My Inquiry
My Account
Texas Instruments OP27CJGB
- Part No.:
- OP27CJGB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
OP27CJGB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,005
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OP27CJGB from Texas Instruments is a low-noise, high-speed precision operational amplifier in an 8-pin ceramic DIP (JG) package, rated for −55°C to 125°C operation. It delivers 100 μV max input offset voltage, 3.8 nV/√Hz input voltage noise at 1 kHz, 2.8 V/μs slew rate, and unity-gain stability - optimized for precision analog front-ends in aerospace, test equipment, and instrumentation.
For engineers reviewing the OP27CJGB datasheet, OP27CJGB pinout, OP27CJGB application, or OP27CJGB equivalent, this page provides verified specifications, military-grade thermal performance, JG-package terminal mapping, and validated alternatives for low-noise amplifier design where long-term drift (<0.4 μV/mo), wide common-mode range (±10.5 V), and 5 MHz gain-bandwidth are critical selection criteria.
Technical Context
The OP27CJGB uses a bipolar input stage with internal trimming for precision DC performance and features a 2.7 Hz 1/f noise corner, enabling ultra-low noise across both audio and sub-audio bands. Its fully compensated architecture ensures stable unity-gain operation without external compensation components.
It supports rail-to-rail output swing into ≥2 kΩ loads (±11.5 V at ±15 V supplies), maintains CMRR ≥100 dB up to 10 kHz, and achieves supply voltage rejection ≥94 dB - making it suitable for high-dynamic-range signal conditioning in noisy power environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 100 μV max at 25°C - enables ≤0.1% error in 100 mV full-scale sensor interfaces without calibration |
| Input Voltage Noise | 3.8 nV/√Hz at 1 kHz - supports <100 nV RMS noise in 10 kHz bandwidth applications |
| Slew Rate | 2.8 V/μs - allows clean 10 Vpp signals up to ~450 kHz in unity-gain buffer configurations |
| Gain-Bandwidth Product | 5 MHz - supports stable closed-loop gain of 10 up to 500 kHz |
| Common-Mode Input Range | ±10.5 V at full temperature range - accommodates ±12 V input signals with margin in industrial systems |
| Supply Voltage Range | ±4 V to ±22 V - compatible with legacy ±15 V rails and modern ±5 V to ±18 V supplies |
| Operating Temperature | −55°C to 125°C - qualified for military, avionics, and downhole oil & gas electronics |
Pinout & Package
Ceramic Dual-In-Line Package (JG), 8-pin, hermetically sealable, MIL-STD-1835 compliant, 0.300" wide body, 0.100" lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIO TRIM | Offset null adjustment terminal - connects to 10 kΩ potentiometer wiper for fine-tuning VIO |
| 2 | Inverting Input (IN−) | Differential input node - high-impedance bipolar input with 12 nA max bias current |
| 3 | Non-Inverting Input (IN+) | Differential input node - matched to Pin 2 for optimal CMRR and offset performance |
| 4 | VCC− | Negative supply rail - must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 5 | VIO TRIM | Second offset null terminal - completes trim network with Pin 1 |
| 6 | Output (OUT) | Class-A output stage - drives ≥2 kΩ loads to ±11.5 V with <0.1% THD+N |
| 7 | VCC+ | Positive supply rail - requires local 0.1 μF ceramic + 10 μF tantalum decoupling |
| 8 | No Connect (NC) | Internally unconnected - no electrical function; must remain floating |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 1/f noise corner | 2.7 Hz - preserves low-frequency SNR in seismic, ECG, and precision weigh-scale amplifiers |
| Long-term offset drift | 0.4 μV/month - reduces recalibration frequency in metrology and calibration standards equipment |
| High CMRR at DC | 120 dB typical at 25°C - rejects common-mode interference in bridge sensor readouts |
| Thermal stability | 0.6 μV/°C max tempco - limits drift-induced error to <7.5 μV over −55°C to 125°C range |
| Unity-gain stable | No external compensation required - simplifies layout and eliminates stability tuning in gain-of-1 buffers |
Applications
| Strain Gauge Signal Conditioning | Low-Frequency Spectrum Analyzer Front-End |
|---|---|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from load cells in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier core with 100 μV max offset and 0.4 μV/mo drift. Use Value: Enables 16-bit effective resolution without auto-zeroing circuitry, reducing BOM count and board area. | Use Scenario: Pre-amplifying weak RF detector outputs in 1 Hz–100 kHz spectrum analyzers used for EMC pre-compliance testing. IC Role / Device Role / Timing Role: Low-noise, low-drift gain stage preceding ADC sampling at 200 kSPS. Use Value: 3.8 nV/√Hz noise floor and 2.7 Hz 1/f corner ensure accurate amplitude measurement down to 10 Hz without baseline correction. |
| Avionics Sensor Interface | Calibration Reference Amplifier |
Use Scenario: Conditioning thermocouple (Type S) outputs in flight control computers operating across −55°C to 125°C ambient. IC Role / Device Role / Timing Role: Cold-junction compensation amplifier with guaranteed operation at extreme temperatures. Use Value: ±10.5 V common-mode range and 120 dB CMRR reject engine vibration-induced common-mode transients. | Use Scenario: Fixed-gain buffer in automated test equipment (ATE) reference voltage distribution networks. IC Role / Device Role / Timing Role: Zero-drift-stable gain block maintaining accuracy over 1000-hour burn-in cycles. Use Value: 0.4 μV/mo long-term drift ensures <1 ppm gain error accumulation over 6 months of continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27AJGB | 25 μV max input offset voltage (vs. 100 μV), same noise, same package | Better DC accuracy required in high-resolution data acquisition | Select OP27AJGB when initial offset error must be minimized without trimming |
| LM108AJ/883 | Higher 10 nV/√Hz noise, lower 0.6 V/μs slew rate, but wider −55°C to 125°C qualification | Legacy designs requiring MIL-PRF-38535 Class B compliance with less stringent noise requirements | Choose LM108AJ/883 only if OP27CJGB's noise or speed exceeds system needs and legacy sourcing is mandatory |
Compared with OP27AJGB, OP27CJGB trades 75 μV higher initial offset for identical noise, speed, and thermal robustness at lower cost; versus LM108AJ/883, OP27CJGB delivers 2.7× lower noise and 4.7× faster slew rate while maintaining full military temperature rating - making it superior for modern high-fidelity analog signal chains.
