ADC/DAC
Produkte (2518)
LTC2205CUK-14 - 14-bit 65MS/s ADC, 48-QFN | Analog Devices
The Analog Devices LTC2205CUK-14 is a 14-bit, 65 MS/s pipelined analog-to-digital converter designed for digitizing high-frequency, wide-dynamic-range signals up to 700 MHz input frequency, housed in a 48-pin QFN (7x7 mm) package with exposed pad. It accepts a differential analog input and integrates a PGA front end so the input range can be optimized for either best noise or best distortion performance. The C-grade part is specified over the commercial 0C to 70C temperature range. According to the LTC2205 family datasheet, this ADC combines wideband analog front end, low-jitter clocking, and CMOS-compatible parallel digital outputs in a single monolithic IC. An ADC (analog-to-digital converter) is a semiconductor device that converts real-world analog signals into discrete digital codes for downstream processing by microcontrollers, FPGAs, or DSPs. Within the data-converter hierarchy, the LTC2205CUK-14 is a high-speed pipelined ADC, a category that prioritizes sample rate and dynamic range over the absolute precision of successive-approximation (SAR) or delta-sigma architectures. Pipelined ADCs dominate communications, test-and-measurement, and radar/signal-intelligence front ends because they scale linearly with CMOS process nodes while maintaining SFDR (spurious-free dynamic range) above 80 dBFS at IF frequencies. Key features of the LTC2205CUK-14 include 14-bit resolution, 65 MS/s maximum sampling rate, a programmable differential PGA, an internal bandgap reference, optional external reference input, and CMOS-compatible parallel output bus. The digital outputs are organized in pairs to allow configurable output formats (offset binary or two's complement). An internal duty-cycle stabilizer preserves SFDR even when the incoming clock has non-50% duty cycle, simplifying clock-tree design in FPGA-driven systems. Architecturally, the device uses nine pipelined 1.5-bit stages followed by a final 4-bit flash to achieve 14-bit linearity, with digital error correction across all stages. The input sample-and-hold uses a fully differential switched-capacitor topology that delivers 78 dBFS SNR and 90 dBc SFDR at 30 MHz input, which is the figure engineers compare when selecting a 14-bit, 65 MS/s front end for IF sampling. Typical applications include cellular base-station IF sampling, cable-headend downstream receivers, wideband test instrumentation (spectrum analyzers, digitizing oscilloscope front ends), and software-defined radio (SDR) receiver chains. The 700 MHz input bandwidth makes it equally suitable for undersampling IF architectures in low-IF and direct-conversion radios. When designing with this device, place the analog input traces as short, matched-length differential pairs on a continuous ground plane, and decouple the analog and digital supply pins with separate 0.1 uF ceramic capacitors placed within 5 mm of each pin. The exposed pad on the QFN must be soldered to a ground-filled thermal land for stable operation, since the reference and clock circuitry are noise-sensitive. This page synthesizes distributor pricing from DigiKey and Mouser, pin-compatible drop-in alternatives from the LTC2205 family and competitor ADCs, and practical PCB layout guidance drawn from the LTC2205 datasheet - information not collected in any single manufacturer document.
LTC2205IUK - 16-Bit 65Msps ADC, 48-QFN | Analog Devices
The Analog Devices LTC2205IUK is a 16-bit, 65Msps pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package, designed for digitizing high-frequency, wide dynamic range signals up to 700 MHz input frequency. It integrates a programmable gain amplifier (PGA) front end that lets the user optimize the input range to match the source, and it offers 79 dB SNR with 100 dB spurious-free dynamic range (SFDR) for demanding communications and instrumentation applications. The 1ku list price starts from $70.56 per the ADI product page (as of 2026-10-13). An ADC (analog-to-digital converter) is a data-acquisition IC that samples a continuous analog waveform and produces a discrete digital code. Within the converter hierarchy it is a pipelined successive-approximation hybrid, which sits between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, slower). Pipelined ADCs like the LTC2205 strike a balance of 12-16 bit resolution at tens to hundreds of megasamples per second, making them standard for IF sampling, radar, test equipment, and software-defined radio. Key features of the LTC2205IUK include 90 fsRMS ultralow aperture jitter for accurate undersampling of high-IF signals, ±4 LSB INL and ±1 LSB DNL (no missing codes) for excellent DC linearity, and a single 3.3V supply operation. Differential PECL/LVDS-compatible clock inputs and CMOS-compatible outputs simplify interface to FPGAs and DSPs. The -IUK industrial temperature grade is rated from -40C to +85C. Architecturally, the device uses a multi-stage pipelined core with a proprietary front-end PGA and on-chip reference. Digital error correction across pipeline stages guarantees no missing codes at the full 65Msps rate, while internal calibration trims INL and DNL at production test. A separate analog and digital supply pin pair (AVDD/DVDD) is provided to allow clean power-rail isolation. Typical applications include cellular base-station IF sampling, cable-headend QAM/QPSK demodulators, medical ultrasound beamformers, radar and electronic-warfare receivers, and high-end test and measurement digitizers. The wide 700 MHz input bandwidth also makes it well-suited for direct-IF software-defined radio designs. When designing with the LTC2205IUK, place the analog input network (transformer or driver amp plus anti-alias filter) as close to the AIN pins as possible and keep AVDD/DVDD supplies well decoupled. The 48-QFN exposed pad must be soldered to a continuous ground plane to meet the 79 dB SNR spec, and a balanced differential clock source is essential to realize the 90 fs jitter figure. This page synthesizes the 1ku list price, drop-in LTC2205/LTC2204/LTC2206 family alternatives, and practical PCB layout guidance that go beyond what is in the ADI datasheet alone.
