My Inquiry
My Account
Texas Instruments LF356H/NOPB
- Part No.:
- LF356H/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-99-8 Metal Can
- Datasheet:
-
LF356H/NOPB.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT TO99-8
- Quantity:
- Payment:
- Shipping:
Inventory:110
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LF356H/NOPB from Texas Instruments is a JFET-input operational amplifier optimized for precision high-speed integrators, fast D/A and A/D converters, and wideband low-noise amplification. It delivers 12 V/µs slew rate, 5 MHz gain bandwidth, 0.01% settling in 1.5 µs, 30 pA input bias current, and 12 nV/√Hz input voltage noise at 1 kHz - enabling stable operation with 5000 pF capacitive loads in instrumentation and data acquisition systems.
For engineers reviewing the LF356H/NOPB datasheet, LF356H/NOPB pinout, LF356H/NOPB application, or LF356H/NOPB equivalent, this page provides verified specifications, validated pin functions, real-world application contexts, and confirmed alternative options for precision analog signal conditioning, high-impedance buffering, and fast-settling feedback loops.
Technical Context
The LF356H/NOPB uses TI's BI-FET™ process integrating matched high-voltage JFETs with bipolar transistors, enabling low 1/f noise corner and offset adjust without degrading drift or CMRR. Its input stage supports ±30 V differential input voltage and common-mode range extending to V+ +100 mV, while the output stage drives large capacitive loads (up to 5000 pF) without external compensation.
It features internal frequency compensation, rail-to-rail input common-mode range (–12 V to +15.1 V at ±15 V supply), and DC-coupled operation with 1012 Ω input resistance. The device operates across 0°C to +70°C and requires no external components for stability in unity-gain inverter configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 12 V/µs - enables accurate reproduction of fast transient signals in data converter interfaces and pulse amplifiers |
| Gain Bandwidth Product | 5 MHz - supports stable closed-loop gain ≥10 at 500 kHz or unity gain up to 5 MHz |
| Settling Time to 0.01% | 1.5 µs - meets timing requirements for 12-bit DAC/ADC buffer stages and sample-and-hold circuits |
| Input Bias Current | 30 pA typical - preserves signal integrity in high-impedance sensor interfaces (e.g., photodiode, piezoelectric) |
| Input Voltage Noise | 12 nV/√Hz at 1 kHz - ensures low-noise amplification for precision instrumentation with source impedances <10 kΩ |
| Input Resistance | 1012 Ω - minimizes loading error in electrometer-grade applications and passive filter networks |
| Common-Mode Rejection | 80–100 dB - maintains accuracy in single-supply or rail-referenced sensing with varying ground potentials |
| Supply Voltage Range | ±15 V (recommended), ±18 V (absolute max) - compatible with standard dual-rail analog power domains |
Pinout & Package
LF356H/NOPB is supplied in an 8-pin TO-99 metal can package (9.08 mm × 9.08 mm body), designed for hermetic sealing and thermal stability in demanding analog environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BALANCE (Pin 1 & 5) | Offset null adjustment terminals | Connect external 10-kΩ potentiometer wiper to V–; ends to V+ and V– - adjusts input offset without degrading drift or CMRR |
| +INPUT (Pin 3) | Noninverting input | High-impedance JFET gate node - accepts signals up to V+ +100 mV; immune to latch-up under overvoltage |
| –INPUT (Pin 2) | Inverting input | High-impedance JFET gate node - used for feedback summation, transimpedance conversion, and precision inverting gain |
| NC (Pin 8) | No connection | Internally unconnected - must remain floating; no routing or grounding permitted |
| OUTPUT (Pin 6) | Amplifier output | Class-A/B bipolar output stage - drives ≥2 kΩ loads with ±12 V swing and remains stable into 5000 pF |
| V+ (Pin 7) | Positive supply | Accepts +15 V nominal; supports up to +18 V absolute max - powers input JFETs and output stage |
| V– (Pin 4) | Negative supply | Accepts –15 V nominal; supports down to –18 V absolute max - defines lower common-mode limit (–12 V min) |
Key Features
| Feature | Design Value |
|---|---|
| Rugged JFET input stage | Withstands ±30 V differential input without clamping - eliminates need for external protection diodes in high-voltage sensor front-ends |
| Offset adjust without performance penalty | Adjustment via Pins 1/5 does not degrade temperature drift (5 µV/°C typ) or CMRR (80–100 dB) |
| Large capacitive load drive | Stable with 5000 pF output capacitance - enables direct interface to ADC input capacitors and long coaxial cables |
| Low 1/f noise corner | Typical corner <10 Hz - critical for precision DC-coupled amplification in strain gauge and thermocouple signal chains |
| Wide common-mode input range | Operates with inputs up to V+ +100 mV - allows use of positive supply as reference in current-sense monitor topologies |
Applications
| Precision High-Speed Integrators | Fast D/A and A/D Converter Buffers |
|---|---|
Use Scenario: Integrating photodiode current in optical position encoders requiring sub-microsecond reset and <0.01% linearity over 10-ms windows. IC Role / Device Role / Timing Role: JFET-input integrator core with ultra-low input bias (30 pA) and 1.5 µs 0.01% settling - maintains charge accuracy during rapid reconfiguration. Use Value: Eliminates hybrid op-amp replacements; achieves 16-bit effective resolution without external trimming. |
Use Scenario: Buffering 12-bit DAC outputs driving 50-Ω transmission lines in automated test equipment with 100-ns update cycles. IC Role / Device Role / Timing Role: Unity-gain voltage follower with 12 V/µs slew rate and 5 MHz GBW - preserves edge fidelity and minimizes glitch energy. Use Value: Enables direct interface to SAR ADCs without external isolation; reduces board area by 40% vs. discrete solutions. |
| High-Impedance Instrumentation Buffers | Logarithmic Amplifiers for Wide-Dynamic-Range Sensing |
Use Scenario: Front-end buffering of pH electrode (100 MΩ–1 GΩ source) in portable environmental analyzers operating from battery power. IC Role / Device Role / Timing Role: Noninverting amplifier with 1012 Ω input resistance and 30 pA bias - prevents electrode polarization and drift-induced calibration drift. Use Value: Extends calibration interval to >6 months; eliminates need for guarded PCB traces or Teflon standoffs. |
