My Inquiry
My Account
Analog Devices Inc. LT6203IDD#PBF
- Part No.:
- LT6203IDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6203IDD#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:970
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT6203IDD#PBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input/output, ultralow-noise operational amplifier in an 8-lead 3mm × 3mm DFN package. 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 supply - optimized for low-power, high-fidelity signal conditioning in battery-backed data acquisition and DSL receivers.
For engineers reviewing the LT6203IDD#PBF datasheet, LT6203IDD#PBF pinout, LT6203IDD#PBF application, or LT6203IDD#PBF equivalent, key selection criteria include its guaranteed –40°C to 85°C operating range, 8-lead DFN thermal performance (θJA = 43°C/W), rail-to-rail output swing within 240mV of rails at 20mA sink/source, and channel-to-channel matching specs critical for differential receiver designs.
Technical Context
The LT6203IDD#PBF integrates two fully independent, unity-gain stable amplifiers with matched input bias current (≤0.6µA max mismatch), common-mode rejection ratio ≥75dB over –40°C to 85°C, and PSRR ≥60dB across 3V–10V supplies. Its input stage operates down to V– and up to V+, enabling true rail-to-rail input sensing in single-supply systems.
Each amplifier features a high-output-current capability (±30mA min short-circuit current), low distortion (–80dBc at 1MHz), and full-power bandwidth of 1.8MHz at 3VP–P output - supporting precision driving of ADC inputs and active filter stages without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Voltage Density | 1.9nV/√Hz at 100kHz - enables sub-µV signal amplification in sensor front-ends without dominating system noise floor |
| Gain Bandwidth Product | 100MHz - supports closed-loop gains up to 100 at 1MHz or unity gain at 100MHz for wideband filtering |
| Slew Rate | 25V/µs - ensures faithful reproduction of fast transients (e.g., pulse edges in DSL line receivers) |
| Supply Current per Amp | 2.5mA at 5V - allows dual-channel operation under 5.5mW total quiescent power for portable instrumentation |
| Input Common-Mode Range | Includes both rails (V– to V+) - eliminates level-shifting requirements in single-supply 3V/5V systems |
| Output Swing (20mA load) | Within 240mV of V+ and 260mV of V– - delivers >4.5VP–P dynamic range from 5V supply |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems and telecom infrastructure |
Pinout & Package
LT6203IDD#PBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with underside thermal pad connected to V–. The package provides low thermal resistance (θJA = 43°C/W) and compact footprint for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Amplifier A output | Drives loads up to ±30mA; rail-to-rail swing supports direct interface to SAR ADC reference buffers |
| 2: –IN A | Inverting input A | Differential pair input node; matched to +IN A for <1.3mV offset voltage match over temperature |
| 3: +IN A | Non-inverting input A | High-impedance input (4MΩ common-mode); accepts signals from V– to V+ |
| 4: V– | Negative supply / ground reference | Thermal pad connection point; must be soldered to PCB ground plane for thermal and noise performance |
| 5: V+ | Positive supply | Accepts 2.5V–12.6V; PSRR ≥60dB ensures immunity to supply ripple in mixed-signal systems |
| 6: OUT B | Amplifier B output | Independent output; enables dual-path signal processing (e.g., I/Q channel amplification) |
| 7: –IN B | Inverting input B | Matched to –IN A for channel-to-channel CMRR ≥80dB in differential configurations |
| 8: +IN B | Non-inverting input B | Electrically identical to +IN A; supports synchronous dual-amplifier topologies |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3V/5V single-supply systems without external level shifters or charge pumps |
| Ultralow 1.9nV/√Hz noise | Preserves SNR in low-amplitude sensor interfaces (e.g., piezoelectric accelerometers, medical ECG preamps) |
| 100MHz GBW with 25V/µs slew rate | Supports high-speed active filters and broadband signal conditioning up to 10MHz closed-loop bandwidth |
| Channel-to-channel matching | Offset voltage match ≤1.3mV and CMRR match ≥80dB enable precise differential receiver architectures |
| Low 2.5mA per amplifier supply current | Permits dual-channel operation in battery-powered devices with >100-hour runtime on coin-cell sources |
Applications
| DSL Line Receiver | Portable Data Acquisition |
|---|---|
Use Scenario: Amplifying differential analog signals from twisted-pair telephone lines in ADSL/VDSL modems. IC Role / Device Role / Timing Role: Dual-channel low-noise differential receiver front-end with local echo cancellation. Use Value: 1.9nV/√Hz noise and –80dBc harmonic distortion at 1MHz ensure clean signal recovery in high-frequency DSL bands. |
Use Scenario: Signal conditioning for 16-bit+ portable multimeters and handheld oscilloscopes. IC Role / Device Role / Timing Role: Rail-to-rail buffer and gain stage preceding SAR ADCs. Use Value: Full 0–5V input/output swing preserves resolution; 2.5mA per amp extends battery life without sacrificing bandwidth. |
| Rail-to-Rail Sensor Interface | Battery-Backed Instrumentation |
Use Scenario: Interfacing MEMS pressure sensors and thermopiles with output ranges spanning near-rail voltages. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with zero-input-offset drift compensation. Use Value: Input offset voltage drift ≤9µV/°C and rail-to-rail input allow accurate measurement across full sensor range. |
