range (including V+), unity-gain stability, low-noise JFET architecture, and compatibility with active filters, current monitoring, and programmable state-variable filter topologies.
Technical Context
The OP482GPZ employs a JFET differential input stage to achieve sub-100 pA bias current and wide common-mode range (−11 V to +15 V), supporting high-side sensing without level-shifting. Its unity-gain stable architecture ensures robust performance in gain-of-1 configurations with minimal external compensation.
Specified over −40°C to +85°C, it maintains 4 MHz GBP and 55° phase margin across temperature and supply voltage (±4.5 V to ±18 V), while delivering 13.5 V output swing into 10 kΩ - critical for analog front-ends in portable medical and geophysical equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 9 V/µs - enables fast settling (<1.6 µs to 0.01%) for pulse amplification and active filter transient response |
| Gain Bandwidth Product | 4 MHz - supports stable closed-loop gains up to 100 at 40 kHz, suitable for anti-aliasing and reconstruction filters |
| Input Bias Current | ≤100 pA max - minimizes error in high-impedance sensor interfaces (e.g., piezoelectric transducers, pH electrodes) |
| Input Offset Voltage | ≤4 mV max - ensures <0.1% gain error in 12-bit systems with 4 V full-scale input ranges |
| Supply Current per Amplifier | 250 µA max - allows four-channel operation at <1 mA total, ideal for coin-cell–powered devices |
| Common-Mode Input Range | Includes V+ (up to +15 V) - permits direct high-side current sensing without external bias networks |
| Output Voltage Swing | ±13.5 V into 10 kΩ - provides >90% of ±15 V rails for maximum dynamic range in dual-supply systems |
Pinout & Package
OP482GPZ is packaged in a 14-lead plastic dual in-line package (PDIP, N-14), with through-hole mounting and industry-standard footprint. Pin 1 is marked by a notch or dot; device orientation follows JEDEC MS-001 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives load directly; capable of ±13.5 V swing into 10 kΩ |
| 2 (–IN A) | Inverting input A | High-impedance JFET node; bias current ≤100 pA enables precision integrators |
| 3 (+IN A) | Non-inverting input A | Supports common-mode voltages up to V+, enabling high-side shunt monitoring |
| 4 (V–) | Negative supply rail | Accepts −4.5 V to −18 V; must be decoupled locally for noise-sensitive applications |
| 5 (+IN B) | Non-inverting input B | Independent channel input; identical specs to Channel A |
| 6 (–IN B) | Inverting input B | Matches Channel A's bias and offset characteristics for matched-pair filtering |
| 7 (OUT B) | Amplifier B output | Electrically isolated from OUT A; supports dual-path signal processing |
| 8 (V+) | Positive supply rail | Accepts +4.5 V to +18 V; powers all four amplifiers simultaneously |
| 9 (OUT C) | Amplifier C output | Third independent output; enables three-stage active filter or multi-sensor conditioning |
| 10 (–IN C) | Inverting input C | Full-spec JFET input; usable in summing junctions with <50 pA mismatch |
| 11 (+IN C) | Non-inverting input C | Same VCM range as other channels; supports rail-referenced reference buffering |
| 12 (V–) | Shared negative supply | Common return for all four amplifiers; requires low-impedance ground path |
| 13 (+IN D) | Non-inverting input D | Fourth channel input; enables quad-channel data acquisition or feedback control |
| 14 (–IN D) | Inverting input D | Matched to other inputs; supports precision differential-to-single-ended conversion |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | Ensures ≤100 pA input bias current at 25°C and ≤500 pA over −40°C to +85°C, preserving accuracy in high-Z sensor nodes |
| Rail-inclusive common-mode range | Operates with inputs up to V+, eliminating need for external level-shifters in high-side current sensing applications |
| Unity-gain stability | Guaranteed stable at gain = 1 without external compensation, simplifying active filter and buffer designs |
| Low power consumption | 250 µA/amplifier max enables four-channel operation under 1 mA - critical for extended battery life |
| Fast settling time | 1.6 µs to 0.01% supports high-throughput data acquisition and real-time control loops |
Applications
| High-Side Current Monitoring | Active Filter Front-End |
|---|---|
|
Use Scenario: Measuring load current in a +15 V power rail using a 0.1 Ω sense resistor. IC Role / Device Role / Timing Role: OP482GPZ buffers and amplifies the shunt voltage with rail-to-rail input capability, rejecting common-mode noise. Use Value: Enables accurate current limiting without ground-referenced measurement errors or additional level-shifting circuitry. |
Use Scenario: Implementing a 4th-order Butterworth low-pass filter for anti-aliasing before a 100 kSPS ADC. IC Role / Device Role / Timing Role: OP482GPZ serves as dual biquad stage amplifier with 4 MHz GBP and 9 V/µs slew rate. Use Value: Maintains phase linearity and <0.1 dB passband ripple while rejecting >40 dB of out-of-band noise at Nyquist. |
| Portable Medical Instrumentation | Programmable State-Variable Filter |
|
Use Scenario: Signal conditioning for ECG electrode inputs in a handheld diagnostic device powered by two AA cells. IC Role / Device Role / Timing Role: OP482GPZ provides low-noise, low-power amplification and high-pass filtering of biopotential signals. Use Value: Achieves 36 nV/√Hz input noise and <1 mA total supply current, extending battery runtime beyond 24 hours. |
