My Inquiry
My Account
Analog Devices Inc. LTC6241CDD#TRPBF
- Part No.:
- LTC6241CDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6241CDD#TRPBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,113
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6241CDD#TRPBF from Analog Devices (formerly Linear Technology) is a dual, low-noise, rail-to-rail output CMOS operational amplifier in an 8-lead 3mm × 3mm DFN package, featuring 18MHz gain bandwidth, 10V/μs slew rate, and 550nVP-P 0.1Hz–10Hz noise. It delivers 125μV max input offset voltage, 1pA max input bias current, and operates from 2.8V to 6V supplies - ideal for precision photodiode amplification and high-impedance sensor signal conditioning.
For engineers reviewing the LTC6241CDD#TRPBF datasheet, LTC6241CDD#TRPBF pinout, LTC6241CDD#TRPBF application, or LTC6241CDD#TRPBF equivalent, this page provides verified specifications, package layout, real-world use cases, and validated alternative options for low-noise dual op amp selection in medical instrumentation, charge-coupled amplifiers, and low-supply rail-to-rail signal chains.
Technical Context
The LTC6241CDD#TRPBF implements a unity-gain-stable CMOS input stage with guaranteed ≤1pA input bias current and 3.5pF differential input capacitance, enabling stable operation with high-source-impedance sensors. Its rail-to-rail output swings within 30mV of either supply rail at 5mA load, while the input common-mode range extends to the negative rail - supporting single-supply operation down to 2.8V.
It features matched channel performance (≤650μV VOS match, ≤95dB CMRR match) and maintains 13–18MHz gain bandwidth across temperature and supply variations. The device is specified for 0°C to 70°C operation and supports ±2.5V, +5V, or +3V single-ended supplies without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 18MHz - enables stable closed-loop gain ≥10 at 1.8MHz or ≥2 at 9MHz for fast signal acquisition. |
| Input Offset Voltage | 125μV max - ensures ≤0.25% error in 50mV full-scale sensor outputs without trimming. |
| 0.1Hz–10Hz Noise | 550nVP-P - critical for DC-coupled, low-frequency applications like ECG front-ends and strain gauge bridges. |
| Input Bias Current | 1pA max - preserves signal integrity in >1GΩ source impedance circuits (e.g., photodiode, pH electrode). |
| Supply Voltage Range | 2.8V to 6V - supports battery-powered portable instruments and industrial 3.3V/5V systems without level-shifting. |
| Output Swing | Within 30mV of rails at 5mA - maximizes dynamic range in low-voltage data acquisition (e.g., 3.3V ADC interface). |
| Slew Rate | 10V/μs - allows clean 1VPP output at up to ~1.6MHz without slewing distortion. |
Pinout & Package
Package: 8-lead (3mm × 3mm) plastic DFN (DD), exposed underside metal connected to V– (PCB connection optional). Thermal resistance θJA = 43°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 5mA with rail-to-rail swing; requires local 100nF bypass to V–. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; guard ring recommended for <1pA leakage paths. |
| 3 | +IN A | Non-inverting input of Amp A - referenced to system ground or bias network; matched to Pin 6 for common-mode rejection. |
| 4 | V– | Negative supply rail - also connects to exposed thermal pad; must be low-impedance for noise immunity. |
| 5 | V+ | Positive supply rail - accepts 2.8V–6V; decouple with 100nF ceramic capacitor near Pin 5. |
| 6 | +IN B | Non-inverting input of Amp B - electrically matched to Pin 3 for dual-channel instrumentation topologies. |
| 7 | –IN B | Inverting input of Amp B - symmetric layout with Pin 2 minimizes inter-channel crosstalk (< –100dB @ 1kHz). |
| 8 | OUT B | Amplifier B output - independent output stage; shares V+ and V– rails but no internal coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full 2.74Vpp output on 3V supply - eliminates need for level-shifting in microcontroller ADC interfaces. |
| Ultra-low input bias current | ≤1pA max guarantees <1μV error from 1GΩ source impedance - essential for photodiode transimpedance stages. |
| Low 0.1Hz–10Hz noise | 550nVP-P enables sub-μV resolution in DC-coupled biosignal amplifiers without post-acquisition filtering. |
| Matched dual architecture | ≤650μV channel-to-channel VOS match supports accurate differential sensing and active filter symmetry. |
| Unity-gain stable | Operates without external compensation in gain-of-1 buffers - simplifies PCB layout and reduces BOM count. |
Applications
| Photodiode Amplifier | Medical Instrumentation |
|---|---|
Use Scenario: Converting weak current from silicon photodiode (e.g., pulse oximetry sensor) into amplified voltage with minimal dark-current error. IC Role / Device Role: Transimpedance amplifier (TIA) with ultra-low input bias current and low 1/f noise. Use Value: 1pA max IB prevents diode leakage-induced baseline drift; 550nVP-P noise preserves SNR in low-light conditions. | Use Scenario: Front-end amplification of biopotential signals (ECG, EEG) where DC stability and low-frequency fidelity are critical. IC Role / Device Role: Precision DC-coupled instrumentation amplifier input stage with rail-to-rail output. Use Value: 125μV max VOS and 2.5μV/°C drift minimize calibration frequency; 30mV rail margin supports 3.3V ADC full-scale swing. |
| Charge-Coupled Amplifier | High-Impedance Transducer Interface |
