ADC/DAC
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LTC2192IUKG - 16-bit 65Msps Dual ADC | Analog Devices
The Analog Devices (formerly Linear Technology) LTC2192IUKG is a 16-bit, 65 Msps, dual-channel, simultaneous-sampling pipelined analog-to-digital converter (ADC) housed in a 52-pin QFN (7x8 mm) package with an exposed pad. The two on-chip ADCs are clocked from a single clock input and share a common reference, providing matched-channel dynamic performance for I/Q demodulation and diversity receivers. An ADC (analog-to-digital converter) is a semiconductor device that converts continuous-time continuous-amplitude analog signals into discrete digital codes. Pipeline ADCs use a multi-stage architecture with per-stage flash converters and residue amplifiers to achieve high sample rates while keeping per-stage complexity low. Dual simultaneous-sampling ADCs digitize two analog inputs at exactly the same instant, preserving channel-to-channel phase coherence that is essential in communications and beamforming signal chains. The LTC2192 family sits within the broader ADC hierarchy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Key features include 77 dB SNR and 90 dB spurious-free dynamic range (SFDR) at the Nyquist input frequency, ultra-low 0.07 ps RMS aperture jitter for accurate undersampling of IF signals, and CMOS or LVDS output options selectable per board. The 52-QFN (7x8) package has an exposed thermal pad that must be soldered to the PCB ground plane for rated thermal and electrical performance. The architecture is a true dual-channel pipeline with shared input clock and shared internal reference buffer; each channel has its own track-and-hold and digital error-correction logic. The 0.07 ps RMS jitter figure allows the converter to maintain 77 dB SNR with input signals reaching beyond 250 MHz, exceeding the Nyquist bandwidth and so enabling direct IF-sampling receivers without a separate mixer stage. Typical applications include communications receivers with diversity or I/Q channels, cellular base-station digitizer cards, test and measurement instrumentation, medical imaging front-ends, and any multi-channel system that requires matched-channel sampling. Designers also pair the LTC2192 with the related 40 Msps LTC2191 and 25 Msps LTC2190 to support platforms with adjustable sample rates. When laying out the PCB, keep the analog inputs short and symmetric on each channel, route the clock with controlled impedance, and stitch the exposed pad with multiple thermal vias to the internal ground plane for low-jitter operation. Provide a clean low-noise analog supply because the integrated reference scales directly with AVDD and degrades with supply ripple. Decouple AVDD and DVDD with 1 µF and 0.1 µF ceramic capacitors placed within 5 mm of each supply pin. This page synthesizes distributor pricing, the LTC2192's key AC and DC parameters, and same-family alternatives not presented together in any single datasheet source.
LTC2193IUKG - 16-Bit 80Msps Dual ADC, 76.8dB SNR | ADI
The Analog Devices LTC2193IUKG is a 16-bit, 80Msps, dual-channel, simultaneously-sampling low-power analog-to-digital converter (ADC) in a 52-pin QFN (7x8 mm) package. It features 76.8 dB SNR and 90 dB SFDR, total power dissipation of 249 mW (125 mW per channel), 0.07 psRMS ultra-low jitter, and serial LVDS outputs (1, 2, or 4 bits per channel). What is a high-speed dual ADC? A dual ADC is a single integrated circuit that contains two independent, simultaneously-sampling analog-to-digital converters sharing a common clock and reference. The 'simultaneous sampling' property preserves the phase relationship between the two analog inputs, which is critical in diversity receivers, MIMO wireless links, and I/Q demodulation paths. The 16-bit resolution provides 96 dB of dynamic range, placing dual ADCs in the signal chain hierarchy between front-end amplifiers/anti-alias filters and the digital baseband FPGA or ASIC. Key features of the LTC2193IUKG include a single 1.8V analog supply, single 1.8V to 3.3V output supply, CMOS or DDR LVDS output modes, and pin-compatible scalability within the LTC2195/LTC2194/LTC2193 family (125/105/80 Msps). The pipelined architecture integrates a high-bandwidth differential sample-and-hold with on-chip voltage reference, while the data clock output simplifies FPGA capture. Its ultralow aperture jitter of 0.07 psRMS enables accurate undersampling of high-IF signals. The LTC2193IUKG utilizes a 16-stage pipelined architecture with digital error correction. The wide input bandwidth supports IF sampling well above 100 MHz, and the configurable LVDS lane count (1-, 2-, or 4-bit-per-channel) allows designers to trade pin count for board complexity. The 'I' suffix denotes the industrial temperature grade of -40C to +85C, suitable for non-automotive commercial and industrial environments. Typical applications include communications receivers, cellular base stations, smart antenna systems, handheld radio links, ultrasound and medical imaging, and portable instrumentation. In each of these, the simultaneous sampling and low power-to-performance ratio directly translate to reduced PCB area, longer battery life, or denser channel count. When designing with this device, pay close attention to PCB layout: the analog and digital grounds should be separated and joined only at the exposed pad, and the input traces must be length-matched differential pairs to preserve SNR. Use the LTC217x/LTC219x family evaluation kit as a reference for the analog input network, clock distribution, and LVDS routing. This page synthesizes distributor pricing, drop-in compatible alternatives from the same datasheet family, and practical PCB design notes not present on standard distributor listings, providing an engineer-focused decision brief for selecting the LTC2193IUKG.
