Analog Devices Inc. OP64GS
- Part No.:
- OP64GS
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
OP64GS.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:

- Shipping:

Inventory:1,522
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Product details
Overview
OP64GS from PMI (Precision Monolithics, Inc.) is a high-speed, wide-bandwidth operational amplifier in an 8-pin plastic DIP package, featuring 130 V/µs slew rate, 80 MHz gain-bandwidth product (Av = +5), and ±80 mA output current. It delivers 100 ns settling time to 0.1% for ±10 V step, 8 nV/√Hz input voltage noise, and 2.5 mV max input offset voltage over –40°C to +85°C. Used in video line drivers, RF amplifiers, and A/D driver circuits where high output drive and fast transient response are critical.
For engineers reviewing the OP64GS datasheet, OP64GS pinout, OP64GS application, or OP64GS equivalent, key selection considerations include its disable functionality (Pin 8), hermetic vs. plastic packaging trade-offs, industrial temperature range compliance, and compatibility with ±5 V to ±18 V dual supplies - all verified against PMI's original OP-64 family documentation.
Technical Context
The OP64GS implements a three-stage monolithic bipolar architecture optimized for stability at closed-loop gains ≥ +5, with phase margin of 57° and full-power bandwidth of 2.7 MHz. Its internal disable circuitry reduces supply current to 0.75 mA when Pin 8 is pulled low, enabling power-gated operation without external switching.
It features matched input transistors for low offset drift, on-chip nulling terminals (Pins 1 and 5), and robust common-mode rejection (84 dB min) across ±11 V input range. The output stage is designed for direct drive of 75 Ω video loads and 2 kΩ resistive loads, eliminating need for external buffers in terminated line applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 130 V/µs min - enables clean reproduction of fast edges in pulse and video signals without distortion |
| Gain-Bandwidth Product | 80 MHz typ at Av = +5 - supports stable closed-loop designs up to ~16 MHz unity-gain bandwidth |
| Settling Time (0.1%) | 100 ns typ for ±10 V step - meets timing requirements for high-speed data acquisition and DAC buffering |
| Input Offset Voltage | 2.5 mV max over –40°C to +85°C - ensures DC accuracy in precision analog front-ends |
| Output Current | ±80 mA typ - drives 75 Ω video lines or 2 kΩ loads directly, removing need for discrete buffer stages |
| Supply Current | 6.2–8.5 mA max (no load) - balances speed and power efficiency for space-constrained industrial systems |
| Disable Supply Current | 0.75 mA max - reduces system standby power by >90% when amplifier is gated off |
Pinout & Package
OP64GS is supplied in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and standard through-hole footprint. Pin spacing is 0.1 inch, compatible with industry-standard PCB layouts and socketing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Null Input (–) | Connects to wiper of 20 kΩ potentiometer for input offset voltage trimming |
| 2 | Inverting Input (–IN) | Primary signal inversion node; high-impedance, low-bias-current input |
| 3 | Non-Inverting Input (+IN) | High-impedance, low-bias-current input referenced to common-mode range |
| 4 | Negative Supply (V–) | Accepts –5 V to –18 V; must be bypassed with 0.1 µF ceramic + 10 µF electrolytic |
| 5 | Null Input (+) | Connects to one end of 20 kΩ potentiometer for offset adjustment |
| 6 | Output (OUT) | Capable of ±80 mA into 2 kΩ; drives 75 Ω coaxial cables directly |
| 7 | Positive Supply (V+) | Accepts +5 V to +18 V; requires same bypassing as V– |
| 8 | Disable Control | Pulled low (≥250 µA sink) to shut down amplifier; output goes high-Z, ISY drops to 0.75 mA |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Disable Function | Pin 8 control reduces supply current to 0.75 mA and places output in high-impedance state - enables dynamic power management in battery or thermal-limited systems |
| On-Chip Nulling Terminals | Pins 1 and 5 support external 20 kΩ potentiometer for ±4 mV trim range - eliminates need for laser trimming or external calibration circuitry |
| 75 Ω Video Line Drive Capability | Delivers ±1 V into 75 Ω load with <0.018 dB differential gain error at 5 MHz - meets broadcast video fidelity standards without external buffer |
| Low 1/f Noise Corner | Input voltage noise density remains flat at 8 nV/√Hz from 1 kHz onward - preserves SNR in wideband signal chains |
| Stable at Gain ≥ +5 | 57° phase margin and 2.7 MHz full-power bandwidth ensure predictable step response without external compensation |
Applications
| Video Amplifier / Terminated Line Driver | Fast Transimpedance Amplifier |
|---|---|
Use Scenario: Driving 75 Ω coaxial video cable in broadcast equipment or test instrumentation with minimal gain/phase error. IC Role / Device Role / Timing Role: Final-stage video buffer and line driver with integrated termination and disable control. Use Value: Eliminates external buffer and termination resistors; achieves 0.018 dB differential gain error at 5 MHz per Table 1. | Use Scenario: Converting fast photomultiplier tube (PMT) current pulses into voltage signals with sub-100 ns rise time. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier with JFET-input stage for ultra-low input bias current. Use Value: Delivers 2 V/µA transimpedance gain and 100 V/µs slew rate - validated in Figure 9 and 10 with 1 MΩ source impedance. |
| RF Signal Conditioning | A/D Converter Driver |
