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Analog Devices Inc. LTC6258IDC#TRPBF
- Part No.:
- LTC6258IDC#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6258IDC#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,128
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Product details
Overview
LTC6258IDC#TRPBF from Analog Devices is a single-channel, rail-to-rail input/output operational amplifier optimized for micropower, low-voltage, and high-precision signal conditioning. It delivers 1.3MHz gain-bandwidth, 20µA quiescent current, 400µV max input offset voltage, rail-to-rail operation from 1.8V to 5.25V supplies, and C-Load™ capability to drive ≥100nF capacitive loads stably - ideal for battery-powered instrumentation and automotive sensor interfaces.
For engineers reviewing the LTC6258IDC#TRPBF datasheet, LTC6258IDC#TRPBF pinout, LTC6258IDC#TRPBF application, or LTC6258IDC#TRPBF equivalent, key selection criteria include its shutdown functionality (7µA max), EMI rejection ratio (45dB at 1GHz), input bias current (75nA max), CMRR/PSRR (95dB/90dB), and 6-lead 2mm × 2mm DFN package with exposed V– pad.
Technical Context
The LTC6258IDC#TRPBF employs a dual-input-stage architecture (PNP + NPN) enabling true rail-to-rail input operation across –0.1V to V+ + 0.1V, with automatic transition between stages near the positive rail. Its patented C-Load™ compensation maintains unity-gain stability into 100nF loads without external compensation.
It integrates active shutdown logic with 0.6V threshold referenced to V–, reducing supply current to ≤7µA while placing the output in high-impedance state. Input bias current cancellation circuitry holds IB ≤75nA over 0.2V to (V+ – 0.2V) common-mode range, supporting high-impedance sensor interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 1.3MHz - enables stable closed-loop operation up to ~100kHz at G = 10 without phase margin loss. |
| Quiescent Current | 20µA per amplifier - supports multi-year battery life in always-on portable sensors and IoT endpoints. |
| Input Offset Voltage | ±400µV max - ensures <0.1% error in 0.4V full-scale precision measurement circuits. |
| Supply Voltage Range | 1.8V to 5.25V - compatible with single-cell Li-ion, 2xAA, and 3.3V/5V system rails without level shifting. |
| EMI Rejection Ratio | 45dB at 1GHz - suppresses RF-induced offset shifts in automotive and industrial EMI-heavy environments. |
| Capacitive Load Drive | ≥100nF - eliminates need for isolation resistors or external compensation in ADC driver and filter applications. |
| Shutdown Current | ≤7µA - enables power cycling of signal chains without PCB layout changes or auxiliary control logic. |
Pinout & Package
Package: 6-lead plastic DFN (2mm × 2mm × 0.8mm) with exposed V– pad soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Amplifier output | Rail-to-rail capable; sinks/sources ≥4mA; high-Z in shutdown. |
| 2: –IN | Inverting input | Accepts V– – 0.1V to V+ + 0.1V; matched to +IN for CMRR optimization. |
| 3: SHDN | Active-low shutdown control | Pulled up internally; ≤0.6V w.r.t. V– disables amplifier and reduces IQ to ≤7µA. |
| 4: V+ | Positive supply | 1.8V–5.25V range; requires 0.1µF bypass capacitor close to pin. |
| 5: +IN | Noninverting input | Same voltage range as –IN; differential input resistance ≥1MΩ. |
| 6: V– | Negative supply / ground reference | Typically 0V; exposed pad (Pin 7) is electrically connected to V– and must be soldered. |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ capacitive load drive | Stable unity-gain operation into ≥100nF without external compensation components. |
| Rail-to-rail input and output | Full dynamic range utilization from V– – 0.1V to V+ + 0.1V input; output swings within 30mV of rails at light load. |
| Low EMI sensitivity | 45dB rejection at 1GHz prevents RF rectification-induced DC offset errors in noisy environments. |
| Input bias current cancellation | ≤75nA over 0.2V to (V+ – 0.2V) common-mode range enables use with >100kΩ sensor sources. |
| Wide temperature grade | Specified from –40°C to +85°C (I-grade), supporting industrial and automotive under-hood applications. |
Applications
| Micropower Active Filter | Portable Instrumentation |
|---|---|
Use Scenario: 10kHz bandpass filter in handheld multimeter front-end with AC-coupled input and fixed-bias op amp stage. IC Role / Device Role: Precision gain stage and filter integrator with low noise (38nV/√Hz) and stable high-C drive. Use Value: Eliminates external compensation and enables ±0.05% amplitude accuracy over temperature using only 20µA per channel. | Use Scenario: Signal conditioning for thermocouple or RTD measurements in battery-powered data loggers. IC Role / Device Role: Low-drift, rail-to-rail input buffer amplifying µV-level sensor outputs with minimal power overhead. Use Value: Enables 16-bit effective resolution with <400µV offset error and no cold-junction compensation burden on MCU. |
| Battery-Powered System | Automotive Electronics |
Use Scenario: Voltage monitoring and cell balancing in 2-cell Li-ion packs with 1.8V–4.2V operating range. IC Role / Device Role: High-impedance sense amplifier feeding ADC, with shutdown during sleep cycles. Use Value: Reduces system standby current by >99% versus standard op amps, extending battery life by months. | Use Scenario: Position sensor interface in engine control unit (ECU) exposed to 12V transients and RF noise. IC Role / Device Role: EMI-hardened signal conditioner for Hall-effect or variable-reluctance sensors. Use Value: Maintains <10µV offset shift under 1GHz GSM burst interference, meeting ISO 11452-2 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260ASA+T | Lower GBW (1MHz), higher IQ (35µA), no shutdown, 8-pin SOIC only | Suitable for space-tolerant designs where PCB area is not constrained and shutdown is unnecessary | Select when lower cost and SOIC compatibility outweigh need for DFN footprint and ultra-low power. |
| OPA316IDBVR | Higher IQ (100µA), higher offset (500µV), no C-Load™, 1.8V–5.5V supply | Better slew rate (1.5V/µs) but unsuitable for direct 100nF ADC driver without series resistor | Choose for faster settling in non-capacitive-load applications where 20µA budget is unavailable. |
Compared with MAX44260ASA+T and OPA316IDBVR, the LTC6258IDC#TRPBF uniquely combines sub-20µA operation, 100nF direct drive, and integrated shutdown in a 2mm × 2mm DFN - making it optimal for miniaturized, battery-constrained systems requiring uncompromised stability and precision.