Use Scenario: Maintaining real-time clock and memory backup in industrial controllers during main power loss. IC Role / Device Role / Timing Role: Low-quiescent-current signal conditioner for RTC monitoring circuits. Use Value: 2.5mA per amplifier enables dual-channel monitoring while drawing <6mW from backup Li-ion cells. |
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 |
|---|---|---|---|
| OPA211AIDR | Lower noise (1.1nV/√Hz), higher supply current (3.6mA/amp), SO-8 only - no DFN option | Preferred for ultra-low-noise lab equipment; less suitable for space-constrained DSL modules | Select when noise floor is primary constraint and board area permits SO-8; avoid if thermal dissipation in DFN is required |
| ADA4898-2ARMZ | Higher slew rate (90V/µs), wider supply range (±5V to ±15V), MSOP-8 only - no DFN | Better for high-voltage active filters; not rated for –40°C to 85°C industrial temp range | Choose for bipolar supply systems requiring >10V output swing; not drop-in for LT6203IDD#PBF's DFN footprint or temp grade |
Compared with OPA211AIDR and ADA4898-2ARMZ, the LT6203IDD#PBF uniquely balances ultralow noise, rail-to-rail operation, DFN thermal efficiency, and industrial temperature qualification - making it optimal for compact, battery-aware, high-fidelity analog front-ends where layout area and thermal management are constrained.
Availability
LT6203IDD#PBF is available at Aetrix Electronics and suitable for DSL receivers, portable data acquisition systems, and battery-backed instrumentation requiring stable component supply across industrial temperature grades and long-lifecycle production.
Supply support for LT6203IDD#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, renowned for high-performance op amps, data converters, and power management ICs serving industrial, automotive, and communications markets.
The LT6203IDD#PBF belongs to Linear's LT620x family of ultralow-noise, rail-to-rail op amps designed specifically for high-fidelity signal conditioning in low-power, wideband applications such as DSL receivers and portable test equipment.
FAQ
What is the maximum supply voltage rating for LT6203IDD#PBF?
The absolute maximum total supply voltage (V+ to V–) for LT6203IDD#PBF is 12.6V, as specified in the Absolute Maximum Ratings table. Operation beyond this voltage risks permanent device damage. For reliable long-term use, Analog Devices recommends staying within the recommended 2.5V–12.6V operating range, with full specifications guaranteed at 3V, 5V, and ±5V supplies.
Does LT6203IDD#PBF support true rail-to-rail input with a single 3V supply?
Yes, LT6203IDD#PBF supports true rail-to-rail input operation from V– to V+ - including at 3V single-supply configurations. Its input common-mode range explicitly covers both supply rails across the full –40°C to 85°C temperature range, eliminating the need for external biasing networks in low-voltage sensor interfaces.
What is the thermal resistance (θJA) of the LT6203IDD#PBF DFN package?
The LT6203IDD#PBF in its 8-lead 3mm × 3mm DFN package has a junction-to-ambient thermal resistance (θJA) of 43°C/W, as documented in the Pin Configuration section. This low value is achieved via the underside metal pad connected to V–, which must be soldered to a PCB thermal plane for optimal heat dissipation and sustained performance at full load.
How does LT6203IDD#PBF perform in differential receiver applications?
LT6203IDD#PBF is well-suited for differential receiver applications due to its guaranteed channel-to-channel offset voltage match ≤1.3mV, CMRR match ≥80dB, and low 1.9nV/√Hz noise. These specs enable high common-mode rejection and minimal gain/phase mismatch between I/Q paths - critical for DSL echo cancellation and precision instrumentation front-ends.
Is LT6203IDD#PBF pin-compatible with other LT620x variants in DFN packages?
Yes, LT6203IDD#PBF shares identical pinout and footprint with LT6203CDD#PBF and LT6203HDD#PBF - all use the same 8-lead DFN (3mm × 3mm) package with standard dual-op-amp pin assignment. Only temperature grade and initial offset voltage distribution differ; no PCB redesign is needed when upgrading between C/I/H grades in the same DFN form factor.
LT6203IDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT6203IDD#PBF FAQ
1.How can I place an order for LT6203IDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6203IDD#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 LT6203IDD#PBF reliable?
The price and inventory of LT6203IDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6203IDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6203IDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6203IDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6203IDD#PBF?
LT6203IDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6203IDD#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 LT6203IDD#PBF?
For technical support, including LT6203IDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6203IDD#PBF requirements.
6.How does Aetrix verify that LT6203IDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6203IDD#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 LT6203IDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6203IDD#PBF?
All LT6203IDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6203IDD#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 LT6203IDD#PBF part is unused and in its original packaging.
Return procedure for LT6203IDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT6203IDD#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…
