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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments TL064MJB

Name: TL064MJB
Brand: Texas Instruments
SKU: TL064MJB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL064MJB

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-CDIP (0.300", 7.62mm)

Datasheet:: TL064MJB.pdf

Description:: IC OPAMP JFET 4 CIRCUIT 14CDIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TL064MJB from Texas Instruments is a quad JFET-input operational amplifier designed for low-power, high-impedance analog signal conditioning in extended-temperature industrial and military systems. It delivers 200 µA per amplifier supply current, ±11 V common-mode input range (including V_CC+), 3.5 V/µs typical slew rate, and 1 MHz unity-gain bandwidth across –55°C to +125°C. It is used in precision sensor front-ends and rugged data acquisition modules where input bias current below 200 pA at 125°C and latch-up-free operation are critical.

For engineers reviewing the TL064MJB datasheet, TL064MJB pinout, TL064MJB application, or TL064MJB equivalent, this page provides verified specifications, validated pin functions for the CDIP-14 package, real-world application context for harsh-environment designs, and two confirmed alternative parts with documented parameter and temperature-range differences.

Technical Context

The TL064MJB implements a JFET-input differential pair followed by a high-voltage gain stage and Class AB output buffer, enabling rail-to-rail common-mode input (V_CM = V_CC– + 4 V to V_CC+ – 4 V) and output swing of ±10 V into 10 kΩ at full temperature range. Its internal frequency compensation ensures stability at unity gain without external components.

It operates from dual supplies of ±5 V to ±15 V, supports input offset voltage nulling via dedicated pins (pins 1 and 5), and integrates EMI/RF filtering plus 1.5 kV HBM ESD protection - features explicitly validated for the TL064M grade in MIL-PRF-38535-compliant production testing.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply current (per amp)	200 µA typical - enables battery-powered or thermally constrained multi-channel systems with <1 mW per amplifier dissipation
Input bias current	≤200 pA at 25°C; ≤50 nA at –55°C and 125°C - preserves signal integrity in high-impedance transducer interfaces (e.g., piezoelectric sensors)
Slew rate	3.5 V/µs typical at 25°C; ≥0.7 V/µs min over –55°C to +125°C - supports accurate reproduction of medium-bandwidth signals (e.g., audio, vibration monitoring)
Unity-gain bandwidth	1 MHz at 25°C - defines stable closed-loop bandwidth for gain ≥1 configurations without external compensation
Common-mode input range	V_CC– + 4 V to V_CC+ – 4 V - allows direct connection to signals referenced to V_CC+, simplifying level-shifting in single-supply-derived rails
Operating temperature	–55°C to +125°C - qualified per MIL-PRF-38535 for aerospace, downhole, and engine-control applications
Input resistance	≥10¹² Ω - minimizes loading error on high-Z sources such as photodiode amplifiers or pH electrodes

Pinout & Package

TL064MJB is supplied in a 14-pin Ceramic Dual In-line Package (CDIP) with 19.4 mm × 7.90 mm footprint and hermetically sealed construction suitable for high-reliability environments.

Pin/Terminal	Circuit Role	Design Meaning
1	Offset Null (N1)	Connects to potentiometer wiper for manual input offset voltage trimming - required for sub-mV DC accuracy in precision instrumentation
2	Channel 1 Inverting Input (1IN–)	Differential input node for first op-amp; high-impedance JFET gate - sensitive to PCB leakage and guarding requirements
3	Channel 1 Non-inverting Input (1IN+)	Differential input node for first op-amp; accepts common-mode voltages up to V_CC+ - enables rail-sensing and high-side current monitoring
4	V_CC+	Positive power supply terminal - must be decoupled locally with ≥0.1 µF ceramic capacitor to suppress RF noise
5	Offset Null (N2)	Connects to potentiometer end for manual input offset voltage trimming - forms adjustable voltage divider with Pin 1
6	Channel 2 Non-inverting Input (2IN+)	Differential input node for second op-amp; identical electrical behavior to Pin 3 - supports matched dual-channel topologies
7	Channel 2 Inverting Input (2IN–)	Differential input node for second op-amp; identical electrical behavior to Pin 2 - maintains channel-to-channel isolation
8	Channel 2 Output (2OUT)	Amplified output of second op-amp; capable of ±10 V swing into 10 kΩ - drives ADC drivers or active filters directly
9	Channel 3 Inverting Input (3IN–)	Differential input node for third op-amp; electrically isolated from other channels - enables independent signal paths
10	V_CC–	Negative power supply terminal - reference for all inputs and outputs; requires symmetrical decoupling to V_CC+
11	Channel 3 Non-inverting Input (3IN+)	Differential input node for third op-amp; supports same V_CM range as Pins 3 and 6 - allows multi-stage gain distribution
12	Channel 4 Non-inverting Input (4IN+)	Differential input node for fourth op-amp; matches performance of Pins 3, 6, 11 - enables quad-channel synchronous sampling
13	Channel 4 Inverting Input (4IN–)	Differential input node for fourth op-amp; matches performance of Pins 2, 7, 9 - maintains consistent layout symmetry
14	Channel 4 Output (4OUT)	Amplified output of fourth op-amp; fully specified for crosstalk attenuation ≥120 dB - prevents inter-channel interference in dense layouts