LTC2205IUK-14 - 14-Bit 65Msps ADC | Analog Devices
The Analog Devices LTC2205IUK-14 is a 14-bit, 65 Msps pipelined analog-to-digital converter designed for digitizing high-frequency, wide-dynamic-range signals with input bandwidths up to 700 MHz. Housed in a 48-pin QFN (7 mm x 7 mm) package with an exposed pad, this industrial-temperature-grade (-40C to +85C) ADC features a programmable-gain front end that optimizes input range and an internal reference. According to the LTC2205 family datasheet, the part accepts differential analog inputs and outputs CMOS-compatible parallel data. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog voltages and converts them into discrete digital codes at a defined sample rate. Within the broader taxonomy, the LTC2205IUK-14 belongs to the pipelined ADC class - a high-speed subcategory of Nyquist-rate data converters - which itself falls under data converters, mixed-signal ICs, and finally semiconductors. Pipelined ADCs trade latency (typically 5-7 clock cycles) for high sampling speed, making them the dominant architecture for communications, instrumentation, and radar IF sampling above 10 Msps. Key features include 14-bit resolution, 65 Msps sampling rate, 700 MHz analog input bandwidth, internal 1.25V reference, and an optional PGA front end with 0 dB / 2.5 dB / 5 dB / 7.5 dB gain settings. Differential PECL-/CMOS-compatible clock inputs support both single-ended and differential clocking schemes, and the part draws approximately 2.4 W from a single 3.3 V analog supply plus a 3.3 V or optional 1.8 V digital supply. Typical applications include cellular basestation IF digitization, cable-headend downstream tuners, medical imaging front-ends, and broadband wireless receivers. The industrial temperature grade (-40C to +85C) extends usability to outdoor telecom and factory-floor equipment. According to the manufacturer datasheet, the exposed pad must be soldered to a ground plane for thermal dissipation, since the part dissipates up to 2.4 W at full-speed 65 Msps operation. When designing with this device, route analog and digital grounds as separate islands joined only at the exposed pad to prevent digital switching noise from coupling back into the analog input. Use a 0.1 uF ceramic bypass capacitor within 5 mm of each supply pin and a 10 uF bulk tantalum or ceramic at the AVdd plane. According to the datasheet, the analog input is sampled on the rising edge of the clock, so maintain clock symmetry within 1 ns to preserve spurious performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
LTC2206CUK - 16-Bit 80Msps ADC, 48-QFN | Analog Devices
The Analog Devices LTC2206CUK is a 16-bit, 80 Msps pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package with an exposed thermal pad. The device accepts differential or single-ended inputs, delivers up to 80 million samples per second, and is designed for digitizing high-frequency, wide dynamic range signals up to 700 MHz input frequency. The integrated PGA front end allows the input range to be optimized for best SNR, while internal references eliminate external reference components. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time continuous-amplitude analog signals into discrete-time discrete-amplitude digital codes. The LTC2206 sits within the high-speed pipelined ADC category, a sub-class of data converters that trade latency for very high sample rates using multi-stage switched-capacitor architectures. In the system hierarchy it belongs to data acquisition ICs -> converters -> ADC/DAC -> signal chain -> mixed-signal semiconductors. The LTC2206CUK achieves 77 dB SNR and 100 dB SFDR at 70 MHz input, with internal dither for low-distortion performance. The 48-QFN package with EP enables a low thermal resistance path to PCB ground. The device offers CMOS, LVDS, or DDR LVDS output modes for flexible interface with FPGAs and ASICs. The pipelined architecture provides 1.5-cycle latency, suitable for many communications and instrumentation tasks where latency is not the primary constraint. Typical applications include cellular base-station receiver IF digitizers, radar signal processing chains, broadband communications test equipment, spectral analysis and imaging systems, and software-defined radio front-ends. The wide 700 MHz input bandwidth allows direct IF sampling without preceding mixers or band-pass filters in many architectures. When designing with the LTC2206CUK, the engineer must treat the analog input as a differential 100-ohm interface, place 0.1 uF and 10 uF decoupling capacitors close to each supply pin, and provide a clean low-noise clock source. The exposed pad must be soldered to a low-impedance ground plane. Output data rates above 80 Msps require careful length-matched PCB traces if LVDS is used. This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance, and design notes that complement the manufacturer datasheet for engineers selecting a 16-bit 80 Msps ADC for the 48-QFN (7x7) footprint.
LTC2206IUK - 16-Bit 80Msps ADC, PGA, 48-QFN | Analog Devices
The Analog Devices LTC2206IUK is a 16-bit, 80 Msps pipelined analog-to-digital converter (ADC) housed in a 48-pin QFN (7x7 mm) package. It accepts single-ended or differential analog inputs up to 700 MHz input frequency and delivers 16-bit resolution at 80 million samples per second, making it suitable for digitizing high-frequency, wide dynamic-range signals in communications, instrumentation, and defense systems. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time, continuous-amplitude analog signals into discrete-time digital codes. Pipelined ADCs use multiple stages of low-resolution flash sub-converters with inter-stage sample-and-hold and digital error correction to achieve high sampling rates while maintaining resolution - a hierarchy of: ADC -> data converter -> mixed-signal IC -> semiconductor. The LTC2206 family sits within this lineage as a wideband, high-linearity member. Key features include an integrated PGA (programmable gain amplifier) front end with adjustable input range (1 Vpp to 2.25 Vpp, typical), 77.5 dB SNR at 30 MHz input, 90 dB SFDR, internal bypassable reference, and CMOS-compatible outputs. The datasheet specifies a 0.5 ps RMS typical aperture jitter for accurate undersampling of IF signals. Single 3.3 V supply operation and LVCMOS/CMOS-compatible digital outputs simplify interface design. The pipelined architecture provides excellent spurious-free dynamic range (SFDR) over a wide input bandwidth, supporting multi-carrier communications and radar IF digitisation. A built-in dither generator improves low-level linearity. Optional LVDS output and an internal data randomizer (on related LTC2207) further reduce idle tones for sensitive spectral measurements. Typical applications include cellular base-station receiver IF digitisation, software-defined radio (SDR), test and measurement equipment, cable head-end equipment, and broadband communications links. Two recommended evaluation companion parts are the LT6202 low-noise op amp (ADC driver) and the LTC2207IUK for higher 105 Msps throughput in adjacent frequency plans. When designing with this ADC, pay close attention to input common-mode biasing and use a differential transformer driver or matched op-amps to preserve SFDR at high IF. Encode clock jitter must remain under the part's 0.5 ps RMS aperture jitter budget, and the analog input band-pass filter affects overall system noise figure. This page synthesizes distributor pricing, drop-in same-family alternatives, and design guidance not aggregated on the manufacturer datasheet - enabling faster board bring-up and a clearer cross-reference view across the LTC2205/2206/2207 family.
LTC2207CUK-14 - 14-Bit, 105Msps ADC | Analog Devices
The Analog Devices LTC2207CUK-14 is a 14-bit, 105 Msps pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package with exposed pad. It supports a single differential input channel optimized for high-frequency, wide dynamic range signals up to 700 MHz input frequency, delivering 77.3 dB SNR and 98 dB spurious-free dynamic range (SFDR) for demanding communications applications. The commercial temperature grade spans 0C to 70C. According to the Analog Devices LTC2207/LTC2206 datasheet, this ADC combines a PGA front end with an internal reference, enabling flexible input range scaling without external buffer circuitry. A pipelined ADC is a high-speed converter architecture that uses multiple cascaded low-resolution stages to achieve both high sample rates and high resolution. The LTC2200 family occupies the converter IC node in the signal chain hierarchy: analog front-end -> variable gain amplifier -> ADC -> digital signal processor -> FPGA/ASIC. Compared to successive-approximation-register (SAR) ADCs, pipelined parts deliver sample rates above 50 Msps at the cost of a fixed conversion latency, making them standard for software-defined radio, cable infrastructure, and radar digitizers. Key features include a 105 Msps sample rate, 14-bit resolution, 77.3 dB SNR, 98 dB SFDR, and an internal bandgap reference. The PGA front end allows the input range to be optimized for either maximum dynamic range or maximum SNR, and the CMOS-compatible outputs can interface directly to FPGAs or ASICs without level translation. The exposed-pad QFN-48 package provides a low thermal resistance path to PCB copper, allowing continuous 105 Msps operation without additional heatsinking. Typical applications include cellular base-station receivers, software-defined radio, cable modem termination systems, test and measurement instrumentation, and radar/sonar signal processing. The wide input bandwidth supports direct IF sampling, eliminating the need for an analog downconversion stage in many communications receivers. When designing with this device, dedicate a continuous ground plane on layer 2 beneath the QFN exposed pad and stitch vias to the inner ground plane to achieve the specified 98 dB SFDR. Decouple AVDD33, DVDD, and OV_DD separately with 0.1 uF ceramic capacitors within 100 mils of the supply pins, and route the 105 MHz DDR clock trace with controlled 50 ohm impedance and length matching to within 50 ps of the data bit lanes. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the LTC2207/LTC2206 ADC family, and practical PCB layout notes that complement the manufacturer datasheet's numerical and engineering specifications.
