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Analog Devices Inc. LT6600IS8-10
- Part No.:
- LT6600IS8-10
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6600IS8-10.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,492
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Product details
Overview
LT6600IS8-10 from Analog Devices (formerly Linear Technology) is a fully differential amplifier with integrated 4th-order 10MHz Chebyshev lowpass filter, designed for antialiasing and DAC smoothing in high-speed data acquisition systems. It delivers 82dB SNR at 3V supply with 2VP-P output, supports programmable gain via two external resistors, and operates from single 3V/5V or dual ±5V supplies.
For engineers reviewing the LT6600IS8-10 datasheet, LT6600IS8-10 pinout, LT6600IS8-10 application, or LT6600IS8-10 equivalent, key selection criteria include its fixed 10MHz cutoff, input-referred noise of 56μVRMS (10kHz–10MHz), differential distortion performance (–88dBc 2nd harmonic @1MHz), output common mode voltage control via VOCM, and SO-8 package compatibility with industrial temperature range (–40°C to 85°C).
Technical Context
The LT6600IS8-10 integrates a proprietary differential amplifier stage followed by a 4th-order lowpass filter with 0.5dB passband ripple and precisely trimmed 10MHz cutoff. Its internal architecture avoids external precision components while maintaining low distortion: –88dBc 2nd harmonic and –97dBc 3rd harmonic at 1MHz with 2VP-P output into 800Ω.
It features independent control of first-stage common mode (via VMID) and second-stage common mode (via VOCM), enabling flexible level-shifting for ADC reference alignment. The device achieves stable operation with 3V supply and maintains 82dB signal-to-noise ratio across the full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Filter Cutoff Frequency | 10MHz - fixed internal cutoff with 0.5dB Chebyshev passband ripple, eliminating need for external filter tuning. |
| Input-Referred Noise | 56μVRMS (10kHz–10MHz) - enables high-resolution digitization of small differential signals without SNR degradation. |
| Distortion @ 1MHz | –88dBc (2nd), –97dBc (3rd) - ensures clean spectral purity for baseband and IF sampling applications. |
| Supply Voltage Range | Single 3V or 5V; dual ±5V - supports low-power portable instrumentation and legacy 5V systems alike. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and telecom infrastructure environments without derating. |
| Differential Output Swing | 3.85VP-P (3V supply), 5.0VP-P (5V supply) - sufficient headroom for driving 12-bit+ SAR and pipeline ADCs. |
| Common Mode Rejection | 61dB - maintains accuracy when interfacing with noisy mixed-signal PCBs. |
Pinout & Package
LT6600IS8-10 uses an 8-lead plastic SO (SO-8) package with exposed lead frame for thermal enhancement. Pin 6 is fused to the lead frame to improve heat dissipation to PCB ground planes.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Differential Input Positive | Accepts input through external RIN; DC gain = 402Ω/RIN. Requires matched external resistor on IN– for balanced operation. |
| 2 (VOCM) | Output Common Mode Reference | High-impedance input setting average voltage at OUT+ and OUT–; bypass with 0.01μF ceramic capacitor. |
| 3 (V–) | Negative Supply Rail | Ground reference for single-supply operation; must be connected to system ground or negative rail. |
| 4 (OUT–) | Differential Output Negative | Delivers filtered, amplified inverted signal; capable of driving 100Ω load to AC ground. |
| 5 (OUT+) | Differential Output Positive | Delivers filtered, amplified non-inverted signal; paired with OUT– for true differential signaling. |
| 6 (V+) | Positive Supply Rail | Connect to 3V or 5V; requires 0.1μF ceramic bypass capacitor placed adjacent to pin. |
| 7 (VMID) | Internal Mid-Supply Bias Node | Internally biased at VS/2; must be bypassed to V– with 0.01μF capacitor for single-supply stability. |
| 8 (IN–) | Differential Input Negative | Complements IN+; identical external RIN required for gain accuracy and CMRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Antialiasing Filter | 4th-order 10MHz lowpass eliminates need for discrete RC or active filters, reducing BOM count and layout sensitivity. |
| Programmable Differential Gain | Set via two identical external RIN resistors (e.g., 402Ω → unity gain); avoids laser trimming or digital calibration. |
| Adjustable Output Common Mode | VOCM pin allows precise alignment of differential output midpoint to ADC reference voltage (e.g., 1.65V for 3.3V ADCs). |
| Low-Voltage Operation | Full performance at 3V supply enables battery-powered test equipment and portable medical devices. |
| Industrial Temperature Grade | Specified over –40°C to +85°C with no derating - suitable for base station RF front-ends and factory automation controllers. |
Applications
| High-Speed Data Acquisition | Medical Imaging Front-End |
|---|---|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring wide dynamic range and minimal aliasing. IC Role / Device Role / Timing Role: Antialiasing filter and differential driver preceding 12–16-bit pipeline ADCs sampling at 40–100MSPS. Use Value: 82dB SNR and –88dBc 2nd harmonic preserve image contrast resolution and reduce post-processing artifacts. |
Use Scenario: Conditioning analog outputs from CT detector arrays before digitization in computed tomography systems. IC Role / Device Role / Timing Role: Low-noise, low-distortion differential signal conditioner with precise common mode control for multi-channel ADC interfaces. Use Value: 56μVRMS input-referred noise and 61dB CMRR suppress crosstalk and power supply coupling in dense multichannel modules. |
| Cellular Base Station Receiver | Automated Test Equipment (ATE) |
Use Scenario: Filtering and amplifying IF signals in LTE/5G macrocell receiver chains prior to I/Q demodulation. IC Role / Device Role / Timing Role: Fixed 10MHz lowpass filter and differential driver ensuring compliance with channel selectivity masks. Use Value: 0.5dB Chebyshev ripple and sharp roll-off beyond 10MHz prevent adjacent-channel interference without custom filter design. |
