My Inquiry
My Account
Analog Devices Inc. OP275GS-REEL7
- Part No.:
- OP275GS-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP275GS-REEL7.pdf
- Description:
- IC AUDIO 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,941
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OP275GS-REEL7 from Analog Devices is a dual bipolar/JFET audio operational amplifier in an 8-lead SOIC package, delivering 22 V/µs slew rate, 9 MHz gain bandwidth, 6 nV/√Hz voltage noise density at 1 kHz, 0.0006% THD+N at 3 V rms, and ±4.5 V to ±22 V supply operation. It serves as a high-fidelity signal conditioning and amplification IC in professional audio front ends and precision analog signal chains.
For engineers reviewing the OP275GS-REEL7 datasheet, OP275GS-REEL7 pinout, OP275GS-REEL7 application, or OP275GS-REEL7 equivalent, key selection criteria include low-noise audio performance, unity-gain stability with capacitive loads up to 1000 pF, differential line driver capability, and guaranteed operation across –40°C to +85°C.
Technical Context
The OP275GS-REEL7 implements a proprietary Butler Amplifier front end combining bipolar transistors for low offset and JFETs for high slew rate and sonic fidelity. Its input stage features ±7.5 V differential input clamping and ±10.5 V common-mode input range, enabling robust operation in industrial sensor interfaces.
It achieves 62° phase margin and stable unity-gain operation without external compensation, while maintaining flat noise density below 7 nV/√Hz from 30 Hz to 1 kHz and a 1/f corner below 6 Hz - critical for wideband audio and precision DC-coupled applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±4.5 V to ±22 V - supports both low-voltage portable audio and high-headroom studio-grade rails |
| Slew Rate | 22 V/µs - enables full-power bandwidth of 130 kHz into 2.5 kΩ, minimizing slew-induced distortion in fast transients |
| Gain Bandwidth Product | 9 MHz - ensures stable closed-loop gain ≥+1 with >62° phase margin and minimal peaking |
| Voltage Noise Density | 6 nV/√Hz @ 1 kHz - meets professional audio requirements (e.g., microphone preamp input stage) |
| THD + Noise | 0.0006% @ 3 V rms, 1 kHz, 2 kΩ load - qualifies for Class A audio signal paths and high-resolution DAC output buffering |
| Input Offset Voltage | 1 mV max (–40°C to +85°C) - allows direct DC coupling in summing amps and active filters without trimming |
| Output Swing | ±13.5 V @ RL = 2 kΩ, ±15 V supplies - delivers 10 V rms into 600 Ω with <0.01% THD when supplied at ±18 V |
Pinout & Package
OP275GS-REEL7 is housed in an 8-lead narrow-body SOIC (R-8) package per JEDEC MS-012AA, with 1.27 mm lead pitch, 5.00 mm × 4.00 mm body, and coplanarity ≤0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads down to 600 Ω with <0.001% THD+N at 10 V rms |
| 2 | –IN A | Inverting input of Amp A - virtual ground node in inverting configurations; requires balanced source impedance ≤2 kΩ in noninverting use |
| 3 | +IN A | Noninverting input of Amp A - common-mode range –10.5 V to +10.5 V; clamped to ±7.5 V differential |
| 4 | V– | Negative supply rail - must be decoupled with 0.1 µF ceramic + 10 µF electrolytic per amplifier section |
| 5 | OUT B | Amplifier B output - independent channel; identical AC/DC specs to OUT A |
| 6 | –IN B | Inverting input of Amp B - electrically isolated from Amp A; shares no internal nodes |
| 7 | +IN B | Noninverting input of Amp B - supports differential line driver topologies with matched gain-setting resistors |
| 8 | V+ | Positive supply rail - enables rail-to-rail output swing within ±13.9 V under ±15 V supplies |
Key Features
| Feature | Design Value |
|---|---|
| Butler Amplifier Front End | Combines bipolar accuracy (1 mV VOS) and JFET speed (22 V/µs) - eliminates trade-off between low noise and high slew rate |
| Low 1/f Noise Corner | <6 Hz - ensures flat noise floor across full 20 Hz–20 kHz audio band without low-frequency rise |
| Capacitive Load Drive | Stable with >1000 pF - eliminates need for isolation resistors in ADC driver or cable-driving applications |
| Short-Circuit Protection | Internal 30 Ω series resistor limits output current to ±40 mA/+90 mA - protects against ground shorts without latch-up |
| Unity-Gain Stable | No external compensation required - simplifies PCB layout for gain-of-1 buffers and active filters |
Applications
| Professional Audio Preamp | Differential Line Driver |
|---|---|
Use Scenario: Low-noise microphone preamplification in broadcast mixing consoles requiring 60 dB gain and <–110 dBu EIN. IC Role / Device Role / Timing Role: First-stage gain block with DC-coupled input and 22 V/µs slew rate to preserve transient integrity. Use Value: 6 nV/√Hz input noise and 0.0006% THD+N enable 24-bit dynamic range preservation without post-amplification filtering. | Use Scenario: Balanced analog transmission over 100 m twisted-pair cable in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Dual-opamp differential driver (Figure 17) generating 30 V p-p output with common-mode rejection >80 dB. Use Value: Symmetric ±22 V/µs slew rate prevents differential skew; SOIC-8 footprint allows compact dual-channel layout. |
| Active Audio Filter | High-Speed Integrator |