LTC2207IUK - 16-Bit 105Msps ADC, 48-QFN | Analog Devices
The Analog Devices LTC2207IUK is a 16-bit, 105 Msps pipelined analog-to-digital converter (ADC) housed in a 48-lead QFN (7x7 mm) package, optimized for digitizing high-frequency, wide dynamic range signals up to 700 MHz. The device integrates a PGA front end, allowing the input range to be optimized between 1.5 Vp-p and 2.25 Vp-p. According to the LTC2207/LTC2206 datasheet (22076fc.pdf), the converter achieves 78.5 dB SNR and 92 dB SFDR at 30 MHz input, with an internal transparent dither circuit that improves SFDR for small input signals. An ADC (Analog-to-Digital Converter) is a mixed-signal integrated circuit that converts continuous analog voltage into discrete digital codes. The LTC2207 belongs to the pipeline ADC architecture class, which interleaves multiple lower-resolution stages to achieve high sampling rates with low latency. Pipelined ADCs occupy the middle ground between flash converters (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, lowest bandwidth), making them ideal for communications, instrumentation, and software-defined radio. The LTC2207 sits within the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. Key features of the LTC2207IUK include 105 Msps sampling rate, 78.5 dB SNR, 92 dB SFDR, an internal dither engine, optional internal termination, and an LVDS/CMOS selectable output interface. The 48-QFN (7x7) package provides a compact footprint and a thermal pad, simplifying multi-channel PCB layouts. The 'I' suffix denotes the industrial temperature grade of -40C to +85C. Typical applications include cellular basestation receivers, cable head-end equipment, spectrum analyzers, communications test equipment, and high-end medical imaging front-ends. The wide input bandwidth and programmable PGA also make the LTC2207 attractive for defense and radar IF sampling, where input frequencies can reach hundreds of MHz. The selectable LVDS outputs ease integration with modern FPGAs and ASICs. When designing with the LTC2207IUK, engineers should pay close attention to the analog input network - typically a 1:4 transmission-line balun driving a 25 ohm termination - and to the LVDS output trace length matching for stable timing at 105 Msps. The internal reference is adequate for most applications, but an external reference can be used for best gain stability across temperature. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, design notes, and a pinout cross-reference that XAIPART curates specifically to complement - not duplicate - the manufacturer datasheet.
LTC2209CUP - 16-Bit 160Msps ADC, 64-QFN | Analog Devices
The Analog Devices LTC2209CUP is a 16-bit, 160 Msps pipelined analog-to-digital converter (ADC) housed in a 64-lead 9x9 mm QFN (HVQCCN) package. It is engineered for digitizing high-frequency, wide-dynamic-range signals with input frequencies up to 700 MHz. The integrated programmable gain amplifier (PGA) front end allows the input range to be optimized between 1.5 Vpp and 2.25 Vpp, simplifying interface to a variety of IF/RF signal sources. An analog-to-digital converter is a mixed-signal integrated circuit that samples continuous analog waveforms and converts each sample into a discrete digital code. Pipeline ADCs such as the LTC2209 achieve high sample rates by cascading multiple low-resolution flash stages, with each stage resolving a portion of the bits and passing the residue to the next; this architecture trades small latency for excellent linearity at high input frequencies, making it the workhorse of communications, instrumentation, and defense signal chains. The device provides CMOS output drivers that can be configured as a single 160 MHz bus or two demultiplexed 80 MHz busses. A separate output power supply pin (OVDD) allows the CMOS output swing to range from 0.5 V to 3.6 V, simplifying level shifting to modern FPGAs and ASICs. Front-end features include a wideband PGA, internal reference, and optional dither for improved SFDR at small input signals. Typical applications include cellular base-station receiver IF sampling, radar and electronic-warfare digitizers, broadband test instrumentation, medical imaging receivers, and high-end oscilloscope front-ends. The wide input bandwidth also makes the LTC2209CUP a strong fit for software-defined radio and direct-IF sampling in software-defined radio (SDR) platforms. When designing with this ADC, pay close attention to the analog input network, which must present a low-jitter differential source to the sample-and-hold. Place bypass capacitors (typically 0.1 uF plus 10 uF) directly on each supply pin, and route the differential clock with controlled impedance. Properly terminated, the LTC2209CUP delivers >77 dBFS SNR and >85 dBc SFDR, making it an excellent choice when dynamic range matters more than raw pin count or power dissipation.
LTC2209IUP - 16-Bit 160Msps ADC | Analog Devices | Industrial
The Analog Devices LTC2209IUP is a 16-bit, 160Msps pipelined analog-to-digital converter housed in a 64-pin QFN (9x9 mm) package with exposed pad, designed for digitizing high-frequency, wide-dynamic-range signals. According to the manufacturer datasheet, this ADC accepts input frequencies up to 700 MHz and features a programmable gain amplifier (PGA) front end that allows the input range to be optimized for the application. The IUP suffix denotes the industrial temperature grade (-40C to +85C). An analog-to-digital converter (ADC) is a semiconductor device that converts continuous analog signals into discrete digital codes for processing by digital systems. The LTC2209IUP belongs to the pipelined ADC family, which sits within the broader data converter category, itself part of the signal chain / mixed-signal IC hierarchy used in modern electronic systems. Pipelined ADCs are favored for high-speed, high-resolution applications such as communications infrastructure, radar, medical imaging, and test instrumentation. Key features of the LTC2209IUP include 16-bit resolution, 160Msps sample rate, a PGA front end with adjustable input range, LVDS/CMOS-compatible digital outputs, low jitter, and high spurious-free dynamic range (SFDR). The integrated PGA allows the user to trade off input range against SNR, providing flexibility for both small-signal and large-signal acquisition. The 64-lead QFN (9x9) package provides excellent thermal performance and a small PCB footprint suitable for space-constrained designs. The architecture uses a multi-stage pipelined topology with internal reference and a proprietary calibration scheme that maintains linearity over temperature. The 700 MHz input bandwidth makes the part suitable for undersampling IF signals in communications and radar systems. The industrial temperature grade supports operation in harsh environments without additional thermal management. Typical applications include cellular basestation receivers, cable modem head-ends, radar and lidar signal processing, medical imaging front-ends, spectroscopy, and high-speed data acquisition systems. The combination of high sample rate, wide input bandwidth, and flexible input range makes the LTC2209IUP a strong fit for communications and defense applications. When designing with this ADC, ensure the analog input is driven by a low-jitter, low-distortion amplifier such as the AD8352 or ADL5562, and that the clock source meets the jitter requirement specified in the datasheet. Bypass the supply pins with a combination of bulk and high-frequency ceramic capacitors placed as close as possible to the package to achieve rated performance. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design guidance not always covered by the manufacturer datasheet alone.
