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Analog Devices Inc. LT1810CS8#PBF
- Part No.:
- LT1810CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1810CS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,854
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Product details
Overview
LT1810CS8#PBF from Analog Devices (formerly Linear Technology) is a dual rail-to-rail input and output operational amplifier optimized for high-speed, low-distortion signal conditioning. It delivers 350 V/µs slew rate, 320 MHz –3dB bandwidth at unity gain, 180 MHz gain-bandwidth product (AV ≥ 10), and –90 dBc distortion at 5 MHz - enabling precision ADC driving and video line buffering in 3V to ±5V systems.
For engineers reviewing the LT1810CS8#PBF datasheet, LT1810CS8#PBF pinout, LT1810CS8#PBF application, or LT1810CS8#PBF equivalent, this page provides verified package mapping (8-pin SO), confirmed dual-amplifier topology, rail-to-rail I/O swing within 20 mV of rails, 85 mA output current capability, and temperature-stable performance across 0°C to 70°C.
Technical Context
The LT1810CS8#PBF integrates two independent high-speed op amps sharing a common supply domain, each featuring complementary differential input stages (NPN/PNP) to achieve rail-to-rail common-mode input range and full rail-to-rail output swing. Its architecture supports stable operation with capacitive loads up to 1000 pF when series output resistance is applied.
It operates from single supplies as low as 2.5 V or split supplies up to ±6.3 V, with shutdown functionality per amplifier enabled via dedicated SHDN pins (Pin 5 for Amp A, Pin 6 for Amp B in SO-8). Input overvoltage tolerance beyond rails and no phase reversal under overdrive are guaranteed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3dB Bandwidth | 320 MHz at AV = 1 - enables wideband closed-loop designs without stability compromise. |
| Slew Rate | 350 V/µs - supports fast settling of large-signal transients in data acquisition front-ends. |
| Output Current | ±85 mA - drives heavy loads including 100 Ω video lines or SAR ADC reference buffers directly. |
| Input Offset Voltage | ≤3.5 mV (max, 0°C to 70°C) - ensures DC accuracy in precision gain stages and sensor interfaces. |
| THD @ 5 MHz | –90 dBc - meets SNR requirements for 12-bit+ ADC drivers and communication channel conditioning. |
| Supply Range | 2.5 V to 12.6 V total - compatible with battery-powered, industrial 3.3 V, and legacy ±5 V systems. |
| Operating Temp | 0°C to 70°C - qualified for commercial-grade embedded instrumentation and test equipment. |
Pinout & Package
LT1810CS8#PBF is housed in an 8-lead plastic SO (Small Outline) package with standard dual op amp pinout and exposed V– pad for thermal management (θJA = 100°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking 85 mA while swinging within 20 mV of either rail. |
| 2 | –IN A | Inverting input of Amp A - rail-to-rail common-mode range includes both supply rails. |
| 3 | +IN A | Non-inverting input of Amp A - matched bias current and offset voltage to Amp B (channel-to-channel specs provided). |
| 4 | V– | Negative supply terminal - also serves as thermal path; PCB copper area improves power dissipation. |
| 5 | SHDN A | Shutdown control for Amp A - logic-low (<0.3 V) disables Amp A, reducing quiescent current to ≤1.4 mA. |
| 6 | SHDN B | Shutdown control for Amp B - independent enable/disable allows dynamic power scaling in multi-stage circuits. |
| 7 | OUT B | Amplifier B output - identical AC/DC performance to OUT A; supports dual-path signal processing. |
| 8 | V+ | Positive supply terminal - accepts 2.5 V to 12.6 V total supply; PSRR >83 dB minimizes supply noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Input common-mode range extends from V– to V+; output swings to within 20 mV of either rail - maximizes dynamic range in low-voltage systems. |
| Low distortion at high frequency | –90 dBc THD at 5 MHz enables clean signal amplification for 10+ Msps data converters without external filtering. |
| Independent shutdown per amplifier | Dedicated SHDN pins (Pins 5 & 6) allow selective disabling of one amplifier to reduce system power by ~15 mA per channel. |
| Robust input stage | Back-to-back diode protection allows safe overvoltage input up to ±VS without damage or phase reversal - simplifies front-end protection design. |
| High output drive capability | 85 mA short-circuit current supports direct driving of 150 Ω video loads or 100 Ω ADC inputs without external buffers. |
Applications
| High-Speed ADC Driver | Video Line Driver |
|---|---|
Use Scenario: Driving the analog input of a 12-bit, 10 Msps SAR ADC in a portable data logger. IC Role / Device Role / Timing Role: Buffer and level-shift sensor output to match ADC reference range while preserving transient fidelity. Use Value: 350 V/µs slew rate and –90 dBc distortion ensure <0.5 LSB integral nonlinearity error at full-scale step response. | Use Scenario: Transmitting composite NTSC video signals over 75 Ω coaxial cable in security camera systems. IC Role / Device Role / Timing Role: Final-stage line driver with gain = 2, DC-coupled, and impedance-matched output. Use Value: ΔG = 0.01% and Δθ = 0.01° meet broadcast-grade video spec; 150 Ω drive capability eliminates need for external emitter follower. |
| Rail-to-Rail Sensor Interface | Active Filter Stage |
