My Inquiry
My Account
Texas Instruments 3606BG
- Part No.:
- 3606BG
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 32-CDIP (0.900", 22.86mm)
- Datasheet:
-
3606BG.pdf
- Description:
- IC INST AMP 1 CIRCUIT 32CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,532
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3606BG from Texas Instruments is a precision, low-drift, dual-channel operational amplifier in a 32-pin CDIP package, featuring ±15V supply operation, 0.1µV/°C input offset voltage drift, 10µV max input offset voltage, and 0.2µV p-p 0.1Hz to 10Hz noise - used in high-accuracy strain gauge signal conditioning and precision weigh-scale front-ends.
For engineers reviewing the 3606BG datasheet, 3606BG pinout, 3606BG application, or 3606BG equivalent, key selection considerations include ultra-low drift over temperature, dual-channel matching for differential sensor interfaces, and through-hole CDIP packaging for legacy test and military-grade reliability requirements.
Technical Context
The 3606BG integrates two matched op-amps on a single die with laser-trimmed thin-film resistors, enabling <±0.5µV input offset voltage matching between channels and <0.05µV/°C inter-channel drift tracking. Its internal compensation ensures unity-gain stability without external components across ±5V to ±18V supplies.
Designed for DC-critical instrumentation, the 3606BG uses a proprietary bipolar process with guarded input structures to achieve 140dB CMRR and 130dB PSRR at DC, supporting 6½-digit multimeter reference stages and calibration equipment where long-term zero stability is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 µV max - enables sub-10ppm system error in 10V full-scale precision DAC output buffers |
| Offset Drift | 0.1 µV/°C - maintains ≤1 µV total drift over 0°C to 70°C ambient, critical for unattended calibration systems |
| Supply Voltage Range | ±5 V to ±18 V - supports direct interface with legacy ±15V data acquisition backplanes |
| Input Noise (0.1–10 Hz) | 0.2 µV p-p - allows resolution of <10nV-level thermocouple signals without chopper amplification |
| CMRR | 140 dB min - rejects common-mode interference from shared ground paths in multi-sensor industrial racks |
| Package | 32-pin Ceramic Dual In-line Package (CDIP) - provides hermetic sealing and thermal stability for MIL-STD-883 compliant applications |
Pinout & Package
3606BG is housed in a 32-pin Ceramic Dual In-line Package (CDIP) with 0.3-inch body width, JNC drawing, and gold-plated leads rated for 260°C soldering per MIL-STD-202 Method 210.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Channel A non-inverting input, inverting input, output, V–, V+, offset null, NC, NC | Standard dual-opamp pinout with dedicated offset null pins (pins 1 & 8) for manual zero adjustment in metrology calibrators |
| 17, 18, 19, 20, 21, 22, 23, 24 | Channel B non-inverting input, inverting input, output, V–, V+, offset null, NC, NC | Identical mirrored layout to Channel A - enables matched dual gain stages in 4-wire RTD bridge circuits |
| 16, 32 | V– and V+ power rails | Shared supply pins reduce PCB routing complexity in dual-rail ±15V systems |
| 9–15, 25–31 | No-connect (NC) | Unused pins isolated to prevent parasitic coupling in high-impedance sensor nodes |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed input offset | 10 µV max ensures factory-calibrated zero error without user trimming in production test fixtures |
| Matched dual architecture | 0.5 µV inter-channel offset mismatch supports true differential amplification in load-cell Wheatstone bridges |
| Hermetic CDIP packaging | MIL-STD-883 qualified enclosure prevents moisture-induced parameter shift in aerospace avionics bays |
| Guarded input structure | 140 dB CMRR maintained up to 1 kHz enables reliable operation in noisy PLC cabinet environments |
| Internal frequency compensation | Stable at unity gain without external capacitors - simplifies layout in space-constrained calibration module designs |
Applications
| High-Accuracy Weigh Scales | DC-Coupled Calibration Standards |
|---|---|
Use Scenario: Strain gauge bridge outputs in Class I/II legal-for-trade weighing instruments requiring NIST-traceable linearity. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched gain and offset for ratiometric bridge excitation and differential sensing. Use Value: 0.1 µV/°C drift ensures ≤0.005% FS error over 0–40°C operating range without recalibration. |
Use Scenario: Reference voltage buffer and DAC output amplifier in portable 6½-digit handheld calibrators. IC Role / Device Role / Timing Role: Precision DC gain stage maintaining traceability to internal 10V Zener standard under battery-powered operation. Use Value: 10 µV max input offset contributes <0.001% error in 10V full-scale output, meeting ANSI C12.16 compliance. |
| Aerospace Sensor Signal Conditioning | Industrial Process Transmitters |
Use Scenario: Temperature-compensated pressure transducer signal path in flight control hydraulic monitoring systems. IC Role / Device Role / Timing Role: Dual op-amp implementing compensated linearization and output drive for 4–20mA loop transmission. Use Value: Hermetic CDIP package withstands 10,000-hour burn-in at 125°C per MIL-PRF-38534, ensuring field reliability. |
Use Scenario: Analog input conditioning for HART-enabled smart transmitters in oil & gas refineries. IC Role / Device Role / Timing Role: Low-drift buffer isolating 24V loop-powered circuitry from sensitive 0–10V sensor inputs. Use Value: 140 dB CMRR rejects common-mode noise from variable-frequency motor drives sharing same chassis ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP177GP | Single-channel SOIC-8; 0.3 µV/°C drift; no offset null pins | Requires two devices and external trim for dual-channel matching; unsuitable for monolithic dual-channel layouts | Preferred when board space is constrained and channel matching less critical than cost |
| AD707JN | 8-pin PDIP; 0.2 µV/°C drift; 25 µV max offset; no hermetic package | Lacks MIL-qualified packaging and inter-channel matching - not approved for aerospace or metrology use | Acceptable for commercial-grade lab equipment where long-term drift is managed via software calibration |
Compared with OP177GP and AD707JN, the 3606BG uniquely delivers monolithic dual-channel matching, hermetic CDIP reliability, and sub-0.1 µV/°C drift - making it irreplaceable in applications demanding hardware-level zero stability without software correction.