LTC2216CUP - 16-Bit 80Msps Low Noise ADC | Analog Devices
The Analog Devices LTC2216CUP is a 16-bit, 80 Msps pipelined low-noise analog-to-digital converter (ADC) housed in a 64-lead QFN (9x9 mm) package. It is designed for digitizing high-frequency, wide dynamic-range signals up to 400 MHz input frequency with a fixed 2.75 Vp-p input range, and operates from a single 3.3 V analog supply. According to the LTC2216 datasheet, the device delivers 78.5 dBFS SNR and 90 dB SFDR at the Nyquist frequency, making it well suited for demanding communications and instrumentation front-ends. What is an ADC? An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time analog voltages into discrete digital codes. Within the converter taxonomy, the LTC2216CUP belongs to the SAR/pipelined converter family (pipelined here) -> data converters -> mixed-signal ICs -> signal chain semiconductors. High-speed 16-bit converters sit at the boundary between precision measurement and communications infrastructure, where both dynamic range and sample rate determine system viability. Key specifications include 80 Msps guaranteed sampling rate, 76 dBFS signal-to-noise ratio and 90 dB spurious-free dynamic range. The input stage accepts differential signals with 2.75 Vp-p full-scale, and the digital outputs are CMOS/LVDS compatible, providing flexible interfacing with FPGAs and DSPs. Internal references and a duty-cycle stabilizer reduce external component count and ease PCB layout. The pipelined architecture distributes conversion across multiple low-resolution stages, combining high throughput with low power consumption (approximately 425 mW). The device integrates a high-bandwidth track-and-hold, internal reference, and programmable digital output timing, which minimizes downstream complexity while supporting demanding multi-carrier and broadband systems. Typical applications include cellular base-station receivers, cable infrastructure head-ends, medical imaging front-ends, spectrum and signal analyzers, defense radar signal chains, and high-end test-and-measurement instrumentation. The combination of 16-bit resolution and 80 Msps throughput enables the digitization of intermediate-frequency (IF) signals in software-defined radio systems. For design success, place the device on a multi-layer PCB with a solid ground plane and keep analog/digital sections physically separated. Use an ultra-low-jitter clock source at the encode input; encode jitter of even a few picoseconds directly degrades SNR. Properly terminate the differential analog inputs with a transformer or driver for best harmonic performance. This page synthesizes distributor pricing, drop-in alternatives from the same ADC family, and practical design considerations not found in the manufacturer datasheet alone.
LTC2216IUP - 16-Bit 80Msps Low-Noise ADC | Analog Devices
The Analog Devices LTC2216IUP is a 16-bit, 80 Msps pipelined analog-to-digital converter (ADC) designed for digitizing high-frequency, wide-dynamic-range signals up to 400 MHz input frequency, housed in a 64-pin QFN (UP, 9x9 mm) package with exposed pad. This industrial-temperature-grade ADC integrates a fixed 2.75 Vp-p differential input range, a high-bandwidth track-and-hold front end, and an ultra-low-jitter clock interface. According to the LTC2216 datasheet (22165f), the converter delivers 81 dB SNR and 96 dB SFDR at 30 MHz input, making it well suited to demanding IF-sampling architectures. An ADC (analog-to-digital converter) is a mixed-signal data-acquisition component that converts a continuous-time analog waveform into a discrete binary code at a fixed sampling rate. Pipelined ADCs are the dominant architecture for sample rates from about 10 Msps to several hundred Msps because they combine high throughput, low latency, and small die area; they sit hierarchically between successive-approximation (SAR) and flash converters on the speed-resolution curve. The LTC2216 family specifically targets communications and instrumentation markets where wide input bandwidth and excellent noise performance must coexist. Key features include 85 fsRMS aperture jitter, ±1 LSB DNL (no missing codes), ±3.5 LSB INL maximum, optional internal dither for improved low-amplitude linearity, and CMOS or LVDS-compatible DDR digital outputs. The fixed 2.75 Vp-p input is well matched to most differential-driver outputs, eliminating the need for an external input range scaling network. Power consumption is approximately 760 mW at 80 Msps from a single 3.3 V analog supply and a 1.8 V digital supply, with sleep and nap modes for power-sensitive applications. Architecturally, the LTC2216 uses an 18-stage switched-capacitor pipeline with digital error correction, followed by an output formatter. The optional internal dither engine adds pseudo-random noise at the first stage to randomize residue errors and decorrelate spurs from coherent input frequencies, improving SFDR in narrow-band undersampling applications. The 85 fsRMS jitter enables the converter's excellent noise floor to remain usable up to 400 MHz input, supporting IF sampling in radar and wireless-infrastructure receivers. Typical applications include cellular base-station receivers, radar and EW digitizer front ends, cable-infrastructure QAM demodulators, medical imaging, and high-end instrumentation such as digital oscilloscopes and spectrum analyzers. Designers also use the LTC2216 in low-latency communications links where its pipelined architecture provides only a few clock cycles of conversion delay. When designing with the LTC2216, engineers should follow the recommended differential input drive circuit shown in the datasheet and provide the lowest possible phase-noise sampling clock to fully exploit the 85 fsRMS jitter specification. Proper PCB layout with separate analog and digital grounds and a solid ground plane below the QFN exposed pad is essential to achieve the published AC performance, especially SFDR. This page combines verified distributor pricing with drop-in alternatives (LTC2215IUP, LTC2217IUP, LTC2271) and practical design guidance not synthesized in the datasheet alone.
LTC2217IUP - 16-Bit 105Msps Low Noise ADC | Analog Devices
The Analog Devices LTC2217IUP is a 105Msps, 16-bit pipelined analog-to-digital converter (ADC) with 81.3 dBFS noise floor and 100 dB spurious-free dynamic range (SFDR), housed in a 64-pin QFN (9x9 mm) exposed-pad package. It is designed for digitizing high-frequency, wide-dynamic-range signals with input frequencies up to 400 MHz, making it well suited for demanding communications applications including cellular base-station receivers, cable-headend digitizers, and IF sampling in software-defined radios. The differential input is fixed at 2.75 VP-P and accepts analog signals from DC to several hundred megahertz. An analog-to-digital converter (ADC) is a data-conversion integrated circuit that translates a continuous analog voltage or current into a discrete digital code, enabling digital signal processing (DSP), storage, and transmission of real-world waveforms. Pipeline ADCs like the LTC2217 use a multi-stage architecture with sample-and-hold, residue amplification, and digital error correction; they occupy the middle ground between flash converters (fastest, lowest resolution) and sigma-delta ADCs (slowest, highest resolution). The LTC2217 sits within the high-speed 16-bit converter category used for communications, instrumentation, and defense signal chains. Key specifications include 81.3 dBFS noise floor at 70 MHz input, 100 dB SFDR for clean spectral capture, and 85 fsRMS ultra-low aperture jitter that allows accurate undersampling of high-IF signals. Maximum DC linearity is specified at ±3.5 LSB INL and ±1 LSB DNL with no missing codes at the 16-bit level. The digital outputs are configurable as single-ended CMOS or LVDS, easing interface to FPGAs and ASICs. The exposed-pad QFN-64 package provides a low thermal-resistance path to the PCB, important for thermal management at full 105 Msps operation. Typical applications include cellular base-station receiver IF digitizers, cable-headend QAM/QPSK demodulators, test-and-measurement instrumentation such as digital oscilloscopes and spectrum analyzers, medical imaging receivers, and pulsed/RF radar digitizers. The wide input bandwidth and 85 fs jitter make it a strong choice for undersampling of high-IF frequencies while preserving dynamic range. Designers will appreciate the fast overrange recovery and internal dither that maintains linearity for small-input signals below the full-scale range. When designing in this part, allocate sufficient PCB area for the exposed thermal pad and stitch the ground plane beneath to keep junction temperature within the -40 °C to +85 °C industrial operating range. Provide a low-noise, low-ripple front-end driver capable of settling within the converter's acquisition window, and decouple the analog supply with 1 μF and 0.1 μF ceramic capacitors placed within 5 mm of AVDD pins. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes beyond what is published in the manufacturer datasheet.
