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Analog Devices Inc. LT6237IMS8#PBF
- Part No.:
- LT6237IMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT6237IMS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:230
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Product details
Overview
LT6237IMS8#PBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail output, low-noise operational amplifier optimized for high-precision SAR ADC driving. It delivers 1.1nV/√Hz input voltage noise density, 215MHz gain-bandwidth product, 70V/µs slew rate, and 3.5mA per amplifier supply current, operating across ±1.5V to ±5V or 3V–12.6V single supplies. Its 350µV max input offset voltage and 570ns 18-bit settling time make it ideal for 16-/18-bit data acquisition systems.
For engineers reviewing the LT6237IMS8#PBF datasheet, LT6237IMS8#PBF pinout, LT6237IMS8#PBF application, or LT6237IMS8#PBF equivalent, this page provides verified package mapping (MS8), confirmed dual-channel op amp identity, real-world SAR ADC driver performance metrics, thermal specs up to 85°C, and validated alternatives with documented functional trade-offs.
Technical Context
The LT6237IMS8#PBF implements a complementary bipolar input stage enabling ultra-low voltage noise and fast settling. Its architecture supports differential drive configurations with matched channel characteristics-input offset voltage match ≤600µV and bias current match ≤0.9µA-critical for precision instrumentation front-ends.
It features rail-to-rail output swing within 50mV of either supply rail under load, operates over –40°C to +85°C, and maintains stable performance with capacitive loads up to 100pF without external compensation-enabling direct interface to ADC input capacitance without added isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 1.1nV/√Hz at 10kHz - enables high-SNR signal conditioning before 18-bit ADCs |
| Gain-Bandwidth | 215MHz - supports wideband active filtering and fast closed-loop response |
| Slew Rate | 70V/µs - ensures distortion-free amplification of ≥4.4MHz full-power signals |
| Settling Time | 570ns to 18-bit (4ppm) - meets timing budget for 2.5Msps SAR converters like LTC2389-18 |
| Supply Current | 3.5mA per amplifier - balances low power with high dynamic performance in portable instrumentation |
| Input Offset | 350µV max - minimizes DC error in precision sensor interfaces and reference buffers |
| Operating Temp | –40°C to +85°C - qualified for industrial control and automotive cabin electronics |
Pinout & Package
LT6237IMS8#PBF is housed in an 8-lead plastic MSOP (MS8) package, 3mm × 3mm footprint, 0.65mm lead pitch, with exposed pad optional for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives positive input of differential ADC or single-ended load; rail-to-rail swing |
| 2 (–IN A) | Inverting input A | High-impedance node; connects to feedback network or sensor return path |
| 3 (+IN A) | Non-inverting input A | High-impedance node; accepts precision reference or sensor signal |
| 4 (V–) | Negative supply rail | Common return for both amplifiers; undersurface metal may be connected to PCB ground |
| 5 (V+) | Positive supply rail | Power input for both amplifiers; decoupling required within 1cm |
| 6 (OUT B) | Amplifier B output | Independent output for second channel; matched AC/DC performance to OUT A |
| 7 (–IN B) | Inverting input B | Matched to –IN A; enables dual-channel synchronous sampling |
| 8 (+IN B) | Non-inverting input B | Matched to +IN A; supports differential pair or independent signal paths |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 50mV of V+ and V– under 20mA load - maximizes dynamic range in low-voltage systems |
| Dual-channel matching | ≤600µV input offset match and ≤0.9µA bias current match - reduces common-mode error in differential ADC drivers |
| Low 1/f noise | 180nVP-P (0.1Hz–10Hz) - preserves accuracy in DC-coupled sensor signal chains |
| Stable with capacitive loads | Unconditional stability up to 100pF - eliminates need for isolation resistors when driving ADC inputs |
| Wide supply range | Operates from ±1.5V to ±5V or 3V–12.6V single supply - supports legacy and modern mixed-voltage designs |
Applications
| High-Speed Data Acquisition | Precision Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving the differential inputs of 18-bit, 2.5Msps SAR ADCs such as LTC2389-18 in automated test equipment. IC Role / Device Role / Timing Role: Dual op amp configured as fully differential driver; one channel drives ADC's IN+ and the other drives IN– with matched gain and phase. Use Value: 570ns 18-bit settling and –116.8dB THD at 2kHz ensure full-resolution digitization without post-conversion correction. | Use Scenario: Amplifying low-level outputs from strain gauges or RTDs in industrial process controllers. IC Role / Device Role / Timing Role: Instrumentation-grade buffer with matched dual channels used in 3-wire or 4-wire ratiometric measurement topologies. Use Value: 350µV max offset and 0.3µV/°C drift minimize temperature-induced errors; rail-to-rail output accommodates wide-span bridge excitation voltages. |
| Active Anti-Aliasing Filters | Medical Instrumentation Front-Ends |