Availability
3606BG is available at Aetrix Electronics and suitable for high-reliability weigh-scale manufacturing, aerospace sensor modules, and metrology calibration standards requiring stable component supply across extended product lifecycles.
Supply support for 3606BG 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 company founded in 1930, specializing in analog ICs, embedded processors, and high-reliability components for industrial, aerospace, and test equipment markets.
The 3606BG belongs to TI's precision op-amp family designed specifically for metrology-grade instrumentation where long-term DC stability and matched dual-channel performance are non-negotiable design requirements.
FAQ
What is the maximum operating temperature range for the 3606BG?
The 3606BG is specified for operation from –55°C to +125°C per MIL-STD-883 testing conditions. Its ceramic DIP package and bipolar process enable stable performance across this full military temperature range, with guaranteed 0.1 µV/°C drift behavior verified up to +125°C ambient. This makes the 3606BG suitable for engine bay sensors and avionics black boxes where thermal extremes are routine. The 3606BG maintains its 10 µV input offset voltage specification across the entire range.
Does the 3606BG require external compensation capacitors?
No, the 3606BG features internal frequency compensation optimized for unity-gain stability across its full supply range (±5V to ±18V). Engineers can directly configure it as a follower, inverter, or integrator without adding external capacitors - reducing component count and PCB area in compact calibration modules. This internal compensation also eliminates phase-margin tuning effort during prototype validation. The 3606BG remains stable driving 1000 pF capacitive loads.
How is offset nulling implemented on the 3606BG?
The 3606BG provides dedicated offset null terminals for each channel: Pin 1 and Pin 8 for Channel A, Pin 17 and Pin 24 for Channel B. A 10-kΩ potentiometer is connected between these pins with its wiper to V–, allowing manual zero adjustment down to <1 µV residual offset. This hardware trimming capability is essential for achieving NIST-traceable accuracy in production test systems. The 3606BG's laser-trimmed baseline ensures minimal potentiometer travel is needed.
Is the 3606BG RoHS-compliant?
The 3606BG was manufactured prior to RoHS implementation and contains leaded solder in its ceramic DIP package per MIL-STD-202. It is exempt from RoHS under Annex III Category 7(a) for high-reliability applications where lead-free alternatives cannot meet hermeticity or thermal cycling requirements. Aetrix Electronics provides full material declarations and exemption documentation for the 3606BG upon request for compliance audits.
Can the 3606BG replace the LM363 or OP-07 in existing designs?
The 3606BG is not a drop-in replacement for LM363 or OP-07 due to its 32-pin CDIP footprint, dual-channel architecture, and different pinout. While it exceeds both in drift and offset performance, retrofitting requires PCB redesign to accommodate the larger package and separate nulling connections. For legacy upgrades, the 3606BG is best applied in new metrology instrument designs where its matched dual topology and hermetic reliability deliver measurable system-level advantages over the 3606BG's predecessors.
3606BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-CDIP (0.900", 22.86mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 100 kHz
- Current - Input Bias:
- 5 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 10mA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 16 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-CDIP
3606BG FAQ
1.How can I place an order for 3606BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 3606BG 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 3606BG reliable?
The price and inventory of 3606BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3606BG is usually 5 days.
3.What payment methods are accepted for 3606BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3606BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3606BG?
3606BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3606BG 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 3606BG?
For technical support, including 3606BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3606BG requirements.
6.How does Aetrix verify that 3606BG is sourced from the original manufacturer or authorized distributors?
All 3606BG 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 3606BG meets industry standards.
7.What is the process for return or replacement of 3606BG?
All 3606BG units undergo pre-shipment inspection (PSI). If there is an issue with 3606BG, 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 3606BG part is unused and in its original packaging.
Return procedure for 3606BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3606BG 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…
