Analog Devices Inc. LT6203CS8#TRPBF
- Part No.:
- LT6203CS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6203CS8#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:

- Shipping:

Inventory:4,445
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Product details
Overview
LT6203CS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input and output operational amplifier optimized for low-noise, low-power signal conditioning in 3V–5V systems. It delivers 1.9nV/√Hz input voltage noise at 100kHz, 100MHz gain bandwidth, 25V/µs slew rate, and draws only 2.5mA per amplifier at 5V - enabling high-fidelity analog front-ends in DSL receivers, A/D driver stages, and battery-powered instrumentation.
For engineers reviewing the LT6203CS8#TRPBF datasheet, LT6203CS8#TRPBF pinout, LT6203CS8#TRPBF application, or LT6203CS8#TRPBF equivalent, key selection criteria include its guaranteed 0°C to 70°C operation, SO-8 package with standard dual op amp pinout, rail-to-rail output swing within 25mV of rails at 5mA, and –80dBc harmonic distortion at 1MHz - critical for precision data acquisition and low-distortion active filtering.
Technical Context
The LT6203CS8#TRPBF employs a proprietary bipolar complementary input stage enabling simultaneous rail-to-rail input common-mode range (including both supply rails) and rail-to-rail output swing. Its unity-gain-stable architecture supports direct use in buffer, gain-of-two, and transimpedance configurations without external compensation.
It features matched internal transistor pairs ensuring ≤0.3mV channel-to-channel input offset voltage match and ≥83dB common-mode rejection ratio (CMRR) over 0°C–70°C - making it suitable for differential signal conditioning where amplifier pair tracking directly impacts system accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Voltage Density | 1.9nV/√Hz at 100kHz - enables sub-1µV RMS integrated noise in 10kHz-bandwidth sensor interfaces |
| Gain Bandwidth Product | 100MHz - supports stable closed-loop gain ≥10 up to 10MHz, sufficient for anti-aliasing filter design |
| Slew Rate | 25V/µs - ensures <85ns settling to 0.1% for 2V step, critical for driving SAR ADC inputs |
| Supply Current per Amp | 2.5mA max at 5V - allows dual-channel operation under 5.5mW total quiescent power |
| Input Offset Voltage | 0.7mV max at 25°C, VCM = half-supply - reduces DC error in precision gain stages without trimming |
| Output Swing (5mA load) | Within 25mV of V+ and 50mV of V− at 5V supply - preserves dynamic range when driving 12-bit+ ADCs |
| Harmonic Distortion | –80dBc at 1MHz - meets SFDR >80dB for baseband signal chains in DSL and medical front-ends |
Pinout & Package
LT6203CS8#TRPBF is housed in an 8-lead plastic SO (S8) package, 4.9mm × 3.9mm × 1.48mm, with industry-standard dual op amp pinout and RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Capable of sourcing/sinking ≥30mA; swings rail-to-rail into 1kΩ load |
| 2 (–IN A) | Inverting input A | High-impedance node (12kΩ differential); accepts signals from V– to V+ |
| 3 (+IN A) | Non-inverting input A | Same common-mode range as –IN A; matched bias current minimizes offset drift |
| 4 (V–) | Negative supply rail | Reference for both amplifiers; undersurface thermal pad not present in SO-8 |
| 5 (V+) | Positive supply rail | Accepts 2.5V to 12.6V single supply or ±1.25V to ±5V dual supply |
| 6 (OUT B) | Amplifier B output | Electrically identical to OUT A; independent output stage with no crosstalk |
| 7 (–IN B) | Inverting input B | Matched to –IN A for differential applications; CMRR ≥83dB typical |
| 8 (+IN B) | Non-inverting input B | Matched to +IN A; enables precise dual-channel gain/phase matching |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs at V– or V+, eliminating level-shifting circuitry in single-supply systems |
| Low 1.9nV/√Hz input voltage noise | Preserves SNR in low-level sensor amplification (e.g., piezoelectric, strain gauge) without added gain-stage noise |
| Unity-gain stability | Configurable as buffer, inverter, or integrator without external compensation components |
| Channel-to-channel offset match ≤0.3mV | Enables accurate differential amplification and matched filter banks without per-channel calibration |
| Specified performance from 0°C to 70°C | Guaranteed electrical behavior across commercial temperature range - simplifies qualification for industrial control modules |
Applications
| DSL Receiver Front-End | Rail-to-Rail Buffer Amplifier |
|---|---|
Use Scenario: Conditioning upstream/downstream line signals in ADSL/VDSL modems with 25kHz–150kHz bandwidth. IC Role / Device Role / Timing Role: Dual-channel differential receiver amplifier with matched gain and phase response. Use Value: Integrated noise of 2.5µVRMS (25kHz–150kHz) improves line SNR by ≥3dB versus legacy op amps. | Use Scenario: Isolating high-impedance sensor outputs (e.g., pH electrode, thermopile) before ADC sampling. IC Role / Device Role / Timing Role: Unity-gain voltage follower with rail-to-rail I/O and <85ns settling time. Use Value: Maintains full input dynamic range across 0–5V supply; eliminates clipping at supply extremes. |
| Low-Power Data Acquisition System | Battery-Powered Instrumentation |