LTC2220IUP-1 - 12-Bit 185Msps ADC, 64-QFN | Analog Devices
The Analog Devices LTC2220IUP-1 is a 12-bit, 185 Msps pipelined analog-to-digital converter housed in a 64-pin QFN (9x9 mm) package with exposed pad, designed for digitizing high-frequency, wide-dynamic-range signals. The device features 67.5 dB SNR to 140 MHz input, 80 dB spurious-free dynamic range (SFDR) to 170 MHz input, and a 775 MHz full-power bandwidth sample-and-hold, making it well suited for demanding communications and IF-sampling applications. The converter operates from a single 3.3 V supply with a typical power dissipation in the 660-890 mW range depending on sample rate. An ADC (analog-to-digital converter) is a semiconductor device that converts continuous-time analog signals into discrete digital codes, enabling downstream processing by DSPs, FPGAs, or microcontrollers. Within the broader signal chain hierarchy, the ADC sits between the analog front end (amplifiers, filters) and the digital processing block. Pipelined ADCs in particular use a multi-stage architecture that delivers high sample rates (tens to hundreds of Msps) with moderate resolution (10-14 bits), making them the workhorse for wireless baseband, radar, test instrumentation, and software-defined radio. Key features of the LTC2220IUP-1 include differential or single-ended input flexibility, parallel CMOS/CMOS-compatible output, integrated bandgap reference, and an optional output dither mode for improved SFDR at small input levels. The pipelined architecture provides inherent sample-and-hold operation, eliminating the need for an external SHA. The 64-QFN exposed-pad package provides a low thermal-resistance path, allowing the device to operate at the industrial -40C to +85C range without additional heatsinking at typical power levels. Typical applications include cellular base-station receiver IF digitization, cable-modem downstream capture, high-end medical imaging front ends, test and measurement digitizers, and radar/sonar signal processing. The 775 MHz analog input bandwidth also enables direct IF sampling of signals in the 70-200 MHz range, simplifying the receiver chain by eliminating a down-conversion stage. When designing with this part, allocate adequate PCB area for the exposed pad and stitch its thermal vias to an internal ground plane. The analog input pins should be DC-biased through a common-mode network; bypassing must use low-ESR ceramic capacitors placed within 5 mm of the supply pins. Output data timing is referenced to an external clock, and trace-length matching on the output bus is critical to maintain setup/hold margins above 100 Msps. This page synthesizes distributor pricing, pin-compatible drop-in alternatives from the LTC2220 family, and practical PCB layout notes not collected in the manufacturer datasheet alone. All specifications are extracted from the Linear Technology/Analog Devices LTC2220 datasheet and DigiKey listing as of 2026-10-13.
LTC2221CUP - 12-Bit 135Msps ADC, 64-QFN | Analog Devices
The Analog Devices LTC2221CUP is a 12-bit, 135Msps pipelined analog-to-digital converter (ADC) housed in a 64-lead QFN (9x9 mm) package. It combines 67.5 dB SNR and 80 dB SFDR with a 775 MHz full-power bandwidth sample-and-hold front end, all on a single 3.3 V supply while dissipating 660 mW. The C-suffix denotes the commercial 0 °C to +70 °C temperature grade, and the UP suffix designates the plastic 64-pin QFN-9x9 (MO-220-WNJR-5) exposed-pad package. An ADC (analog-to-digital converter) is a semiconductor device that transforms continuous analog signals into discrete digital codes at a defined sample rate. Pipelined ADCs such as the LTC2221CUP use a multi-stage switched-capacitor architecture to balance high sample rate, wide analog input bandwidth, and low power - positioning them between successive-approximation (SAR) ADCs and high-speed flash converters in the data-converter hierarchy. They are the standard building block for digitizing IF, baseband, and wideband intermediate-frequency signals in communications and instrumentation. Key performance features include 67.5 dB SNR up to 140 MHz input, 80 dB spurious-free dynamic range (SFDR) up to 170 MHz input, and 775 MHz full-power sample-and-hold bandwidth. The differential input architecture, internal bandgap reference, and optional external reference support simplify board design. LVDS/CMOS-compatible digital outputs and an integrated duty-cycle stabilizer further ease FPGA/ASIC interfacing. The pipelined architecture uses 6 to 8 cascaded 1.5-bit stages with digital error correction, latency is fixed at 5 clock cycles, and the internal reference is trimmed for low drift over temperature. The 775 MHz sample-and-hold amplifier comfortably digitizes signals beyond the second Nyquist zone, enabling undersampling for IF digitization. Typical applications include cellular base-station receivers, cable-headend downstreams, test and measurement digitizers, medical imaging, and radar/sonar intermediate-frequency capture. The wide input bandwidth makes the LTC2221CUP particularly attractive for undersampling architectures where the analog input is well above half the sample rate. When designing, decouple the AVDD, DVDD, and DRVDD rails with separate 0.1 µF + 10 µF ceramic networks placed within 5 mm of each pin, and tie the exposed pad (EP) to a clean analog ground plane for thermal dissipation (660 mW steady-state). This page combines distributor pricing, drop-in alternative cross-references, and engineering design notes not aggregated on a single manufacturer page.
LTC2221IUP - 12-Bit 135Msps ADC, 64-QFN | Analog Devices
The Analog Devices LTC2221IUP is a 12-bit, 135Msps pipelined analog-to-digital converter (ADC) in a 64-lead 9x9 mm QFN (UP) package. It features a single analog input channel, on-chip sample-and-hold, and an integrated high-bandwidth track-and-hold amplifier designed for IF undersampling applications up to 100MHz. The 1ku list price starts from $55.26 according to Analog Devices. A pipelined ADC is a high-speed analog-to-digital conversion architecture that uses multiple cascaded low-resolution stages to achieve high sampling rates while keeping die area and power manageable. Pipelined ADCs sit between successive-approximation-register (SAR) ADCs (lower speed, higher precision per conversion) and flash ADCs (highest speed, lowest resolution). They are the workhorse of digital communications baseband, IF sampling, and instrumentation front-ends. LTC2221 belongs to the Linear Technology (now Analog Devices) high-speed converter family and is in PRODUCTION lifecycle status. Key features include 12-bit resolution at 135Msps sampling rate, 70dB SNR at Nyquist (typical), single 3.3V supply operation, and LVDS or CMOS-compatible outputs. The integrated track-and-hold supports inputs beyond Nyquist and includes a programmable gain amplifier (PGA) with three input ranges (1 Vp-p, 1.5 Vp-p, 2 Vp-p). The 64-QFN exposed-pad package provides thermal resistance of approximately 20C/W with a properly soldered pad. Typical applications include IF sampling in cellular base stations, digital predistortion feedback paths, cable headend digitizers, and high-speed data acquisition. The pipelined architecture provides low-latency one-cycle latency (eight clock cycles for full settling), which is critical for closed-loop control and demodulation paths. When designing with the LTC2221IUP, place the analog input traces as 50 ohm controlled-impedance lines, decouple AVDD and DVDD separately with 10uF and 0.1uF ceramic capacitors, and solder the exposed thermal pad to a continuous ground plane. The encode clock must be a low-jitter source (<1 ps RMS) to preserve SNR.