Availability
LTC6258IDC#TRPBF is available at Aetrix Electronics and suitable for micropower active filters, portable instrumentation, and battery-powered systems requiring stable component supply with guaranteed long-term manufacturability and RoHS/WEEE compliance.
Supply support for LTC6258IDC#TRPBF 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
Analog Devices (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC6258 family belongs to Linear's precision micropower op amp product line, designed specifically for ultra-low-power, wide-supply, rail-to-rail signal conditioning in space- and energy-constrained applications.
FAQ
What is the maximum capacitive load the LTC6258IDC#TRPBF can drive without oscillation?
The LTC6258IDC#TRPBF is specified to drive ≥100nF capacitive loads stably in unity-gain configuration, thanks to its proprietary C-Load™ compensation architecture. This eliminates the need for external isolation resistors or feedback capacitors in ADC driver, filter, and sensor interface applications - a key differentiator versus conventional micropower op amps that require careful layout and compensation to avoid instability.
Does the LTC6258IDC#TRPBF support true ground-sensing input operation?
Yes. The LTC6258IDC#TRPBF accepts input voltages down to V– – 0.1V, enabling true ground-sensing (i.e., 0V referenced to V–) in single-supply configurations. Combined with rail-to-rail output swing within 30mV of V–, it supports precision zero-crossing detection and low-side current sensing without level-shifting circuitry - critical for accurate battery voltage monitoring and shunt-based current measurement.
How does the shutdown function of the LTC6258IDC#TRPBF behave during power-up?
When V+ ramps up, the LTC6258IDC#TRPBF remains enabled unless the SHDN pin is actively pulled ≤0.6V below V–. The SHDN pin has an internal pull-up to V+, so leaving it unconnected ensures normal operation during power-up. Turn-on time is 152µs (5V supply); turn-off time is 7µs - enabling fast power cycling in duty-cycled sensor nodes without latch-up risk.
What is the input voltage noise density of the LTC6258IDC#TRPBF, and how does it impact low-frequency precision?
The LTC6258IDC#TRPBF has an input voltage noise density of 38nV/√Hz at 1kHz and 2µVP-P integrated from 0.1Hz to 10Hz. This low 1/f noise enables high-resolution DC-coupled measurements in portable instrumentation - for example, preserving 16-bit effective resolution in a 1V full-scale thermistor readout with <0.005% noise-induced error, even at sub-1Hz update rates.
Is the LTC6258IDC#TRPBF pin-compatible with other members of the LTC6258/LTC6259/LTC6260 family?
No - the LTC6258IDC#TRPBF uses a 6-lead DFN package with SHDN pin, while LTC6259 variants (dual) use 8- or 10-lead packages and LTC6260 (quad) uses 16-lead MSOP. Pinouts differ across channel count and package types. However, the electrical specifications, shutdown behavior, and C-Load™ performance are consistent across the family, enabling scalable design reuse when migrating from single to multi-channel implementations.
LTC6258IDC#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.24V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 75 nA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 20µA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x2)
LTC6258IDC#TRPBF FAQ
1.How can I place an order for LTC6258IDC#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6258IDC#TRPBF 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 LTC6258IDC#TRPBF reliable?
The price and inventory of LTC6258IDC#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6258IDC#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6258IDC#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6258IDC#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6258IDC#TRPBF?
LTC6258IDC#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6258IDC#TRPBF 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 LTC6258IDC#TRPBF?
For technical support, including LTC6258IDC#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6258IDC#TRPBF requirements.
6.How does Aetrix verify that LTC6258IDC#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6258IDC#TRPBF 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 LTC6258IDC#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6258IDC#TRPBF?
All LTC6258IDC#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6258IDC#TRPBF, 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 LTC6258IDC#TRPBF part is unused and in its original packaging.
Return procedure for LTC6258IDC#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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