LTC1560-1IS8 Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC1560-1IS8 is a continuous-time, low-noise elliptic lowpass filter IC from Analog Devices with selectable 1 MHz or 500 kHz cutoff frequency in an SO-8 package. Key specs include ±5 V supply operation, pin-selectable cutoff, and deep stopband attenuation for anti-aliasing in high-speed data acquisition systems. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LTC1560-1IS8 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Pin-selectable cutoff frequency: 1 MHz or 500 kHz for design flexibility
- Continuous-time elliptic filter topology provides deep stopband attenuation
- Low noise for high-dynamic-range anti-aliasing ahead of ADCs
- ±5 V supply (±4.5 V to ±5.5 V) for compatibility with bipolar signal chains
- SO-8 package enables compact single-chip anti-aliasing filter solution
- No external components required for filter response
Applications
The LTC1560-1IS8 serves as a complete anti-aliasing filter for high-speed ADC inputs in data acquisition systems sampling at 1 MHz to 2 MHz rates, eliminating external RC networks and active op-amp filter stages. Its selectable 1 MHz and 500 kHz cutoff frequencies allow a single board design to support two different ADC sample rates by toggling a single pin. Medical imaging, ultrasound signal processing, and precision instrumentation use this continuous-time elliptic filter to achieve steep roll-off and flat passband response without discrete component matching.
Specifications
| YTEOL | 0 |
| Active Filter Type | CONTINUOUS TIME FILTER |
| Center or Cutoff Freq Rng-Max | 1000kHz |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e0 |
| Neg Supply Voltage-Max (Vsup) | -5.5 V |
| Neg Supply Voltage-Min (Vsup) | -4.5 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Poles and Zeros | 5 AND 0 |
| Qualification Status | Not Qualified |
| Response | LOWPASS |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Transfer Characteristics | ELLIPTIC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTC1560-1IS8 allow a single PCB design to support two different ADC sample rates?
The LTC1560-1IS8 provides a pin-selectable cutoff frequency of either 1 MHz or 500 kHz, so pulling the select pin high or low switches the anti-aliasing filter corner frequency to match ADC sample rates of 2 MSPS or 1 MSPS respectively. This eliminates the need to stock two different filter ICs or redesign the passive filter network when the system needs to operate at different bandwidths, reducing both inventory cost and PCB redesign time.
What supply voltage does LTC1560-1IS8 require, and is it compatible with ±5 V analog signal chains?
The LTC1560-1IS8 requires a dual supply of ±4.5 V to ±5.5 V, nominally ±5 V, making it directly compatible with traditional ±5 V analog front-end signal chains used in precision instrumentation and data acquisition. This bipolar supply allows the filter to process full bipolar analog signals centered around 0 V without level-shifting circuitry, supporting signal swings up to several volts peak-to-peak through the passband with minimal distortion.
For an ultrasound front-end design, what filter topology does LTC1560-1IS8 implement and why does it matter?
The LTC1560-1IS8 implements a continuous-time elliptic filter with its characteristic equiripple stopband attenuation and sharp transition from the 1 MHz passband to deep attenuation beyond the cutoff. Elliptic filters achieve the steepest transition band roll-off of any classical filter type for a given order, which is critical in ultrasound receivers where aliased high-frequency signals must be suppressed by more than 60 dB before entering the ADC while preserving the ultrasound signal components within the passband.
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Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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