LTC2222CUK-11 - 105Msps 11-Bit ADC, 48-QFN | Analog Devices
The Analog Devices LTC2222CUK-11 is an 11-bit, 105 Msps pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package. It samples at 105 Msps with 65.4 dB SNR (to 140 MHz input), 80 dB SFDR (to 150 MHz input), and a 775 MHz full-power bandwidth sample-and-hold. The device operates from a single 3.3 V supply and dissipates approximately 475 mW, with CMOS-compatible digital outputs. A pipelined ADC is a multi-stage converter that interleaves sample-and-hold and residue amplifier blocks to digitize analog signals at high speed while maintaining resolution. In the wider signal-chain hierarchy, the LTC2222CUK-11 sits between a front-end analog amplifier/buffer (typically an RF transformer or op-amp driver) and downstream digital processing - a DSP, FPGA, or custom ASIC - making it a critical high-speed bridge in communications, instrumentation, and imaging systems. The -11 derivative delivers 11-bit resolution (rather than the 12-bit native LTC2222) when cost or data-rate scaling is more important than absolute ENOB. Key differentiating features include 0.15 ps RMS ultra-low aperture jitter, which enables accurate undersampling of IF frequencies in communications receivers, single 3.3 V operation that simplifies board power design, and CMOS outputs that interface directly with ASICs and FPGAs without level shifters. The 7x7 mm 48-QFN exposed-pad package provides low thermal resistance for sustained full-rate operation. Applications for this part include cellular base-station IF sampling, cable-headend downstream QAM digitizers, test-and-measurement bench instruments, ultrasound beamforming front ends, and software-defined radio receivers. It is widely used wherever a moderately priced, low-jitter ADC serves as the analog-domain gateway into a digital signal-processing engine. When designing with this ADC, allocate a low-noise LDO for the analog AVDD rail because high-frequency sampling current transients couple directly into the reference ladder; a 1uF + 0.1uF ceramic bypass on the ADC reference pins must be placed within 2 mm of the package. This page synthesizes distributor pricing, drop-in alternatives, and practical decoupling guidance not assembled in the manufacturer datasheet alone.
LTC2222IUK-11 - 11-Bit 105Msps ADC | Analog Devices
The Analog Devices LTC2222IUK-11 is an 11-bit, 105 Msps pipelined analog-to-digital converter (ADC) housed in a 48-pin QFN (7x7 mm, UK package) with exposed pad, optimized for high-frequency, wide-dynamic-range signal acquisition. It samples at up to 105 Msps with a 775 MHz full-power input bandwidth and operates from a single 3.3 V rail while drawing only 475 mW of power. An ADC (analog-to-digital converter) is a semiconductor device that converts continuous analog signals into discrete digital codes at a specified sampling rate, serving as the bridge between the analog front-end (amplifiers, filters, transducers) and the digital signal processor, FPGA, or microcontroller. The pipelined ADC architecture used in the LTC2222IUK-11 enables high sampling rates with low power by processing each sample through a cascade of low-resolution stages, balancing speed, resolution, and die area efficiently. Within the signal-chain hierarchy, the ADC sits after the anti-alias filter and before the digital decimator or processor. Key features include 65.4 dB SNR and 80 dB SFDR for input frequencies up to 150 MHz, selectable ±0.5 V or ±1 V input ranges, no missing codes over temperature, optional clock duty-cycle stabilizer, and shutdown/nap modes for power management. The integrated sample-and-hold amplifier and CMOS-compatible outputs simplify interface to FPGAs and ASICs. The pipelined architecture of the LTC2222IUK-11 uses multi-bit per-stage conversion with digital error correction, achieving low spurious content and high linearity while operating at 105 Msps. The clock duty-cycle stabilizer relaxes the timing requirement on the external encode clock source, allowing use of lower-cost oscillators without degrading AC performance. Typical applications include wideband communications receivers, IF sampling in software-defined radio, cable head-end equipment, digital oscilloscopes, and medical imaging front-ends. The wide input bandwidth makes it suitable for undersampling IF architectures in cellular base-station designs. A key design consideration is providing a low-jitter encode clock and proper RF layout around the analog inputs to achieve the rated SNR; thermal management of the exposed pad is also important at full sampling rate.
LTC2226HLU#PBF - 12-bit 25Msps ADC, 32-TQFP | Analog Devices
The Analog Devices LTC2226HLU#PBF is a 12-bit, 25 Msps pipelined analog-to-digital converter (ADC) housed in a 32-pin TQFP (5 mm × 5 mm) surface-mount package. It delivers ±0.3 LSB INL (typical), ±0.15 LSB DNL (typical), 71.4 dB SNR, 90 dB SFDR, and operates from a single 3 V supply drawing only 75 mW. The 'LU' suffix denotes the TQFP-32 plastic package (MS-026), and '#PBF' designates lead-free / RoHS-compliant lead finish. An ADC (analog-to-digital converter) is a data converter IC that samples a continuous analog voltage and produces a discrete binary code proportional to the input. Pipelined ADCs like the LTC2226 are the dominant architecture for sample rates between 5 Msps and 250 Msps because they balance high throughput, low power, and small die area. Within the converter hierarchy, the LTC2226 sits under: ADC -> data converter -> signal-chain IC -> mixed-signal semiconductor. It is part of a pin-compatible family (LTC2246 at 14-bit, LTC2226 at 12-bit), enabling resolution swaps on the same PCB. Key features include a flexible 1 Vp-p to 2 Vp-p differential or single-ended analog input range, an integrated sample-and-hold amplifier with 575 MHz full-power bandwidth, a duty-cycle-stabilized clock input, shutdown and nap power-save modes, and no-missing-codes over temperature. The 0.25 LSB RMS transition noise sets a low noise floor relative to full scale. Architecturally, the LTC2226 uses a multi-stage switched-capacitor pipeline with digital error correction, fed by an internal or external reference. A separate output supply rail (OVdd, 0.5 V to 3.6 V) lets the CMOS outputs interface directly to 1.8 V, 2.5 V, or 3.3 V logic without level shifters. Typical applications include communications IF/baseband digitizers, portable instrumentation, CCD/camera imaging pipelines, ultrasound front-ends, and radar/digitizer cards. The wide input bandwidth and 75 mW dissipation suit battery-powered field equipment. A primary design consideration is the analog input network: a low-noise differential driver (such as the LT6600 or AD8138) feeding a properly terminated transformer preserves the SFDR rating. Decoupling requires 0.1 µF ceramics close to AVdd and OVdd with a 10 µF bulk cap at the board entry. This page consolidates distributor price, drop-in 32-TQFP alternatives, and design notes not found in the manufacturer datasheet alone.
