My Inquiry
My Account
Analog Devices Inc. LT6203XS8#PBF
- Part No.:
- LT6203XS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6203XS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:140
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT6203XS8#PBF from Analog Devices is a dual rail-to-rail input/output operational amplifier optimized for high-temperature operation (–40°C to 175°C), featuring 1.9nV/√Hz input voltage noise at 100kHz, 100MHz gain bandwidth product, and 2.5mA per amplifier supply current. It operates from 2.5V to 12.6V supplies and delivers ±30mA output drive, making it suitable for low-noise signal conditioning in downhole drilling instrumentation and avionics sensor front-ends.
For engineers reviewing the LT6203XS8#PBF datasheet, LT6203XS8#PBF pinout, LT6203XS8#PBF application, or LT6203XS8#PBF equivalent, key selection criteria include guaranteed high-temperature performance, ultralow noise density, rail-to-rail swing capability, and dual-amplifier matching specifications across –40°C to 175°C.
Technical Context
The LT6203XS8#PBF employs a parallel-input differential stage architecture with dual bias paths (Q1/Q4 and Q2/Q3) that enables true rail-to-rail common-mode input range. As VCM approaches either supply rail within ~1.5V, one input pair saturates while the other maintains feedback-reducing transconductance by half but preserving stability.
Its folded-cascode second stage drives a rail-to-rail output stage via a differential drive generator. Internal compensation capacitor C1 ensures unity-gain stability without sacrificing bandwidth, and the absence of series input resistors preserves ultralow 1.9nV/√Hz noise performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Voltage Density | 1.9nV/√Hz at 100kHz - sets minimum detectable signal floor in precision sensor interfaces |
| Gain Bandwidth Product | 100MHz - supports stable closed-loop operation up to 10MHz with gain ≥10 |
| Slew Rate | 25V/µs - enables full-scale settling of 4V output steps in <85ns at AV = –1 |
| Supply Current per Amp | 2.5mA at VS = 5V - balances low power with high-speed performance for battery-backed systems |
| Operating Temperature | –40°C to 175°C - qualified for continuous operation in downhole and heavy industrial environments |
| Input Offset Voltage Max | 2.5mV at TA = 175°C - ensures DC accuracy retention under extreme thermal stress |
| Output Drive Current | ±30mA - directly drives 50Ω loads or ADC input buffers without external gain stages |
Pinout & Package
LT6203XS8#PBF is housed in an 8-lead plastic SOIC (S8) package with standard dual op amp pinout and JEDEC MS-012AC footprint. Thermal resistance θJA = 190°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Amplifier A output | Rail-to-rail swing capable; sources/sinks ≥15mA over full temperature range |
| –IN A (Pin 2) | Inverting input A | Valid common-mode range: V– to V+; protected by back-to-back diodes |
| +IN A (Pin 3) | Non-inverting input A | Same CM range and protection as Pin 2; matched offset voltage ≤0.8mV vs B channel |
| V– (Pin 4) | Negative supply | Supports single-supply (0V) or split-supply (±1.25V to ±5V) operation |
| +IN B (Pin 5) | Non-inverting input B | Identical specs to Pin 3; channel-to-channel CMRR match ≥85dB |
| –IN B (Pin 6) | Inverting input B | Identical specs to Pin 2; input bias current match ≤0.6µA |
| OUT B (Pin 7) | Amplifier B output | Functionally identical to Pin 1; independent output stage with same drive capability |
| V+ (Pin 8) | Positive supply | Total supply voltage must be 2.5V–12.6V; PSRR ≥60dB over full range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in low-voltage (3V) and high-voltage (12.6V) systems without level-shifting circuitry |
| 175°C qualification | Guaranteed parametric performance over full industrial downhole temperature range, eliminating derating calculations |
| Ultralow 1.9nV/√Hz noise | Matches discrete JFET amplifier noise floors while delivering integrated dual-channel convenience and matching |
| Channel matching | Offset voltage match ≤0.8mV and CMRR match ≥85dB enable precision differential signal conditioning |
| No internal input resistors | Preserves intrinsic noise performance-adding 100Ω series resistance would raise noise to 2.6nV/√Hz |
Applications
| Downhole Drilling Sensors | Avionics Signal Conditioning |
|---|---|
Use Scenario: Amplifying low-level piezoelectric sensor outputs in oil/gas wellbore tools exposed to 175°C ambient. IC Role / Device Role / Timing Role: Primary front-end gain stage with rail-to-rail input to capture full sensor swing and ultralow noise to resolve microvolt-level seismic signals. Use Value: Eliminates need for external heater-cooler subsystems by operating reliably at junction temperatures up to 200°C. | Use Scenario: Buffering and filtering inertial measurement unit (IMU) analog outputs in flight control electronics. IC Role / Device Role / Timing Role: Dual-channel rail-to-rail buffer driving 16-bit SAR ADC inputs while rejecting engine vibration-induced common-mode noise. Use Value: 90dB typical CMRR and 85dB channel-matched CMRR suppress EMI coupling across dual-axis sensor pairs. |
| Heavy Industrial PLC Inputs | Battery-Backed Data Acquisition |
Use Scenario: Isolating and scaling 4–20mA loop signals in steel mill programmable logic controllers operating near furnaces. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with matched dual channels enabling simultaneous multi-sensor monitoring. Use Value: Guaranteed 2.5mV max input offset at 175°C ensures <0.01% FS error drift over lifetime without recalibration. | Use Scenario: Low-power signal amplification in portable environmental monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual low-noise amplifier providing gain and anti-alias filtering before ultra-low-power ADC sampling. Use Value: 2.5mA per amplifier supply current extends battery life >6 months while maintaining 100kHz bandwidth for transient detection. |