Use Scenario: Driving 12-bit SAR ADC inputs in portable test equipment with 100ksps sampling. IC Role / Device Role / Timing Role: Low-distortion, fast-settling driver with 0.05% differential gain error. Use Value: –80dBc THD at 1MHz ensures <0.025% harmonic-induced code uncertainty in ADC transfer function. | Use Scenario: Signal conditioning in handheld gas analyzers requiring 10-year battery life. IC Role / Device Role / Timing Role: Dual-channel analog front-end consuming <5.5mW total at 5V supply. Use Value: 2.5mA per amplifier enables >200 hours of continuous operation on a 1000mAh Li-ion cell. |
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 |
|---|---|---|---|
| OPA2350UA/2K5 | Higher 7nV/√Hz noise, 38MHz GBW, 22V/µs slew rate; 5.5V max supply | Lower bandwidth limits use in >5MHz active filters; higher noise degrades SNR in sensor front-ends | Select when supply is strictly ≤5.5V and ultra-low noise is secondary to cost |
| AD8622ARZ | Lower 5.2nV/√Hz noise but only 25MHz GBW; rail-to-rail I/O; 2.7–12V supply | Insufficient bandwidth for DSL receiver IF stages; better for DC-coupled precision buffers | Select when DC accuracy and low offset drift dominate over speed and noise |
Compared with OPA2350UA/2K5 and AD8622ARZ, the LT6203CS8#TRPBF uniquely balances 100MHz bandwidth, 1.9nV/√Hz noise, and rail-to-rail operation - making it optimal for wideband, low-noise, single-supply signal chains where both speed and fidelity are non-negotiable.
Availability
LT6203CS8#TRPBF is available at Aetrix Electronics and suitable for DSL receivers, battery-powered instrumentation, and low-power data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LT6203CS8#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 and maintains its high-performance analog portfolio, emphasizing precision, speed, and power efficiency in signal conditioning ICs.
The LT6203 belongs to Linear's ultralow-noise, rail-to-rail op amp family designed specifically for demanding signal integrity applications in communications infrastructure, test equipment, and portable medical devices.
FAQ
What is the maximum supply voltage rating for LT6203CS8#TRPBF?
The LT6203CS8#TRPBF has an absolute maximum total supply voltage (V+ to V–) of 12.6V. It operates reliably across a recommended supply range of 2.5V to 12.6V single supply or ±1.25V to ±5V dual supply. Exceeding 12.6V risks permanent damage per Absolute Maximum Ratings.
Does LT6203CS8#TRPBF support rail-to-rail input and output simultaneously?
Yes, the LT6203CS8#TRPBF supports rail-to-rail input common-mode voltage (from V– to V+) and rail-to-rail output swing (within 25mV of V+ and 50mV of V– at 5V/5mA). This enables true single-supply operation without external level-shifting components in both input and output paths.
What is the guaranteed operating temperature range for LT6203CS8#TRPBF?
The LT6203CS8#TRPBF is the commercial-grade variant, specified and tested over 0°C to 70°C ambient temperature. Electrical parameters including input offset voltage, CMRR, and GBW are guaranteed within this range per the datasheet's "C" grade specifications.
Can LT6203CS8#TRPBF drive a 100Ω load effectively?
The LT6203CS8#TRPBF guarantees ≥30mA output current per amplifier, enabling direct drive of 100Ω loads at ±1.5V swing (3Vpp) with minimal distortion. At 5V supply, it delivers >2.9Vpp into 100Ω while maintaining –80dBc THD at 1MHz - verified in Typical Performance Characteristics.
Is LT6203CS8#TRPBF pin-compatible with other dual op amps in SO-8 packages?
Yes, the LT6203CS8#TRPBF uses the industry-standard dual op amp pinout (pin 1=OUT A, pin 2=–IN A, pin 3=+IN A, pin 4=V–, pin 5=V+, pin 6=OUT B, pin 7=–IN B, pin 8=+IN B), matching SO-8 footprints of LM358, TL072, and OPA234 - enabling drop-in replacement where bandwidth and noise requirements align.
LT6203CS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 25V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3.8 µA
- Voltage - Input Offset:
- 2.6 mV
- Current - Supply:
- 2.8mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6203CS8#TRPBF FAQ
1.How can I place an order for LT6203CS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6203CS8#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 LT6203CS8#TRPBF reliable?
The price and inventory of LT6203CS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6203CS8#TRPBF is usually 5 days.
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Once your LT6203CS8#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 LT6203CS8#TRPBF?
For technical support, including LT6203CS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6203CS8#TRPBF requirements.
6.How does Aetrix verify that LT6203CS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6203CS8#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 LT6203CS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6203CS8#TRPBF?
All LT6203CS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6203CS8#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 LT6203CS8#TRPBF part is unused and in its original packaging.
Return procedure for LT6203CS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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