Use Scenario: Buffering and amplifying IF or baseband signals in communications receivers before ADC sampling. IC Role / Device Role / Timing Role: Wideband gain block with low distortion and fast settling for undersampled RF architectures. Use Value: 100 ns 0.1% settling time and 80 MHz GBW enable accurate digitization of multi-MHz analog waveforms. | Use Scenario: Driving the input of high-resolution SAR or pipeline ADCs requiring low source impedance and fast settling. IC Role / Device Role / Timing Role: Precision output buffer with rail-to-rail swing capability and low output impedance. Use Value: ±11.7 V output swing into 200 Ω load ensures full-scale utilization of 16-bit ADC inputs without clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EL2195CSZ | Higher 220 V/µs slew rate but 3.5 mV max Vos at +25°C; no disable pin; SO-8 only | Lacks shutdown function; not drop-in for disable-controlled systems; better for pure speed-critical apps | Choose EL2195CSZ only if disable functionality is unnecessary and higher slew rate justifies loss of DIP package and wider Vos spec |
| HA5195IBZ | Same 130 V/µs slew rate and 80 MHz GBW; 2.5 mV max Vos; TO-99 or CERDIP only; no disable pin | No Pin 8 disable control; different thermal and mechanical mounting; legacy Intersil part | HA5195IBZ matches core AC specs but requires board redesign for TO-99/CERDIP; use only if disable is unused and package constraints allow |
Compared with EL2195CSZ and HA5195IBZ, OP64GS uniquely combines industrial temperature range, plastic DIP package, and functional disable control - making it the only option among the three suitable for power-gated, through-hole, cost-sensitive industrial designs requiring guaranteed 2.5 mV Vos over –40°C to +85°C.
Availability
OP64GS is available at Aetrix Electronics and suitable for video line driving, RF signal conditioning, and A/D converter driver applications requiring stable component supply across extended industrial temperature environments.
Supply support for OP64GS 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
PMI (Precision Monolithics, Inc.) was a pioneering analog IC design house acquired by Analog Devices in 1990, known for high-performance op amps and data converters.
The OP-64 family - including OP64GS - was engineered for demanding wideband analog signal paths in video, instrumentation, and communications, emphasizing speed, output drive, and DC precision in compact packages.
FAQ
What is the operating temperature range for OP64GS?
The OP64GS is rated for industrial temperature operation from –40°C to +85°C. This range is explicitly confirmed in the "OPERATING TEMPERATURE RANGE" table under the OP-64G row, and applies to both plastic DIP (P-suffix) and SO (S-suffix) packages. It is distinct from the military-grade OP-64A (–55°C to +125°C) and commercial OP-64E/F variants.
Does OP64GS have a disable function, and how is it implemented?
Yes, OP64GS includes a disable function on Pin 8. When Pin 8 is pulled low with ≥250 µA sink current (e.g., via open-collector TTL gate or NPN transistor), the amplifier shuts down: supply current drops to 0.75 mA max, output impedance rises to ~2 kΩ, and output enters high-Z state. This behavior is documented in the "DISABLE AMPLIFIER SHUTDOWN" section and electrical specs table (ISYDIS parameter).
What is the maximum load capacitance OP64GS can drive stably?
OP64GS maintains stability with up to 100 pF capacitive load, as shown in the "SMALL SIGNAL OVERSHOOT vs CAPACITIVE LOAD" plot (Figure). Beyond 100 pF, overshoot increases significantly. For heavier loads (e.g., long cables), external isolation resistor (e.g., 75 Ω series) is recommended - as demonstrated in the Video Amplifier/Terminated Line Driver application (Figure 8).
Can OP64GS be used with single-supply operation?
No, OP64GS is specified and characterized exclusively for dual-supply operation (±5 V to ±18 V). Its input common-mode range is ±11 V, output swing is symmetrical about ground, and disable logic assumes split rails. The datasheet contains no single-supply biasing guidance, no rail-to-rail input/output specs, and no performance data for V– = 0 V configurations.
What is the typical input bias current of OP64GS at +25°C?
The typical input bias current of OP64GS at +25°C is 0.3 µA, with a maximum of 3.5 µA over the full –40°C to +85°C industrial temperature range. This value is listed in the "ELECTRICAL CHARACTERISTICS" table under "OP-64G" column for parameter "Input Bias Current (IB)" with condition VCM = 0 V.
OP64GS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 170V/µs
- Gain Bandwidth Product:
- 80 MHz
- -3db Bandwidth:
- 2.7 MHz
- Current - Input Bias:
- 800 nA
- Voltage - Input Offset:
- 1.2 mV
- Current - Supply:
- 6.2mA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
OP64GS FAQ
1.How can I place an order for OP64GS through Aetrix?
Please submit a Request for Quotation (RFQ) for OP64GS 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 OP64GS reliable?
The price and inventory of OP64GS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP64GS is usually 5 days.
3.What payment methods are accepted for OP64GS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP64GS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP64GS?
OP64GS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP64GS 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 OP64GS?
For technical support, including OP64GS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP64GS requirements.
6.How does Aetrix verify that OP64GS is sourced from the original manufacturer or authorized distributors?
All OP64GS 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 OP64GS meets industry standards.
7.What is the process for return or replacement of OP64GS?
All OP64GS units undergo pre-shipment inspection (PSI). If there is an issue with OP64GS, 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 OP64GS part is unused and in its original packaging.
Return procedure for OP64GS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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