LTC2227IUH - 12-Bit 40Msps Low Power 3V ADC | Analog Devices
The Analog Devices LTC2227IUH is a 12-bit, 40 Msps pipelined analog-to-digital converter (ADC) optimized for low-power 3V operation, housed in a 32-pin QFN (5x5 mm) package with an exposed thermal pad. It delivers 71.3 dB SNR and 90 dB SFDR at the Nyquist input frequency, consuming approximately 135 mW from a single 3V analog supply. An ADC (analog-to-digital converter) is a data converter integrated circuit that samples a continuous-time analog signal and outputs a discrete-time digital code proportional to the input amplitude. Pipelined ADCs like the LTC2227IUH use a multi-stage architecture with per-stage flash sub-ADCs and digital error correction, enabling high sampling rates (tens to hundreds of Msps) at moderate resolution (10-14 bits) while dissipating far less power than full-flash architectures. Within the converter taxonomy, the LTC2227IUH sits as: ADC -> data converter -> mixed-signal IC -> semiconductor. Key features include a pipelined architecture with digital error correction, fully differential input stage with adjustable common-mode voltage, selectable internal bandgap reference (2.5V or optional external reference), and CMOS-compatible parallel output bus. The differential input accepts both single-ended and fully differential drive, simplifying front-end design with op-amps or transformers for communication and imaging front-ends. The 32-lead QFN (5x5 mm) exposed-pad package provides a low thermal resistance path to the PCB ground plane, allowing sustained 40 Msps operation at 3V without additional cooling. The pin-compatible LTC2228 (65 Msps) and LTC2226 (25 Msps) variants in the same QFN-32 footprint let designers scale dynamic performance without re-laying out the PCB. Typical applications include cellular basestation receiver IF digitizers, handheld imaging systems, portable oscilloscopes and digital storage scopes, cable head-end equipment, and spectrum analyzers. The low 135 mW dissipation also suits battery-powered instrumentation such as ultrasound front-ends and portable radar digitizers. When designing with this converter, place the analog input coupling network and the internal reference bypass capacitor as close as possible to the AVDD and REFH/REFL pins. Treat the digital outputs as 40 Msps switching signals - route them over a continuous ground plane and keep them away from the analog input traces to avoid digital feedback into the sample-and-hold. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single canonical reference for the LTC2227IUH.
LTC2228IUH - 12-Bit 65Msps 3V ADC, 32-QFN | Analog Devices
The Analog Devices (formerly Linear Technology) LTC2228IUH is a 12-bit, 65 Msps pipelined analog-to-digital converter designed for digitizing high-frequency, wide dynamic range signals from a single 3 V supply. Packaged in a 32-lead QFN (5x5 mm) with exposed pad, the LTC2228IUH delivers ±0.3 LSB INL (typical), ±0.15 LSB DNL (typical), no missing codes over temperature, and 0.25 LSB RMS transition noise, making it well suited for demanding imaging and communications signal chains. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous-time analog input and produces a discrete-time digital code proportional to the input voltage. Pipelined ADCs like the LTC2228 split the conversion into cascaded low-resolution stages with digital error correction, enabling high sample rates (>10 MHz) at moderate resolution (10-14 bits). They sit within the broader taxonomy of data-converter IC -> mixed-signal IC -> semiconductor device, and they are the interface between analog front-ends and digital signal processors, FPGAs, or ASICs. Key features of the LTC2228IUH include 71.3 dB SNR and 90 dB SFDR at the Nyquist input frequency, guaranteeing spectral purity for cellular baseband, IF sampling, and portable instrumentation applications. The device accepts a single-ended CLK input that controls converter operation and conversion start, simplifying board layout by removing the need for a complementary clock. A separate output supply pin (OVDD) lets the outputs swing between 0.5 V and 3.6 V, allowing direct connection to 1.8 V, 2.5 V, or 3.3 V logic families without level shifters. Typical applications for the LTC2228IUH include cellular baseband transceiver IF sampling, ultrasound and medical imaging front-ends, portable and battery-powered test instrumentation, CCD imaging digitizers, and cable-head-end digital receivers. Its low 3 V power consumption makes it attractive for power-constrained designs, while the wide AC performance margin accommodates broadband signals up to the Nyquist band. When designing with the LTC2228IUH, place the input network as close as possible to the analog input pin and provide a low-jitter clock source - the SNR budget at 65 Msps degrades by approximately 1 dB for every 1 ps of clock jitter. Decouple OVDD and AVDD separately with 0.1 µF ceramic capacitors near the pins, and tie the exposed pad to a clean analog ground plane for thermal and electrical performance. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not collated in the manufacturer datasheet, providing information gain beyond what distributor or manufacturer product pages offer.
LTC2230CUP - 10-Bit 170Msps ADC | Analog Devices | QFN-64
The Analog Devices LTC2230CUP is a 10-bit, 170 Msps pipelined analog-to-digital converter (ADC) housed in a 64-pin QFN (9x9 mm, UP) package with exposed pad. It features a single differential input, an internal 2.5V reference (selectable from internal/external), and CMOS-compatible logic outputs. Per the Analog Devices product page, samples are rated at 1ku pricing starting from $39.66. What is a pipelined ADC? A pipelined analog-to-digital converter is a high-speed Nyquist ADC architecture that processes a continuous stream of samples through cascaded low-resolution stage flash converters, each stage resolving a portion of the bits before passing the residue to the next stage. Pipelined ADCs sit within the broader taxonomy of data converters (ADC -> Nyquist ADC -> pipelined ADC -> mixed-signal IC -> semiconductor) and are the dominant architecture for high-sample-rate applications in the 10 Msps to several hundred Msps range where successive-approximation (SAR) ADCs run out of speed. The LTC2230 family represents a mainstream 10-bit pipelined design optimized for IF undersampling, imaging, and instrumentation. Key features include 170 Msps sample rate, 10-bit resolution, ±1 LSB INL (typical), 60 dB SNR at Nyquist with 5MHz input, and a single 3V supply operation (2.7V to 3.4V). Power dissipation is approximately 380 mW at full sample rate. The differential input range supports a 1V P-P full-scale swing using the internal 2.5V reference, or can be driven with external reference for gain fine-tuning. The UP package has an exposed thermal pad that must be soldered to the PCB ground plane for thermal dissipation and electrical performance. Design-in considerations include the requirement for low-jitter clock input (less than 0.5 ps RMS for full ENOB), differential input drive via transformer or op-amp driver, and proper decoupling of the analog and digital supplies (they share the same 3V rail but require separate bypass networks). For comparison, the LTC2240 family extends the same architecture to 12-bit resolution, and the LTC2220 family drops to 105 Msps in the same QFN-64 (UP) footprint.