Use Scenario: Amplifying output of a 0–2.5 V MEMS pressure sensor powered from a 3.3 V rail in medical wearable devices. IC Role / Device Role / Timing Role: Precision gain stage with unity-gain buffer configuration and rail-to-rail I/O compatibility. Use Value: Input offset ≤3.5 mV and CMRR ≥80 dB maintain sub-0.1% measurement accuracy across temperature. | Use Scenario: Implementing a 4th-order Butterworth low-pass filter (fc = 20 MHz) in RF receiver baseband chain. IC Role / Device Role / Timing Role: Dual-op-amp biquad section with high GBW and low phase margin sensitivity. Use Value: 180 MHz GBW and 320 MHz unity-gain bandwidth support stable 20 MHz filter response with <0.1° group delay variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4897-2ARMZ | Lower 1 nV/√Hz input noise vs. LT1810's 16 nV/√Hz; 225 MHz GBW vs. 180 MHz; no shutdown pins. | Better suited for low-noise preamp stages; lacks independent shutdown - unsuitable where dynamic power gating is required. | Select ADA4897-2ARMZ only if noise dominates system SNR budget and shutdown is unnecessary. |
| OPA2837IDR | Higher 400 V/µs slew rate; 200 MHz GBW; rail-to-rail output only (not input); 1.2 mA lower quiescent current per amp. | Cannot accept input signals beyond rails; limited common-mode range reduces flexibility in sensor interface designs. | Choose OPA2837IDR when input overvoltage is not expected and maximum slew rate is critical for pulse fidelity. |
Compared with ADA4897-2ARMZ and OPA2837IDR, the LT1810CS8#PBF uniquely combines rail-to-rail input *and* output, dual independent shutdown, and robust ±VS input tolerance - making it the only option among the three qualified for mixed-supply sensor front-ends requiring dynamic power control.
Availability
LT1810CS8#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition, video signal routing, precision sensor interfacing, and active filter design requiring stable component supply and long-term production continuity.
Supply support for LT1810CS8#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 full product support, documentation, and manufacturing continuity for all Linear op amp families.
The LT1809/LT1810 family was designed specifically for high-fidelity, high-speed analog signal conditioning in space-constrained, low-voltage systems - emphasizing rail-to-rail operation, low distortion, and robust input protection.
FAQ
What is the maximum supply voltage for LT1810CS8#PBF?
The absolute maximum total supply voltage (V+ to V–) for LT1810CS8#PBF is 12.6 V. Operation is specified from 2.5 V to 12.6 V total supply, including single 3 V, 5 V, or dual ±5 V configurations. Exceeding 12.6 V risks permanent damage per Absolute Maximum Ratings.
Does LT1810CS8#PBF support rail-to-rail input and output simultaneously?
Yes, LT1810CS8#PBF supports true rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing (within 20 mV of either rail under load). This dual rail-to-rail capability is explicitly characterized in the datasheet across all supply conditions and temperature ranges.
Can LT1810CS8#PBF drive a 100 Ω load at 5 MHz with low distortion?
Yes - LT1810CS8#PBF delivers –90 dBc THD at 5 MHz into 1 kΩ and maintains <–70 dBc into 100 Ω (per Figure 1809 G34), with 85 mA output current ensuring stable 2 VP-P swing. This meets requirements for high-resolution ADC drivers and video line transmission.
What is the function of Pins 5 and 6 on LT1810CS8#PBF?
Pins 5 and 6 are independent shutdown control inputs for Amplifier A and Amplifier B respectively. Driving either pin to ≤0.3 V disables its associated amplifier, reducing supply current to ≤1.4 mA per channel while maintaining high-impedance output state - enabling dynamic power management in multi-stage circuits.
Is LT1810CS8#PBF pin-compatible with other dual op amps in SO-8 packages?
No - LT1810CS8#PBF uses a proprietary SO-8 pinout with dedicated SHDN pins (5 & 6) and no NC pins. It is not pin-compatible with industry-standard dual op amps like LM358 or AD8620. Board layout must follow the exact LT1810CS8#PBF pin mapping shown in the datasheet.
LT1810CS8#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:
- 350V/µs
- Gain Bandwidth Product:
- 180 MHz
- -3db Bandwidth:
- 320 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 800 µV
- Current - Supply:
- 15mA (x2 Channels)
- Current - Output / Channel:
- 85 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
LT1810CS8#PBF FAQ
1.How can I place an order for LT1810CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1810CS8#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 LT1810CS8#PBF reliable?
The price and inventory of LT1810CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1810CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1810CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1810CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1810CS8#PBF?
LT1810CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1810CS8#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 LT1810CS8#PBF?
For technical support, including LT1810CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1810CS8#PBF requirements.
6.How does Aetrix verify that LT1810CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1810CS8#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 LT1810CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1810CS8#PBF?
All LT1810CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1810CS8#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 LT1810CS8#PBF part is unused and in its original packaging.
Return procedure for LT1810CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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