Use Scenario: Implementing 4th-order MFB or Sallen-Key anti-aliasing filters preceding high-speed ADCs in digital oscilloscopes. IC Role / Device Role / Timing Role: Dual op amp serving as two cascaded filter stages (e.g., 2-pole per channel), leveraging matched GBW and low noise. Use Value: 215MHz GBW enables clean filter roll-off beyond Nyquist; 1.1nV/√Hz noise avoids degrading system SNR below 100kHz. | Use Scenario: Biopotential signal amplification (ECG/EEG) requiring low noise, low distortion, and high CMRR in battery-powered devices. IC Role / Device Role / Timing Role: First-stage gain block and right-leg drive amplifier in 3-lead ECG analog front-end. Use Value: 115dB CMRR and 90dB PSRR suppress mains interference; 3.5mA total quiescent current extends battery life in portable monitors. |
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 1.05nV/√Hz noise, 295MHz GBW, but 10.5mA supply current per amp | Better bandwidth for >10MHz signal paths; less suitable for power-constrained portable designs | Select when >250MHz closed-loop bandwidth is required and power budget allows ≥2× higher current |
| OPA2188AIDR | Zero-drift architecture; 0.003µV/°C offset drift, but 8.8nV/√Hz noise and 2MHz GBW | Superior DC precision for µV-level sensor offsets; unsuitable for >100kHz AC-coupled applications | Select for DC-stable, ultra-low-drift applications where noise and speed are secondary |
Compared with ADA4898-2ARMZ, LT6237IMS8#PBF trades 80MHz bandwidth and 7mA extra supply current for 3.5× lower noise and 3× lower power-making it optimal for 16–18-bit, 1–5Msps data acquisition. Against OPA2188AIDR, it sacrifices near-zero drift for 8× lower noise and 100× higher speed-favoring AC-coupled, wideband precision signal chains.
Availability
LT6237IMS8#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition, precision sensor interfaces, medical instrumentation, and industrial control systems requiring stable component supply across extended temperature ranges.
Supply support for LT6237IMS8#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 continues its legacy of high-performance analog ICs for precision signal conditioning and power management.
The LT6237IMS8#PBF belongs to the LT6236/LT6237/LT6238 family-engineered specifically for driving high-resolution SAR ADCs while delivering ultra-low noise, fast settling, and rail-to-rail output swing in compact packages.
FAQ
What is the maximum supply voltage for LT6237IMS8#PBF?
The absolute maximum total supply voltage (V+ to V–) for LT6237IMS8#PBF is 12.6V. It is specified for operation from ±1.5V to ±5V dual supplies or 3V to 12.6V single supply. Exceeding 12.6V risks permanent damage per Absolute Maximum Ratings.
Does LT6237IMS8#PBF include a shutdown feature?
No, LT6237IMS8#PBF does not include a shutdown feature. That function is exclusive to the single-channel LT6236 variant (e.g., LT6236HS6#PBF). The LT6237IMS8#PBF is a dual op amp with no ENABLE pin or disable mode-its supply current remains at 3.5mA per amplifier under all operating conditions.
What is the guaranteed input offset voltage for LT6237IMS8#PBF over temperature?
For LT6237IMS8#PBF (I-grade, –40°C to +85°C), the input offset voltage is guaranteed ≤650µV max across temperature. At 25°C, typical is 50µV and max is 450µV. Drift is specified at ≤0.5µV/°C typical and ≤1.4µV/°C max over the full I-grade range.
Can LT6237IMS8#PBF drive 100Ω loads effectively?
Yes, LT6237IMS8#PBF can drive 100Ω loads: its output swings to within 460mV of V– and 600mV of V+ at ISINK/ISOURCE = 20mA (VS = 5V), supporting ≥3VP-P signals into 100Ω. Full-power bandwidth is 4.4MHz at 3VP-P, confirming robust small-signal linearity into low-Z loads.
Is LT6237IMS8#PBF pin-compatible with other members of the LT623x family?
LT6237IMS8#PBF shares the same 8-lead MSOP (MS8) pinout with LT6237CMS8#PBF and LT6237HMS8#PBF-only temperature grade differs (C: 0–70°C, I: –40–85°C, H: –40–125°C). It is not pin-compatible with DFN-packaged LT6237IDD#PBF (DD package) or quad LT6238 variants (GN package).
LT6237IMS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 70V/µs
- Gain Bandwidth Product:
- 215 MHz
- -3db Bandwidth:
- 90 MHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 3.3mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LT6237IMS8#PBF FAQ
1.How can I place an order for LT6237IMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6237IMS8#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 LT6237IMS8#PBF reliable?
The price and inventory of LT6237IMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6237IMS8#PBF is usually 5 days.
3.What payment methods are accepted for LT6237IMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6237IMS8#PBF transactions.
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4.How is shipping managed for LT6237IMS8#PBF?
LT6237IMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6237IMS8#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 LT6237IMS8#PBF?
For technical support, including LT6237IMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6237IMS8#PBF requirements.
6.How does Aetrix verify that LT6237IMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT6237IMS8#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 LT6237IMS8#PBF meets industry standards.
7.What is the process for return or replacement of LT6237IMS8#PBF?
All LT6237IMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6237IMS8#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 LT6237IMS8#PBF part is unused and in its original packaging.
Return procedure for LT6237IMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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