LT1058CN - 4-Channel 5MHz JFET Op Amp | Analog Devices
MPN: LT1058CN ✗ End of LifeLT1058CN Overview
An operational amplifier is an analog building block that amplifies the voltage difference between its inverting and non-inverting inputs. The LT1058 belongs to the precision operational-amplifier hierarchy and uses JFET input transistors to provide low input bias current. Four independent amplifiers in one PDIP package can reduce component count and simplify board layout in instrumentation, signal-conditioning, test, measurement, and control systems.
The principal performance figures include a 5 MHz gain-bandwidth product, 13 V/us slew rate, and 600 uV maximum input offset voltage for the LT1058. Its four-channel organization supports parallel amplification of related or independent signals. The JFET input stage is particularly useful when the source impedance is high, because low input bias current reduces the voltage error generated as current flows through that impedance.
The LT1058 is part of the LT1057/LT1058 family of dual and quad JFET-input precision high-speed operational amplifiers. The official family datasheet identifies a minimum 10 V/us slew rate and a minimum 5 MHz gain-bandwidth product for the family, while distributor data for the LT1058 identifies 13 V/us slew rate. The verified comparison data also identifies operation from negative 20 V to positive 20 V, a 1.7 mA listed supply current, and a 14-pin PDIP package.
Typical uses include precision signal conditioning, laboratory measurement, analog instrumentation, process-control circuits, active filtering, and low-frequency data-acquisition channels. In high-impedance systems, the JFET inputs help preserve signal fidelity by minimizing bias-current-induced errors. For broadband or high-amplitude applications, the 13 V/us slew rate provides a useful speed margin, while the 5 MHz gain-bandwidth product limits closed-loop bandwidth according to the selected feedback topology and noise-gain setting.
Designers should verify the complete input and output voltage ranges against the selected supply voltage, including the effects of input common-mode range, output swing, and load current. Decoupling capacitors should be placed close to the supply pins, and unused amplifier channels should be configured according to the manufacturer's guidance rather than left with floating inputs. The broad 14-pin PDIP footprint is mechanically straightforward but occupies more board area than a modern surface-mount quad op amp.
This page combines the verified LT1058 family specifications, distributor identification, package data, practical application guidance, and a conservative review of available drop-in alternatives. It distinguishes verified parameters from information that must be checked in the manufacturer datasheet before production release.
Drop-in alternatives for LT1058CN — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
LT1058CN#PBF
✅ Drop-In📋 Reference alternative (not in catalog)
LT1058ACN#PBF
✅ Drop-In📋 Reference alternative (not in catalog)
LT1058CN Maximum Ratings & Electrical Characteristics
| Number of Amplifier Channels | 4 channels |
| Amplifier Type | JFET-input precision operational amplifier |
| Gain-Bandwidth Product | 5 MHz |
| Slew Rate | 13 V/us |
| Minimum Family Slew Rate | 10 V/us |
| Input Offset Voltage | 600 uV maximum for LT1058 |
| Supply Voltage Range | -20 V to +20 V |
| Supply Current | 1.7 mA |
| Number of Pins | 14 pins |
| Package | 14-pin PDIP, 0.300 in (7.62 mm) pitch |
| Mounting Type | Through-hole |
| Fast Settling Time | 0.02% to specified settling tolerance |
LT1058CN Pin Configuration
| Pin 1 | OUT1 — Amplifier 1 output |
| Pin 2 | -IN1 — Amplifier 1 inverting input |
| Pin 3 | +IN1 — Amplifier 1 non-inverting input |
| Pin 4 | V- — Negative supply connection |
| Pin 5 | +IN2 — Amplifier 2 non-inverting input |
| Pin 6 | -IN2 — Amplifier 2 inverting input |
| Pin 7 | OUT2 — Amplifier 2 output |
| Pin 8 | OUT3 — Amplifier 3 output |
| Pin 9 | -IN3 — Amplifier 3 inverting input |
| Pin 10 | +IN3 — Amplifier 3 non-inverting input |
| Pin 11 | V+ — Positive supply connection |
| Pin 12 | +IN4 — Amplifier 4 non-inverting input |
| Pin 13 | -IN4 — Amplifier 4 inverting input |
| Pin 14 | OUT4 — Amplifier 4 output |
Typical Applications
LT1058CN is suitable for 6 applications: Precision Signal Conditioning, Laboratory Test and Measurement, High-Impedance Sensor Interfaces, Active Analog Filters, Process-Control Analog Front Ends, Data-Acquisition Input Conditioning.
Precision Signal Conditioning
The LT1058CN fits precision signal-conditioning modules because each of its four JFET-input channels provides a 5 MHz gain-bandwidth product, 13 V/us slew rate, and up to 600 uV offset voltage. Multiple amplifiers can condition related inputs while maintaining consistent device characteristics within one 14-pin PDIP package. The JFET input architecture is useful when avoiding excessive bias-current error across high source impedances. Designers should still confirm input common-mode range and output swing for the selected power supply. Compared with a rail-to-rail amplifier, the LT1058 may require more supply headroom, but it provides a traditional precision high-speed input stage suited to laboratory and legacy control boards.
Recommended
Laboratory Test and Measurement
The LT1058CN is appropriate for laboratory measurement front ends requiring four precision amplifiers and a conventional through-hole footprint. Its 13 V/us slew rate allows useful large-signal response for moderate-bandwidth analog signals, while the 5 MHz gain-bandwidth product supports closed-loop designs at frequencies below that limit. The four channels can implement gain stages, active filters, buffers, or comparator-style conditioning functions. Engineers should use short, shielded input paths and verify noise, offset, and settling behavior at the required test bandwidth. The PDIP format also makes the device convenient for prototypes and repair assemblies that cannot easily change to a surface-mount package.