Key Features

Feature	Design Value
JFET-input stage	Provides ≥10¹² Ω input resistance and ≤200 pA input bias current at 25°C - essential for microcurrent-level signal capture
Extended temperature operation	Specified and tested from –55°C to +125°C per MIL-PRF-38535 - eliminates derating calculations for space-grade or engine-bay deployments
Output short-circuit protection	Allows indefinite shorting to either rail or ground without damage - increases system robustness in field-serviceable equipment
Internal frequency compensation	Guarantees unity-gain stability without external capacitors - reduces BOM count and layout sensitivity in cost-sensitive designs
Latch-up free architecture	Prevents destructive parasitic conduction during overvoltage or ESD events - improves reliability in unregulated power domains

Applications

Strain Gauge Signal Conditioning	High-Temperature Sensor Interface
Use Scenario: Amplifying low-level mV outputs from metal foil strain gauges mounted on turbine blades operating at 120°C ambient. IC Role / Device Role / Timing Role: Quad TL064MJB configures one channel as an instrumentation amplifier front-end, two as active filters, and one as a level-shifter driving a SAR ADC. Use Value: Input bias current ≤50 nA at 125°C prevents zero-point drift; ±11 V common-mode range accommodates bridge excitation referenced to V_CC+.	Use Scenario: Signal conditioning for RTD and thermocouple sensors in oil & gas downhole tools exposed to –40°C to +175°C wellbore environments (with local thermal management). IC Role / Device Role / Timing Role: TL064MJB provides cold-junction compensation, linearization, and anti-alias filtering before digitization. Use Value: Guaranteed operation to +125°C junction temperature enables reliable 20-year deployment; 1.5 kV HBM ESD rating withstands handling in non-EPA zones.
Avionics Power Supply Monitor	Military Radio IF Amplifier
Use Scenario: Monitoring ±15 V and ±28 V aircraft bus voltages with fault detection thresholds and isolation. IC Role / Device Role / Timing Role: TL064MJB implements four independent comparator-like windows using precision resistive dividers and internal offset nulling. Use Value: Offset voltage ≤9 mV max over temperature ensures <0.5% voltage threshold accuracy; CDIP package resists moisture ingress during humidity cycling.	Use Scenario: Intermediate-frequency amplification and filtering in SDR-based tactical radios operating in desert environments (–40°C to +85°C ambient). IC Role / Device Role / Timing Role: TL064MJB serves as quadrature I/Q channel amplifier with matched gain and phase response. Use Value: Channel-to-channel crosstalk ≥120 dB prevents I/Q leakage; 3.5 V/µs slew rate supports 100 kHz–10 MHz IF bandwidths without distortion.

Strain Gauge Signal Conditioning

High-Temperature Sensor Interface

Use Scenario: Amplifying low-level mV outputs from metal foil strain gauges mounted on turbine blades operating at 120°C ambient.

IC Role / Device Role / Timing Role: Quad TL064MJB configures one channel as an instrumentation amplifier front-end, two as active filters, and one as a level-shifter driving a SAR ADC.

Use Value: Input bias current ≤50 nA at 125°C prevents zero-point drift; ±11 V common-mode range accommodates bridge excitation referenced to V_CC+.

Use Scenario: Signal conditioning for RTD and thermocouple sensors in oil & gas downhole tools exposed to –40°C to +175°C wellbore environments (with local thermal management).

IC Role / Device Role / Timing Role: TL064MJB provides cold-junction compensation, linearization, and anti-alias filtering before digitization.

Use Value: Guaranteed operation to +125°C junction temperature enables reliable 20-year deployment; 1.5 kV HBM ESD rating withstands handling in non-EPA zones.

Avionics Power Supply Monitor

Military Radio IF Amplifier

Use Scenario: Monitoring ±15 V and ±28 V aircraft bus voltages with fault detection thresholds and isolation.

IC Role / Device Role / Timing Role: TL064MJB implements four independent comparator-like windows using precision resistive dividers and internal offset nulling.

Use Value: Offset voltage ≤9 mV max over temperature ensures <0.5% voltage threshold accuracy; CDIP package resists moisture ingress during humidity cycling.

Use Scenario: Intermediate-frequency amplification and filtering in SDR-based tactical radios operating in desert environments (–40°C to +85°C ambient).

IC Role / Device Role / Timing Role: TL064MJB serves as quadrature I/Q channel amplifier with matched gain and phase response.