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 |
|---|---|---|---|
| LT6200CS8#PBF | Lower temperature grade (–40°C to 85°C); identical noise (1.9nV/√Hz) and GBW (100MHz), but no 175°C qualification | Not suitable for downhole or avionics; limited to commercial/industrial ambient environments | Select when high-temperature operation is unnecessary and cost optimization is prioritized |
| ADA4898-2ARZ | Higher supply current (10.5mA/amp); lower noise (1.0nV/√Hz); same rail-to-rail output but input CM range excludes negative rail | Superior noise performance for lab-grade instrumentation; unsuitable for single-supply 0V-referenced sensors | Select when ultimate noise floor matters more than power or input range, and temperature stays <125°C |
Compared with LT6200CS8#PBF and ADA4898-2ARZ, the LT6203XS8#PBF uniquely combines 175°C operation, rail-to-rail input, and 1.9nV/√Hz noise in a dual configuration-enabling single-part solutions in harsh-environment signal chains where alternatives require thermal derating or external level-shifting.
Availability
LT6203XS8#PBF is available at Aetrix Electronics and suitable for downhole drilling instrumentation, avionics signal conditioning, and heavy industrial PLC inputs requiring stable component supply across extended temperature ranges.
Supply support for LT6203XS8#PBF 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 is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies.
The LT6203X product line was designed specifically for high-reliability signal conditioning in extreme-temperature environments-including oilfield, aerospace, and industrial automation systems-where conventional op amps fail.
FAQ
What is the maximum junction temperature rating for the LT6203XS8#PBF?
The LT6203XS8#PBF has an absolute maximum junction temperature of 200°C and is fully specified over –40°C to 175°C ambient. Its thermal resistance θJA = 190°C/W allows direct mounting on standard PCBs in high-temperature enclosures without additional heatsinking under typical load conditions. This specification is validated per Analog Devices' high-temperature qualification protocol for the LT6203X family.
Does the LT6203XS8#PBF support true rail-to-rail input common-mode range?
Yes, the LT6203XS8#PBF supports a true rail-to-rail input common-mode voltage range from V– to V+, verified across –40°C to 175°C. Its parallel-input topology (Q1/Q4 and Q2/Q3) maintains functionality even when VCM is within 100mV of either supply rail, unlike conventional op amps that lose phase inversion or exhibit increased offset drift near rails.
What is the guaranteed minimum output drive capability of the LT6203XS8#PBF at 175°C?
The LT6203XS8#PBF guarantees ±15mA output sink/source capability over the full –40°C to 175°C temperature range, as confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the official datasheet. At room temperature, short-circuit current reaches ±30mA, but the 175°C minimum ensures robust interface to ADC drivers and active filters in harsh environments.
How does the LT6203XS8#PBF achieve 1.9nV/√Hz noise without internal input resistors?
The LT6203XS8#PBF achieves 1.9nV/√Hz noise by omitting series input resistors-whose thermal noise would degrade performance-and instead using rugged back-to-back diode protection (D1/D2) directly across the inputs. This preserves the intrinsic noise floor of its bipolar input stage while allowing ±40mA differential input current limiting, as documented in Note 2 of the datasheet.
Is the LT6203XS8#PBF pin-compatible with standard dual SO-8 op amps?
Yes, the LT6203XS8#PBF uses the industry-standard dual op amp pinout in an 8-lead SOIC package (JEDEC MS-012AC), matching pin-for-pin the LM358, OP2177, and AD8602 footprints. Pin 1 is OUT A, Pin 2 is –IN A, Pin 3 is +IN A, Pin 4 is V–, Pin 5 is +IN B, Pin 6 is –IN B, Pin 7 is OUT B, and Pin 8 is V+, enabling drop-in replacement in existing layouts.
LT6203XS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 1.3 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 3.3mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -40°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6203XS8#PBF FAQ
1.How can I place an order for LT6203XS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6203XS8#PBF 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 LT6203XS8#PBF reliable?
The price and inventory of LT6203XS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6203XS8#PBF is usually 5 days.
3.What payment methods are accepted for LT6203XS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6203XS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6203XS8#PBF?
LT6203XS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6203XS8#PBF 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 LT6203XS8#PBF?
For technical support, including LT6203XS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6203XS8#PBF requirements.
6.How does Aetrix verify that LT6203XS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT6203XS8#PBF 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 LT6203XS8#PBF meets industry standards.
7.What is the process for return or replacement of LT6203XS8#PBF?
All LT6203XS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6203XS8#PBF, 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 LT6203XS8#PBF part is unused and in its original packaging.
Return procedure for LT6203XS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT6203XS8#PBF 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…