Use Scenario: 40 kHz linear-phase low-pass filter in digital audio workstation (DAW) output reconstruction path. IC Role / Device Role / Timing Role: Gyrator-based inductance simulator (A2/A3) and buffer/bias source (A1/A4) in 3-pole topology. Use Value: Matched ac characteristics across dual sections ensure pole-zero alignment; 9 MHz GBP maintains filter Q without peaking. | Use Scenario: Precision analog integrator in laser pulse-width control loop requiring sub-µs recovery from saturation. IC Role / Device Role / Timing Role: Unity-gain integrator with 1.5 µs negative overload recovery and 1.2 ms positive recovery (Figure 10). Use Value: Fast recovery time prevents integral windup during fault conditions; ±13.5 V swing accommodates large error signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual audio op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP270GSZ-REEL7 | Lower slew rate (2.5 V/µs), higher VOS (250 µV typ), lower noise (3.5 nV/√Hz), dual precision op-amp | Better dc accuracy and noise for DC-coupled instrumentation; unsuitable for >20 kHz audio or fast settling | Select OP275GS-REEL7 for audio bandwidth and slew-critical applications; OP270GSZ-REEL7 where ultra-low offset dominates |
| AD827JRZ-REEL7 | Higher slew rate (300 V/µs), wider GBW (50 MHz), higher supply current (12 mA), JFET-input dual op-amp | Superior for video or ultrasonic applications; higher distortion (0.002% THD+N) and less optimized for 20–20 kHz fidelity | Choose OP275GS-REEL7 when audio spectral purity and low power (5 mA) are mandatory; AD827JRZ-REEL7 for wideband signal acquisition |
Compared with OP270GSZ-REEL7 and AD827JRZ-REEL7, OP275GS-REEL7 uniquely balances 22 V/µs slew rate, 6 nV/√Hz noise, and 0.0006% THD+N within 5 mA supply current - making it the only dual op-amp qualified for high-fidelity, low-power, unity-gain-stable audio signal chains.
Availability
OP275GS-REEL7 is available at Aetrix Electronics and suitable for professional audio equipment, industrial analog I/O modules, precision test instrumentation, and medical signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for OP275GS-REEL7 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, headquartered in Norwood, MA.
The OP275GS-REEL7 belongs to Analog Devices' precision audio op-amp product line, engineered specifically for applications demanding low THD+N, wide bandwidth, and unity-gain stability in surface-mount form - addressing the gap between general-purpose and ultra-high-end audio amplifiers.
FAQ
What is the operating temperature range for OP275GS-REEL7?
The OP275GS-REEL7 is specified for continuous operation from –40°C to +85°C, matching the extended industrial temperature grade. This range is confirmed in the Ordering Guide and Absolute Maximum Ratings tables of the official Analog Devices datasheet Rev. C, and applies to all electrical specifications unless otherwise noted.
Does OP275GS-REEL7 require external compensation for unity-gain stability?
No, OP275GS-REEL7 is unity-gain stable without external compensation. Its internal compensation ensures >62° phase margin and stable operation with closed-loop gains ≥+1, including capacitive loads up to 1000 pF - verified in TPC 3 and TPC 5 of the datasheet.
Can OP275GS-REEL7 drive a 600 Ω load with low distortion?
Yes, OP275GS-REEL7 drives 600 Ω loads with THD+N <0.001% at 10 V rms output when supplied with ±18 V or higher. At ±15 V supplies, distortion rises above clipping thresholds; Figure 4 and Figure 5 in the datasheet confirm 0.0007% THD+N at ±20 V with 10 V rms into 600 Ω.
What is the maximum differential input voltage for OP275GS-REEL7?
The maximum differential input voltage for OP275GS-REEL7 is ±7.5 V, enforced by internal Zener clamps across the inputs. Exceeding this risks emitter-base junction breakdown; external series resistors (e.g., 1.4 kΩ per input, Figure 8) are recommended if differential transients exceed ±7.5 V.
Is OP275GS-REEL7 RoHS compliant and lead-free?
OP275GS-REEL7 is not explicitly marked as Pb-free in the provided datasheet Rev. C; however, its ordering variant OP275GSZ-REEL7 is designated with "Z" suffix indicating RoHS-compliant, lead-free construction. For OP275GS-REEL7, standard leaded SOIC packaging applies per JEDEC MS-012AA.
OP275GS-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Audio
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 22V/µs
- Gain Bandwidth Product:
- 9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 4mA
- Current - Output / Channel:
- 90 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OP275GS-REEL7 FAQ
1.How can I place an order for OP275GS-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for OP275GS-REEL7 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 OP275GS-REEL7 reliable?
The price and inventory of OP275GS-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP275GS-REEL7 is usually 5 days.
3.What payment methods are accepted for OP275GS-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP275GS-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP275GS-REEL7?
OP275GS-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP275GS-REEL7 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 OP275GS-REEL7?
For technical support, including OP275GS-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP275GS-REEL7 requirements.
6.How does Aetrix verify that OP275GS-REEL7 is sourced from the original manufacturer or authorized distributors?
All OP275GS-REEL7 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 OP275GS-REEL7 meets industry standards.
7.What is the process for return or replacement of OP275GS-REEL7?
All OP275GS-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with OP275GS-REEL7, 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 OP275GS-REEL7 part is unused and in its original packaging.
Return procedure for OP275GS-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OP275GS-REEL7 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…