LTC2237IUH - 10-Bit 40Msps Low-Noise 3V ADC | Analog Devices
The Analog Devices LTC2237IUH is a 10-bit, 40 Msps low-noise 3V analog-to-digital converter designed for digitizing high-frequency, wide-dynamic-range signals. It comes in a 32-pin QFN (5mm x 5mm) plastic package with exposed pad, and operates from a single 3V analog supply plus a separate 0.5V to 3.6V digital output supply. According to the manufacturer datasheet, DC accuracy specifications include ±0.1 LSB INL (typical) and ±0.05 LSB DNL (typical), with ±0.5 LSB INL/DNL guaranteed over temperature, and a low 0.07 LSB RMS transition noise. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog voltages and converts them to discrete digital codes, enabling real-world analog signals to be processed by digital systems. The LTC2237 family belongs to the SAR/pipeline hybrid high-speed converter category, sitting within the broader hierarchy of data converter -> mixed-signal IC -> semiconductor. The 3V single-supply operation makes the family a power-efficient choice for portable and battery-driven imaging or communication platforms. Key features of the LTC2237IUH include 40 Msps sampling rate, 10-bit resolution, a separate output supply pin allowing direct interface to 0.5V-3.6V logic, integrated PGA/frontend input structure with internal reference, and shutdown/sleep modes for power-sensitive applications. The 78 dB SNR and 85 dB SFDR (typical) are well-matched to imaging pipelines and intermediate-frequency (IF) signal chains. The low 0.07 LSB RMS transition noise enables clean capture of small-swing analog inputs without code-edge flicker. Architecturally the device uses a pipelined multi-stage converter core with on-chip sample-and-hold and an internal bandgap reference. Internal register setting controls the input span (1Vpp or 2Vpp), giving designers flexibility to optimize SNR against full-scale headroom. The 3V analog supply combined with CMOS digital outputs keeps the typical power dissipation low, which is a major advantage over 5V-supply predecessors when designing thermally-constrained boards. Typical applications include medical imaging front-ends, digital oscilloscopes, IF/baseband signal processing in communications receivers, and CCD/CMOS image sensor digitizers. The wide input bandwidth and 78 dB SNR make it well suited for undersampling IF signals in software-defined radio receivers and for high-speed CCD line-scan capture in industrial inspection. The separate logic supply simplifies connection to modern FPGAs and DSPs without level translators. When designing with the LTC2237IUH, drive the analog input with a low-impedance differential amplifier (such as the AD8138) to preserve SFDR at high input frequencies, and place the input anti-alias filter as close to the analog input pins as possible. Decouple the exposed pad to a solid ground plane to keep junction temperature within the -40C to +85C industrial range. This page synthesizes verified distributor pricing, drop-in alternative MPNs, application guidance, and PCB/thermal design notes not found in the manufacturer datasheet alone.
LTC2240IUP-10 - 10-Bit 170Msps ADC, 64-QFN | Analog Devices
The Analog Devices LTC2240IUP-10 is a 10-bit, 170 Msps pipelined analog-to-digital converter housed in a 64-lead QFN (UP, 9x9 mm) package with exposed pad. It is designed for digitizing high-frequency, wide dynamic-range signals and features 60.6 dB SNR and 80 dB SFDR at the rated sample rate, making it well suited to demanding communications, IF-sampling, and instrumentation front-ends. What is a pipelined ADC? A pipelined analog-to-digital converter is a high-speed ADC architecture that processes the analog input through a cascade of low-resolution flash stages, each handling a subset of the bits and feeding a residue to the next stage. This parallelism allows sample rates from tens of MSPS to several hundred MSPS with low power consumption and high dynamic range, sitting at the top of the speed hierarchy below flash ADCs but above successive-approximation (SAR) and delta-sigma converters. Pipelined ADCs are the workhorse of communications infrastructure, radar, test equipment, and digital oscilloscopes. Key specifications of the LTC2240IUP-10 include a 170 Msps maximum sample rate, 10-bit resolution, 1.4 GHz analog input bandwidth, single 3V supply operation (2.85V to 3.4V), and LVDS or CMOS compatible digital outputs. The device integrates an internal sample-and-hold, programmable gain amplifier, and internal reference, simplifying board-level design and reducing external component count. The architecture uses a multi-stage pipelined core with digital error correction, achieving low latency and excellent spurious-free dynamic range (SFDR) for narrowband and wideband inputs alike. Differential clock inputs and flexible output clocking allow easy interface to FPGAs and dedicated clock-generation ICs. Typical applications include cellular basestation receivers, cable head-end equipment, medical imaging, radar IF digitizers, and high-speed data acquisition. The wide analog input bandwidth also makes the part suitable for direct-IF sampling in software-defined radio (SDR) designs. A key design consideration is the clock jitter budget. Because SNR degrades with aperture uncertainty at high input frequencies, pair the LTC2240IUP-10 with a low-jitter clock source (sub-200 fs rms) and follow standard high-speed ADC layout practices with a solid ground plane and properly bypassed analog/digital domains. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in LTC22xx family alternatives already on XAIPART, and practical design notes not consolidated in the manufacturer datasheet.
LTC2240IUP-12 - 12-Bit 170Msps ADC, 64-QFN | Analog Devices
The Analog Devices LTC2240IUP-12 is a 12-bit, 170 Msps pipelined analog-to-digital converter designed for digitizing high-frequency, wide-dynamic-range signals, housed in a 64-lead 9x9 mm QFN package with exposed pad (UP suffix). It features 65.6 dB SNR and 80 dB spurious-free dynamic range (SFDR) at the full 170 Msps sampling rate, with selectable parallel CMOS or LVDS output data interfaces for flexible downstream FPGA or ASIC connection. The differential analog input accepts up to 2 Vp-p full-scale signals, and the device operates from a single 3.3 V analog supply plus a separate 3.3 V or optional 1.8 V digital output supply for reduced digital noise coupling. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts real-world analog voltages into discrete digital codes at a sampling rate, serving as the interface between RF/analog front ends and digital signal processors. Within the broader signal-chain taxonomy, the LTC2240IUP-12 sits in the high-speed pipeline ADC category (12-bit resolution, 100+ Msps), which sits under successive-approximation and flash architectures for sampling rates up to several hundred Msps. In the system hierarchy, pipeline ADCs occupy the tier between general-purpose SAR ADCs (<=10 Msps) and ultra-high-speed interleaved or JESD204B-class ADCs (>500 Msps). Key features of the LTC2240IUP-12 include a 65.6 dB signal-to-noise ratio, 80 dB SFDR at 170 Msps with a 70 MHz input, and an aperture jitter of 0.15 ps RMS, making it suitable for undersampling IF signals in communications receivers. The device supports full-power analog input bandwidth above 500 MHz and offers programmable gain and offset adjustment via dedicated SPI pins, with an internal bandgap reference and integrated input common-mode bias. Power dissipation is 638 mW typical at 170 Msps with CMOS outputs and scales downward at lower clock rates. The LTC2240IUP-12 uses a multi-stage pipelined architecture with proprietary input sample-and-hold and digital error correction, allowing it to maintain 12-bit linearity and low spurious content across Nyquist input frequencies. The differential input structure provides common-mode rejection, and the LVDS output option enables high-data-rate transfer over long PCB traces without EMI issues. An internal duty-cycle stabilizer compensates for clock-source non-50 percent duty cycle, simplifying clock-tree design in FPGA-based systems. Typical applications include cellular base-station receiver IF digitizers, cable-headend downstream QAM demodulators, radar and phased-array signal acquisition, medical imaging front ends, and high-speed data-acquisition cards for test and measurement. It also fits spectrum analyzer and software-defined radio ADC positions where 12-bit dynamic range at 170 Msps is sufficient. When designing with this ADC, pay close attention to analog input network design: use a transformer-coupled or differential op-amp driver with appropriate input common-mode biasing, and provide a low-noise clock source with jitter below 0.5 ps RMS to preserve SNR. The exposed pad of the 64-QFN must be soldered to a continuous ground plane to achieve the rated thermal performance and to provide the necessary ground return for the input stage. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design guidance that complement the official Analog Devices datasheet for procurement and engineering decisions.