Use Scenario: Integrating charge from piezoelectric accelerometers or MEMS microphones into proportional voltage. IC Role / Device Role: Charge amplifier with low input capacitance (3.5pF) and high input impedance. Use Value: 3.5pF CIN minimizes gain error and phase shift in feedback capacitor-based integrators. | Use Scenario: Signal conditioning for pH electrodes, ion-selective sensors, or capacitive humidity sensors with GΩ-level output impedance. IC Role / Device Role: High-Z buffer and gain stage preserving signal integrity without loading. Use Value: 1pA IB avoids polarization errors; rail-to-rail output maximizes dynamic range into low-voltage ADCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4898-2ARMZ | Higher 3.9nV/√Hz noise (1kHz), 200MHz GBW, ±15V supply capable; 10x higher IB (10pA typ) | Better for wideband AC-coupled video or RF IF stages; unsuitable for ultra-high-Z DC sensors | Select when bandwidth >50MHz required and source impedance <100MΩ |
| OPA2189IDR | Zero-drift architecture; 0.005μV/°C drift, 5.2nV/√Hz noise; 200pA IB; 12MHz GBW | Superior long-term DC stability for precision weigh scales; higher noise limits low-light photodiode use | Select when offset drift dominates error budget and 18MHz bandwidth is not required |
Compared with ADA4898-2ARMZ and OPA2189IDR, the LTC6241CDD#TRPBF uniquely balances ultra-low input bias current (≤1pA), low 1/f noise (550nVP-P), and 18MHz bandwidth - making it optimal for high-impedance, low-frequency, battery-operated measurement systems where both DC accuracy and moderate speed are required.
Availability
LTC6241CDD#TRPBF is available at Aetrix Electronics and suitable for photodiode amplification, medical biosignal acquisition, and high-impedance transducer interfacing requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for LTC6241CDD#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6241CDD#TRPBF belongs to ADI's legacy Linear Technology precision op amp family, engineered specifically for low-noise, low-input-bias, rail-to-rail signal conditioning in space-constrained, low-power instrumentation systems.
FAQ
What is the maximum operating temperature range for the LTC6241CDD#TRPBF?
The LTC6241CDD#TRPBF is rated for 0°C to 70°C specified operation, with full electrical performance guaranteed across that range. It is characterized for operation from –40°C to 85°C but not tested or QA sampled at those extremes. For extended temperature applications, consider the LTC6241IDD#TRPBF (–40°C to 85°C) or LTC6241HS8#TRPBF (–40°C to 125°C).
Does the LTC6241CDD#TRPBF require external compensation for unity-gain stability?
No, the LTC6241CDD#TRPBF is internally compensated and unity-gain stable. It drives capacitive loads up to 5pF without oscillation and does not require external compensation components - simplifying design in buffer, follower, and gain-of-1 configurations.
Can the LTC6241CDD#TRPBF operate from a single 3.3V supply?
Yes, the LTC6241CDD#TRPBF operates from a minimum 2.8V total supply, making it fully compatible with 3.3V single-supply systems. Its rail-to-rail output delivers >3.24Vpp swing, and the input common-mode range includes the negative rail - enabling direct interfacing with 3.3V ADCs and microcontrollers.
What is the typical input capacitance of the LTC6241CDD#TRPBF, and why does it matter?
The LTC6241CDD#TRPBF has 3.5pF differential-mode and 3pF common-mode input capacitance. This low value minimizes phase shift and gain error in high-frequency transimpedance amplifiers and ensures stability with small feedback capacitors - critical for photodiode and piezoelectric sensor interfaces.
How does the LTC6241CDD#TRPBF compare to the SO-8 version (LTC6241CS8#TRPBF) in performance?
The LTC6241CDD#TRPBF and LTC6241CS8#TRPBF share identical electrical specifications (125μV VOS max, 18MHz GBW, 1pA IB max), but the DFN package offers lower thermal resistance (θJA = 43°C/W vs. 190°C/W), improved high-frequency PSRR, and 60% smaller PCB footprint - advantageous for portable and space-constrained designs.
LTC6241CDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 2.4mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LTC6241CDD#TRPBF FAQ
1.How can I place an order for LTC6241CDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6241CDD#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 LTC6241CDD#TRPBF reliable?
The price and inventory of LTC6241CDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6241CDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6241CDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6241CDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6241CDD#TRPBF?
LTC6241CDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6241CDD#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 LTC6241CDD#TRPBF?
For technical support, including LTC6241CDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6241CDD#TRPBF requirements.
6.How does Aetrix verify that LTC6241CDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6241CDD#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 LTC6241CDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6241CDD#TRPBF?
All LTC6241CDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6241CDD#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 LTC6241CDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC6241CDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6241CDD#TRPBF 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…