Use Scenario: Driving high-precision DACs in ATE source-measure units generating calibrated analog stimulus waveforms. IC Role / Device Role / Timing Role: DAC output smoothing filter and level-shifting buffer matching DAC common mode to DUT input requirements. Use Value: Adjustable VOCM and VMID enable seamless interface to DUTs with varying input common mode ranges (0–2.5V, 1.25–3.75V, etc.). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential amplifier + lowpass filter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6600IS8-5 | 5MHz cutoff frequency; same SO-8 package and industrial temp grade; lower passband gain flatness tolerance (±0.1dB vs ±0.3dB at 10MHz). | Optimized for sub-10MHz bandwidth systems (e.g., audio test, legacy DAQ); not suitable for 10MHz+ Nyquist zones. | Select when system sampling rate ≤20MSPS and alias rejection above 5MHz is sufficient. |
| LT6600IS8-20 | 20MHz cutoff; higher distortion (–74dBc 2nd @5MHz); same pinout and VOCM/VMID control architecture. | Suitable for wider-bandwidth applications (e.g., broadband spectrum analyzers, high-speed oscilloscope front-ends) where 10MHz filtering is insufficient. | Choose when anti-aliasing must extend beyond 10MHz and SNR >75dB remains acceptable. |
Compared with LT6600IS8-5 and LT6600IS8-20, the LT6600IS8-10 provides the optimal balance of alias rejection at 10MHz Nyquist zones, low distortion for high-fidelity signal capture, and industrial-grade reliability-making it the preferred choice for 40–65MSPS data converters in telecom and medical systems.
Availability
LT6600IS8-10 is available at Aetrix Electronics and suitable for high-speed data acquisition, medical imaging front-ends, and cellular base station receiver designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6600IS8-10 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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LT6600 family was developed by Linear Technology (acquired by ADI in 2017) to simplify antialiasing and differential drive in high-speed data converter interfaces-replacing complex discrete solutions with a single IC delivering guaranteed 10MHz filter response and low-noise amplification.
FAQ
What is the operating temperature range for the LT6600IS8-10?
The LT6600IS8-10 is specified for continuous operation from –40°C to +85°C. This industrial temperature grade is verified across all electrical parameters including gain flatness, distortion, and noise performance-ensuring reliable function in base station cabinets, factory-floor controllers, and portable diagnostic equipment without thermal derating.
How is differential gain set on the LT6600IS8-10?
Differential gain on the LT6600IS8-10 is set by two identical external resistors (RIN) connected between IN+ and IN– and the signal source. The gain equals 402Ω/RIN; for example, 402Ω yields unity gain, 201Ω yields 2×, and 100Ω yields 4×. Matching tolerance of RIN directly impacts CMRR and gain accuracy-1% resistors are recommended.
Can the LT6600IS8-10 operate from a single 3V supply?
Yes, the LT6600IS8-10 is fully characterized and specified for single 3V operation. It delivers 82dB SNR and –88dBc 2nd harmonic distortion at 1MHz with 2VP-P output under 3V supply. VMID must be bypassed to V– with ≥0.01μF ceramic capacitor, and VOCM should be set ≤1.5V to maintain linearity.
What is the purpose of the VMID pin on the LT6600IS8-10?
The VMID pin on the LT6600IS8-10 provides the internal mid-supply bias voltage for the first amplifier stage's output common mode. It must be bypassed to V– with a 0.01μF ceramic capacitor in single-supply configurations. Driving VMID externally allows overriding the internal divider to optimize input common mode range or reduce DC current paths.
Does the LT6600IS8-10 require external passive components for basic operation?
Yes-the LT6600IS8-10 requires two matched external RIN resistors for gain programming, a 0.01μF capacitor on VOCM, a 0.01μF capacitor on VMID, and a 0.1μF ceramic capacitor between V+ and V–. These components are mandatory for stable operation, noise control, and common mode management; omission degrades distortion, SNR, and thermal performance.
LT6600IS8-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- -
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 µA
- Voltage - Input Offset:
- 8 mV
- Current - Supply:
- 36mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6600IS8-10 FAQ
1.How can I place an order for LT6600IS8-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6600IS8-10 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 LT6600IS8-10 reliable?
The price and inventory of LT6600IS8-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6600IS8-10 is usually 5 days.
3.What payment methods are accepted for LT6600IS8-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6600IS8-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6600IS8-10?
LT6600IS8-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6600IS8-10 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 LT6600IS8-10?
For technical support, including LT6600IS8-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6600IS8-10 requirements.
6.How does Aetrix verify that LT6600IS8-10 is sourced from the original manufacturer or authorized distributors?
All LT6600IS8-10 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 LT6600IS8-10 meets industry standards.
7.What is the process for return or replacement of LT6600IS8-10?
All LT6600IS8-10 units undergo pre-shipment inspection (PSI). If there is an issue with LT6600IS8-10, 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 LT6600IS8-10 part is unused and in its original packaging.
Return procedure for LT6600IS8-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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