Recommended
High-Impedance Sensor Interfaces
The LT1058CN can be used at the input of high-impedance sensor and instrumentation circuits where a JFET input stage helps minimize bias-current-induced signal error. Its 600 uV maximum LT1058 offset specification is particularly relevant when scaling small sensor outputs, and its 5 MHz gain-bandwidth product provides more bandwidth than a purely low-frequency precision amplifier may require. The actual suitability depends on the sensor source impedance, input capacitance, and total noise contribution. The input common-mode range must include the sensor output at every operating condition. An RC input network may be needed to control bandwidth and prevent parasitic oscillation, subject to validation against the manufacturer's guidance.
Recommended
Active Analog Filters
The LT1058CN supports active-filter implementations requiring up to four amplifiers, a 5 MHz gain-bandwidth product, and a 13 V/us listed slew rate. It can be used for unity-gain buffers, gain blocks, or multi-stage filter sections where the closed-loop stability and noise gain are selected correctly. Component tolerances and amplifier noise can influence the filter response, so simulation should include realistic capacitor and resistor values. The device is particularly suitable for low-to-moderate-bandwidth precision filters in industrial and laboratory equipment. Its through-hole package simplifies hand-built prototypes, but a modern surface-mount amplifier may be preferable when board area, supply voltage, or power consumption is the dominant constraint.
Recommended
Process-Control Analog Front Ends
The LT1058CN can support industrial analog front ends that condition low-level control or sensor signals in a four-channel architecture. Its 5 MHz gain-bandwidth product is ample for many slow process-control loops, while the 13 V/us slew rate supplies a margin for faster transient events. The JFET inputs are advantageous when connected to high-impedance sources, but industrial systems must also verify input common-mode limits, noise immunity, and the available supply rails. A ±15 V or split-supply arrangement can provide the required operating headroom in legacy control equipment. Proper grounding, filtering, and surge protection remain system-level requirements rather than capabilities guaranteed by the amplifier itself.
Recommended
Data-Acquisition Input Conditioning
The LT1058CN is usable in multichannel data-acquisition input-conditioning boards when each sensor or converter requires an amplifier in a compact wiring footprint. Four independent channels reduce package count compared with four single amplifiers, and the 5 MHz gain-bandwidth product supports many low-speed acquisition systems. Its 13 V/us slew rate can reproduce moderate-amplitude transients without the severe slew limitation of much slower precision amplifiers. Designers should calculate the closed-loop response at each gain setting and ensure that the source, anti-alias filter, and amplifier together meet the required settling time. Because the verified data does not specify input bias current numerically, high-impedance sources require an additional check of the complete datasheet.
Recommended
Recommended Products Summary
Engineering reference data for LT1058CN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LT1058CN#PBF | LT1058ACN#PBF |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 14-PDIP (0.300 in, 7.62 mm pitch) | 14-PDIP (0.300 in, 7.62 mm pitch) - same | 14-PDIP (0.300 in, 7.62 mm pitch) - same |
| Number of Channels | 4 circuits | 4 circuits | 4 circuits |
| Input Stage | JFET | JFET | JFET |
| Gain-Bandwidth Product | 5 MHz | 5 MHz | 5 MHz |
| Slew Rate | 13 V/us | 13 V/us | 13 V/us |
| Supply Voltage Range | -20 V to +20 V | -20 V to +20 V | -20 V to +20 V |
| Lead-Free Ordering | Non-PBF ordering designation | Lead-free PBF ordering designation | Lead-free PBF ordering designation |
Key Differentiators
- Four precision amplifiers in one conventional 14-pin package (vs LT1058ACN#PBF)
- Direct lead-free ordering option for verified procurement (vs LT1058CN#PBF)
- Higher listed slew rate than the family minimum (vs LT1058ACN#PBF)
Design Notes
Decouple the positive and negative supply pins directly at the IC with short, low-inductance traces. The verified LT1058 family documentation should be used to select the required bypass capacitors and to confirm the 1.7 mA listed supply-current condition. Place each capacitor close to its relevant supply pin, keep the return path short, and avoid routing sensitive input lines between the regulator and bypass-capacitor connections. Check startup behavior across the full -20 V to +20 V supply range before production.
Keep the four input paths short, symmetrical, and away from high-impedance or switching nodes. For high-impedance sources, minimize leakage from board contamination and flux residue, and use guarding where appropriate. Connect unused amplifier inputs to a defined potential rather than allowing them to float. The 14-PDIP footprint is easy to route, but lead inductance and socket capacitance can still affect high-gain layouts, so compare the physical assembly method with the intended bandwidth before release.
Do not assume that the -20 V to +20 V supply rating means the input and output can reach either rail. Confirm the input common-mode range, output swing, and stability for the intended gain and load. Also verify the exact ordering code: LT1058CN, LT1058CN#PBF, and LT1058ACN#PBF may share the 14-PDIP format while differing in ordering, qualification, or lifecycle details not fully captured in the supplied snippets.
Compliance Information
The supplied snippets do not explicitly state the RoHS, REACH, halogen-free, conflict-minerals, or temperature-grade status of the base LT1058CN. LT1058CN#PBF is listed with a lead-free PBF suffix, but that suffix alone was not treated as proof of the other compliance fields.
