LTC2185CUP#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC2185CUP#PBF is a dual-channel 16-bit 125 Msps low-power ADC from Analog Devices operating at 1.8 V supply with parallel LVDS outputs and 0.0114% maximum linearity error. It offers exceptional dynamic range performance for wideband communication and high-speed data acquisition systems.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- LTC2185CUP#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $199.7400(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC2185CUP#PBF?
- Dual 16-bit ADC channels sampling simultaneously at 125 Msps for wideband I/Q signal acquisition in communications receivers
- 1.8 V supply operation with low-power architecture minimizing heat dissipation in dense multichannel ADC board designs
- Maximum linearity error of 0.0114% ensuring high-fidelity signal digitization for precision measurement instrumentation
- Parallel LVDS output interface enabling high-speed data transfer to FPGAs and ASICs with reduced output noise
- Compact 64-pin QFN package supporting high channel density in portable software-defined radio and radar receiver boards
What is LTC2185CUP#PBF used for?
The LTC2185CUP#PBF is engineered for high-speed data acquisition in software-defined radio (SDR) receivers, wireless infrastructure base stations, and spectrum analyzers requiring dual-channel 16-bit resolution at 125 Msps sample rates. Its simultaneous I and Q channel digitization at 1.8 V supply makes it ideal for direct-conversion and superheterodyne receiver architectures in cellular infrastructure, satellite payload processors, and electronic warfare signal intelligence systems. The device also serves radar signal processors and medical ultrasound imaging systems where low-power, high-linearity ADC channels must sample wideband signals with minimal degradation to dynamic range.
What are the specifications of LTC2185CUP#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1705 |
| YTEOL | 10 |
| Analog Input Voltage-Max | 1.25V |
| Analog Input Voltage-Min | 0.7V |
| Converter Type | ADC, PROPRIETARY METHOD |
| JESD-30 Code | S-PQCC-N64 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.0114% |
| Number of Analog In Channels | 2 |
| Number of Bits | 16 |
| Number of Functions | 1 |
| Output Bit Code | OFFSET BINARY, 2S COMPLEMENT BINARY |
| Output Format | PARALLEL, WORD |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC64,.35SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Sample Rate | 125MHz |
| Sample and Hold / Track and Hold | SAMPLE |
| Supply Current-Max | 228mA |
| Supply Voltage-Nom | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## LTC2185CUP#PBF Alternates Showing results | Image |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 3A001.A.5.A.5 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the LTC2185CUP#PBF datasheet?
LTC2185CUP#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC2185CUP#PBF?
Compatible alternatives and drop-in replacements for LTC2185CUP#PBF:
suggested
suggested
suggested
Frequently Asked Questions
What sample rate and resolution does the LTC2185CUP#PBF provide and how does that determine the Nyquist bandwidth for IF sampling?
The LTC2185CUP#PBF samples at 125 Msps with 16-bit resolution on each of its 2 channels. By the Nyquist theorem, it can digitize analog signals with bandwidths up to 62.5 MHz per channel without aliasing. This enables direct IF sampling of signals centered from DC to 62.5 MHz, eliminating a mixer stage in superheterodyne receivers for wideband communication and radar front-end designs.
What supply voltage does the LTC2185CUP#PBF require and how does low-power operation benefit multi-channel receiver boards?
The LTC2185CUP#PBF operates from a 1.8 V analog supply, significantly reducing power consumption compared to 3.3 V ADCs at the same sample rate. In a 4-channel receiver board using two LTC2185 devices, the 1.8 V supply reduces total ADC power dissipation by approximately 45%, lowering thermal management requirements and enabling smaller heat sinks or passive cooling in enclosed receiver chassis designs.
How does the 0.0114% linearity error of the LTC2185CUP#PBF affect spurious-free dynamic range in a wideband receiver?
The LTC2185CUP#PBF achieves a maximum integral nonlinearity (INL) error of 0.0114% of full-scale, corresponding to approximately 0.75 LSB at 16-bit resolution. This low INL contributes to a spurious-free dynamic range (SFDR) exceeding 90 dBFS at 100 MHz input frequency, ensuring that digitized signals in a wideband SDR receiver are not masked by harmonic distortion products from ADC nonlinearity.
Why would a radar designer choose the LTC2185CUP#PBF over a single-channel 16-bit ADC at the same sample rate?
A radar receiver requires simultaneous I and Q channel digitization for complex baseband demodulation and digital beamforming. The LTC2185CUP#PBF provides 2 matched 16-bit ADC channels with less than 0.5 dB channel-to-channel gain mismatch and sub-picosecond aperture delay skew, ensuring phase coherence between I and Q samples at 125 Msps. Using 2 separate single-channel ADCs would require careful board-level matching of 2 independent clock paths and supply domains to achieve equivalent I/Q phase alignment.
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Why Buy from FindMyChip
About Analog Devices
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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| 1+ | $268.6100 | $268.61 |
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