Use Scenario: Converting 100 µA–1 mA photocurrent from avalanche photodiodes into linear voltage output for LIDAR time-of-flight measurement. IC Role / Device Role / Timing Role: Transimpedance log amp with 12 nV/√Hz noise floor and 5-decade dynamic range - resolves weak return pulses amid strong ambient light. Use Value: Achieves 100-dB SNR at 100 kHz; replaces discrete FET+BJT combos requiring manual matching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar JFET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L6CP | Lower supply current (1.4 mA vs. 7 mA), slower slew (0.065 V/µs), narrower GBW (105 kHz); CMOS input (not JFET) | Optimized for ultra-low-power battery operation, not high-speed settling or capacitive load drive | Select when power budget <2 mW is critical and speed <100 kHz suffices |
| OPA140AID | JFET input, lower noise (5.1 nV/√Hz), higher precision (125 µV VOS max), but limited capacitive load drive (100 pF) | Targets ultra-low-noise precision instrumentation, not fast settling or heavy capacitive loads | Select when 16-bit+ resolution and <1 µV/°C drift dominate; avoid for >500 pF loads |
Compared with TLC27L6CP and OPA140AID, LF356H/NOPB uniquely balances high slew rate (12 V/µs), 5 MHz bandwidth, and robust 5000 pF capacitive load stability - making it irreplaceable in fast-settling data converter interfaces where both speed and drive capability are mandatory.
Availability
LF356H/NOPB is available at Aetrix Electronics and suitable for precision instrumentation, industrial data acquisition, and high-speed analog interface design requiring stable component supply across extended product lifecycles.
Supply support for LF356H/NOPB 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 over 50 years of op-amp innovation and manufacturing excellence.
The LF356H/NOPB belongs to TI's legacy LFx5x JFET-input op-amp family, engineered for high-speed precision analog signal conditioning in test equipment, medical instrumentation, and industrial control systems where low bias current and fast settling are essential.
FAQ
What is the maximum capacitive load the LF356H/NOPB can drive stably?
The LF356H/NOPB is specified to operate stably with up to 5000 pF of capacitive load on its output without external compensation. This capability stems from its internally compensated architecture and robust output stage, making it ideal for driving ADC input capacitors, coaxial cables, or piezoelectric transducers directly. For loads exceeding 5000 pF, external isolation or series resistance may be required to maintain phase margin.
Does offset adjustment on the LF356H/NOPB affect temperature drift or common-mode rejection?
No - the LF356H/NOPB's offset adjustment circuitry (using Pins 1 and 5) is specifically designed so that adjusting input offset voltage does not degrade temperature drift (typical 5 µV/°C) or common-mode rejection ratio (80–100 dB). This is a key differentiator from many monolithic op-amps where nulling compromises long-term stability, and is explicitly confirmed in the TI datasheet revision history and feature description sections.
What is the input common-mode voltage range for the LF356H/NOPB at ±15 V supply?
At ±15 V supply, the LF356H/NOPB supports an input common-mode voltage range from –12 V to +15.1 V. Notably, the upper limit exceeds the positive supply rail by approximately 100 mV - enabling use cases such as supply-current monitoring where the positive rail itself serves as a reference input. This behavior is consistent across the full 0°C to +70°C operating temperature range.
Can the LF356H/NOPB replace hybrid or module FET op-amps in precision designs?
Yes - the LF356H/NOPB was explicitly designed to replace expensive hybrid and module FET operational amplifiers, as stated in its official TI datasheet features section. Its monolithic BI-FET™ construction delivers comparable performance (low bias current, low noise, high slew rate) in a standardized TO-99 package, eliminating the cost, size, and reliability penalties of hybrid assemblies while maintaining compatibility with existing socketed layouts.
What is the typical input bias current of the LF356H/NOPB, and how does it vary with temperature?
The LF356H/NOPB has a typical input bias current of 30 pA at 25°C, with a maximum of 200 pA over temperature (0°C to +70°C). As a JFET-input device, its bias current approximately doubles every 10°C rise in junction temperature. At 70°C ambient with typical power dissipation, junction temperature may reach ~90°C, resulting in bias current near 120 pA - a value still orders of magnitude lower than bipolar-input alternatives.
LF356H/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- BI-FET™
- Package/Case:
- TO-99-8 Metal Can
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 12V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 30 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-99-8
LF356H/NOPB FAQ
1.How can I place an order for LF356H/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LF356H/NOPB 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 LF356H/NOPB reliable?
The price and inventory of LF356H/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LF356H/NOPB is usually 5 days.
3.What payment methods are accepted for LF356H/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LF356H/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LF356H/NOPB?
LF356H/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LF356H/NOPB 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 LF356H/NOPB?
For technical support, including LF356H/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LF356H/NOPB requirements.
6.How does Aetrix verify that LF356H/NOPB is sourced from the original manufacturer or authorized distributors?
All LF356H/NOPB 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 LF356H/NOPB meets industry standards.
7.What is the process for return or replacement of LF356H/NOPB?
All LF356H/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LF356H/NOPB, 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 LF356H/NOPB part is unused and in its original packaging.
Return procedure for LF356H/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LF356H/NOPB 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…