Availability
OP27CJGB is available at Aetrix Electronics and suitable for aerospace avionics, industrial process control, and precision test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for OP27CJGB 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
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with deep expertise in precision amplifiers and high-reliability components.
The OP27 series was designed specifically for military, aerospace, and instrumentation applications demanding low noise, wide temperature operation, and long-term DC stability - directly replacing ADI, PMI, and LTC OP27 variants in socket-compatible deployments.
FAQ
What is the maximum operating temperature range for OP27CJGB?
The OP27CJGB is characterized for operation from −55°C to 125°C, meeting full military temperature range requirements. This specification is guaranteed per the datasheet's "Recommended Operating Conditions" table and validated across all electrical parameters including input offset voltage, CMRR, and output swing - making OP27CJGB suitable for under-hood automotive, downhole drilling, and avionics applications where ambient extremes are routine.
Does OP27CJGB require external compensation for unity-gain stability?
No, OP27CJGB is internally compensated for unity-gain stability. The datasheet explicitly states "The OP27 series is compensated for unity gain," and Figure 11 confirms phase margin remains ≥70° at unity gain. This eliminates the need for external capacitors or feedback networks in voltage-follower or gain-of-1 configurations - simplifying design and improving reliability in OP27CJGB-based buffers.
Can OP27CJGB replace OP07 or OP05 in existing sockets?
Yes, OP27CJGB can be inserted directly into OP07, OP05, μA725, and SE5534 sockets per the "Application Information" section of the datasheet. No external compensation or nulling component removal is required. However, due to its higher slew rate (2.8 V/μs vs. OP07's 0.3 V/μs), layout parasitics may require review in high-frequency feedback paths to avoid unintended oscillation.
What is the purpose of Pins 1 and 5 on OP27CJGB?
Pins 1 and 5 on OP27CJGB are VIO TRIM terminals used together with an external 10 kΩ potentiometer to adjust input offset voltage. As shown in Figure 28 of the datasheet, connecting the potentiometer wiper to Pin 1 and its ends to Pins 1 and 5 allows trimming VIO over approximately ±2.5 mV - preserving the device's inherent temperature coefficient unless adjusted beyond zero.
Is OP27CJGB RoHS compliant?
OP27CJGB is not RoHS compliant - it is a legacy ceramic DIP (JG) package manufactured under MIL-PRF-38535 and contains lead. The TI Package Option Addendum lists its eco plan as "TBD" and notes "N/A for Pkg Type" under RoHS status. For RoHS-compliant alternatives, engineers should evaluate surface-mount variants like OP27GS or consult TI's current-generation precision op-amps.
OP27CJGB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 2.8V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 30 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CDIP
OP27CJGB FAQ
1.How can I place an order for OP27CJGB through Aetrix?
Please submit a Request for Quotation (RFQ) for OP27CJGB 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 OP27CJGB reliable?
The price and inventory of OP27CJGB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP27CJGB is usually 5 days.
3.What payment methods are accepted for OP27CJGB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP27CJGB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP27CJGB?
OP27CJGB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP27CJGB 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 OP27CJGB?
For technical support, including OP27CJGB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP27CJGB requirements.
6.How does Aetrix verify that OP27CJGB is sourced from the original manufacturer or authorized distributors?
All OP27CJGB 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 OP27CJGB meets industry standards.
7.What is the process for return or replacement of OP27CJGB?
All OP27CJGB units undergo pre-shipment inspection (PSI). If there is an issue with OP27CJGB, 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 OP27CJGB part is unused and in its original packaging.
Return procedure for OP27CJGB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OP27CJGB 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…