Use Scenario: Digitally tunable band-pass filter for geophysical signal analysis, with cutoff frequency and Q controlled via DACs. IC Role / Device Role / Timing Role: OP482GPZ implements integrator, summer, and amplifier functions in a quad topology. Use Value: Leverages matched quad channels to minimize component count and inter-channel drift in programmable analog filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP482GSZ | Same electrical specs; SOIC-14 package (R-14) instead of PDIP (N-14); RoHS-compliant lead finish | Better thermal performance (θJA = 112°C/W vs. 83°C/W) and smaller PCB footprint; not suitable for through-hole prototyping | Select OP482GSZ for volume production on SMT lines where board space and thermal management are priorities. |
| TL074CDR | Higher supply current (2.8 mA/amplifier), lower slew rate (13 V/µs but higher noise: 18 nV/√Hz), no guaranteed V+ input range | Not suitable for high-side sensing or ultra-low-power systems; acceptable only in AC-coupled, non-rail-referenced designs | Choose TL074CDR only when cost is primary constraint and power/noise/sensing requirements are relaxed. |
Compared with OP482GPZ, OP482GSZ offers superior thermal efficiency and surface-mount compatibility, while TL074CDR trades precision and power efficiency for legacy availability and lower unit cost - making OP482GPZ the optimal choice for new designs requiring rail-inclusive input range and sub-1 mA total quiescent current.
Availability
OP482GPZ is available at Aetrix Electronics and suitable for high-side current monitoring, active filter design, portable medical instrumentation, and programmable analog signal processing requiring stable component supply and long-term industrial temperature support.
Supply support for OP482GPZ 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 OP482GPZ belongs to Analog Devices' precision JFET op amp product line, engineered specifically for low-power, high-speed signal conditioning in battery-operated and high-accuracy measurement systems.
FAQ
What is the maximum supply voltage for OP482GPZ?
The OP482GPZ supports a supply voltage range of ±4.5 V to ±18 V, with absolute maximum ratings of ±18 V on both V+ and V– pins. Operation beyond ±18 V risks permanent damage. The device maintains specified performance across this full range, including 4 MHz gain bandwidth and 9 V/µs slew rate at ±15 V.
Does OP482GPZ support rail-to-rail input?
OP482GPZ does not support rail-to-rail input - its common-mode input range extends from −11 V to +15 V, which includes the positive supply rail (V+) but stops 1.5 V short of the negative rail (V–). This "V+ inclusive" range enables high-side sensing but requires V– ≥ −11 V for full specification compliance.
Can OP482GPZ drive capacitive loads directly?
OP482GPZ is unity-gain stable but exhibits increasing overshoot with capacitive loads >100 pF. Figure 27 shows 70% overshoot at 500 pF. For loads >100 pF, isolate with a series resistor (e.g., 100 Ω) or use a dedicated buffer stage to maintain stability and settling performance.
What is the typical input bias current of OP482GPZ at 85°C?
Per Table 1 footnote 1, input bias current is characterized at TJ = 85°C and guaranteed ≤500 pA over temperature. Typical bias current at 85°C is ~100 pA - consistent with JFET process behavior - ensuring minimal offset drift in high-impedance transducer interfaces across the full operating range.
Is OP482GPZ pin-compatible with other quad op amps like LM324?
No, OP482GPZ uses a non-standard pinout optimized for dual-supply JFET operation (e.g., V+ on Pin 8, V– on Pins 4 and 12), unlike LM324's single-supply layout (V+ on Pin 4, V–/GND on Pin 11). Direct replacement would require PCB redesign; consult the OP482GPZ pin diagram (Figure 3) before integration.
OP482GPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 9V/µs
- Gain Bandwidth Product:
- 4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 210µA (x4 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
OP482GPZ FAQ
1.How can I place an order for OP482GPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for OP482GPZ 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 OP482GPZ reliable?
The price and inventory of OP482GPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP482GPZ is usually 5 days.
3.What payment methods are accepted for OP482GPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP482GPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP482GPZ?
OP482GPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP482GPZ 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 OP482GPZ?
For technical support, including OP482GPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP482GPZ requirements.
6.How does Aetrix verify that OP482GPZ is sourced from the original manufacturer or authorized distributors?
All OP482GPZ 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 OP482GPZ meets industry standards.
7.What is the process for return or replacement of OP482GPZ?
All OP482GPZ units undergo pre-shipment inspection (PSI). If there is an issue with OP482GPZ, 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 OP482GPZ part is unused and in its original packaging.
Return procedure for OP482GPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OP482GPZ Tags
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