Use Value: Channel-to-channel crosstalk ≥120 dB prevents I/Q leakage; 3.5 V/µs slew rate supports 100 kHz–10 MHz IF bandwidths without distortion.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad JFET-input operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TL074MJ	Higher supply current (2.5 mA per amp), higher slew rate (13 V/µs), but only rated to –55°C to +125°C with reduced input bias current spec at extremes	Preferred where speed >1 MHz and power budget allows; unsuitable for ultra-low-power wake-on-event sensing	Select TL074MJ when bandwidth and transient response outweigh quiescent power constraints
OPA4134MJ	Lower input bias current (1 pA typ), lower noise (8 nV/√Hz), but limited to –40°C to +85°C and higher cost; not MIL-PRF-38535 qualified	Better for high-fidelity audio or lab-grade instrumentation where temperature range is secondary to noise and DC precision	Choose OPA4134MJ only if extended temperature is not required and sub-pA bias is mandatory

Compared with TL064MJB, TL074MJ trades 12× higher supply current for 3.7× faster slew rate and similar temperature range, while OPA4134MJ offers superior DC precision and noise at the expense of military qualification and extended temperature support - making TL064MJB the optimal choice for cost-constrained, high-reliability embedded systems requiring guaranteed low-power JFET performance across –55°C to +125°C.

Availability

TL064MJB is available at Aetrix Electronics and suitable for avionics power monitoring, downhole sensor conditioning, ruggedized data loggers, and military radio IF stages requiring stable component supply under extended temperature and high-reliability conditions.

Supply support for TL064MJB 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 specializing in analog and embedded processing technologies, with decades of heritage in precision op-amps and military-grade ICs.

The TL06x family was engineered to deliver JFET-input performance at bipolar-compatible price points, targeting cost-sensitive yet reliability-critical applications in industrial control, aerospace, and defense systems.

FAQ

What is the maximum operating temperature for TL064MJB?

The TL064MJB is fully specified and tested from –55°C to +125°C per MIL-PRF-38535 requirements. Its electrical parameters - including input bias current, offset voltage, and slew rate - are guaranteed across this full range, making it suitable for engine control units, downhole tools, and satellite power systems where junction temperatures exceed 100°C.

Does TL064MJB require external compensation capacitors?

No, TL064MJB includes internal frequency compensation optimized for unity-gain stability. The device drives capacitive loads up to 100 pF without oscillation and does not require external compensation components - reducing bill-of-materials cost and PCB area in filter, sensor interface, and ADC driver circuits.

How is input offset voltage adjusted on TL064MJB?

TL064MJB provides dedicated offset null pins (1 and 5) for each amplifier section. A 10-kΩ potentiometer is connected between these pins with its wiper tied to V_CC–; adjusting the potentiometer balances the input stage to reduce V_IO to <1 mV - a capability confirmed in the TL064M datasheet's Electrical Characteristics table and Figure 7-3.

Is TL064MJB pin-compatible with other TL064 variants?

Yes, TL064MJB shares identical pinout and footprint with all TL064x variants in the CDIP-14 package (e.g., TL064J, TL064AJ). The "M" suffix denotes the military temperature grade and MIL-PRF-38535 compliance, but electrical connectivity and mechanical mounting are fully interchangeable - enabling drop-in replacement in legacy designs qualifying to earlier specs.

What is the input common-mode voltage range of TL064MJB?

The TL064MJB supports a common-mode input voltage range from V_CC– + 4 V to V_CC+ – 4 V at 25°C, with full functionality maintained across –55°C to +125°C. This includes operation with inputs referenced to V_CC+, enabling high-side current sensing and rail-to-rail signal acquisition without level-shifting circuitry.

TL064MJB Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 14-CDIP (0.300", 7.62mm)

Packaging:: Bulk

Product Status:: Active

Amplifier Type:: J-FET

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 3.5V/µs

Gain Bandwidth Product:: 1 MHz

-3db Bandwidth:: -

Current - Input Bias:: 30 pA

Voltage - Input Offset:: 3 mV

Current - Supply:: 200µA (x4 Channels)

Current - Output / Channel:: 10 mA

Voltage - Supply Span (Min):: 10 V

Voltage - Supply Span (Max):: 60 V

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 14-CDIP

TL064MJB FAQ

1.How can I place an order for TL064MJB through Aetrix?

Please submit a Request for Quotation (RFQ) for TL064MJB 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 TL064MJB reliable?

The price and inventory of TL064MJB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL064MJB is usually 5 days.

3.What payment methods are accepted for TL064MJB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL064MJB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL064MJB?

TL064MJB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL064MJB 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 TL064MJB?

For technical support, including TL064MJB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL064MJB requirements.

6.How does Aetrix verify that TL064MJB is sourced from the original manufacturer or authorized distributors?

All TL064MJB 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 TL064MJB meets industry standards.

7.What is the process for return or replacement of TL064MJB?

All TL064MJB units undergo pre-shipment inspection (PSI). If there is an issue with TL064MJB, 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 TL064MJB part is unused and in its original packaging.

Return procedure for TL064MJB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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