LTC2194CUKG - 16-Bit 105Msps Dual ADC, 52-QFN | Analog Devices
The Analog Devices LTC2194CUKG is a 16-bit, 105 Msps, dual-channel simultaneous-sampling pipelined analog-to-digital converter (ADC) housed in a 52-pin QFN (7x8 mm) package. It is part of the LTC2195/LTC2194/LTC2193 family, delivering 76.8 dB SNR and 90 dB spurious-free dynamic range (SFDR) at full Nyquist input, with ultralow 0.07 psRMS aperture jitter that enables undersampling of IF frequencies in communications systems. Two fully differential analog inputs support per-channel conversion at up to 105 Msps with independent CMOS output ports, making the part well-suited for diversity receivers, MIMO front-ends, and multi-antenna baseband digitizers. A pipelined ADC is a high-speed data converter architecture that uses multiple low-resolution flash stages interleaved with sample-and-hold and DAC residue amplifiers to achieve conversion rates from tens to hundreds of megasamples per second, while preserving 12-16 bit resolution. Pipelined ADCs occupy the middle ground between successive-approximation (SAR) converters (low power, single-shot) and flash ADCs (very high speed, low resolution). Within a signal chain they sit between the analog front end (LNA, mixer, anti-alias filter) and the digital back end (FPGA, ASIC, DSP), translating conditioned IF or baseband signals into parallel LVDS/LVCMOS words for downstream demodulation or beamforming. The dual-channel, simultaneous-sampling variant, which the LTC2194CUKG represents, is a key building block in modern multi-channel radio designs. Key features of the LTC2194CUKG include a 1.8 V analog and digital supply rail, an optional low-power mode that reduces consumption at lower sample rates, programmable full-scale input range, and per-channel LVCMOS outputs that interface directly with FPGAs. The 52-QFN exposed-pad package provides a low thermal-resistance path and a compact 7x8 mm PCB footprint, enabling dense multi-channel layouts. Typical applications include LTE and W-CDMA diversity receivers, multi-carrier base-station digitizers, cable-headend downstream capture, medical imaging receivers, and radar/EW intermediate-frequency sampling. The ultralow jitter also makes it suitable for direct IF sampling in software-defined radio and instrumentation front ends. When designing with the LTC2194CUKG, use a low-jitter clock source (such as a clean crystal oscillator or clock distribution IC) and tightly bypass each supply pin with a 0.1 microfarad ceramic capacitor plus a bulk tantalum or polymer cap. The exposed thermal pad must be soldered to a continuous ground plane for thermal and electrical performance, and the analog and digital ground planes should be joined only at the IC's exposed pad to prevent digital switching noise coupling into the analog inputs. This page synthesizes the official datasheet, current distributor pricing, drop-in same-family and cross-brand alternatives, and practical design notes not found on standard distributor product pages.
LTC2194IUKG - 16-Bit 105Msps Dual ADC | Analog Devices
The Analog Devices LTC2194IUKG is a 2-channel, simultaneous-sampling 16-bit analog-to-digital converter (ADC) operating at 105 Msps, designed for digitizing high-frequency, wide-dynamic-range signals. It is housed in a 52-pin QFN (7x8 mm) package and supports a 1.7 V to 1.9 V analog supply with LVDS digital outputs, delivering 76.8 dB SNR and 90 dB spurious-free dynamic range (SFDR) at the rated sample rate. An ADC (analog-to-digital converter) is a semiconductor device that converts continuous analog voltage signals into discrete digital codes. The category hierarchy is: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Simultaneous-sampling dual ADCs like the LTC2194IUKG capture two input channels on the same internal clock edge, which is essential for phase-coherent systems such as diversity receivers, I/Q demodulators, and multi-antenna beamforming where channel-to-channel timing skew would corrupt the signal. Key performance features include 0.07 ps RMS ultralow aperture jitter that enables excellent undersampling of IF frequencies, an internal transparent dither circuit that improves small-signal linearity, and a programmable LVDS output bus that simplifies board-level routing. The pipelined architecture with digital error correction provides consistent 16-bit linearity across the operating temperature range of -40C to +85C. The LTC2194IUKG uses a fully differential input sample-and-hold stage driven by an internal bandgap reference. The combination of high SNR, high SFDR, and low jitter makes it well-suited for communications infrastructure, medical imaging front-ends, and defense signal-intelligence receivers. The 52-lead QFN package provides a low thermal resistance path, supporting reliable operation in space-constrained designs without external heatsinking. Typical applications include cellular base-station receive paths, software-defined radio (SDR) platforms, radar and sonar pre-processors, portable and bench-top test instrumentation, and multi-channel data acquisition modules for industrial and medical imaging. When designing with this part, route the LVDS output pairs as length-matched 100-ohm differential traces and keep analog and digital ground planes separated by a single stitching capacitor bridge at the ADC body. Use a dedicated low-noise LDO such as the LT3042 or LT3021 for AVDD to preserve the 76.8 dB SNR. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical layout notes drawn from the Analog Devices 219543f datasheet that are not collated on a single OEM page.
LTC2195CUKG - 16-Bit 125Msps Dual ADC | Analog Devices
The Analog Devices LTC2195CUKG is a 2-channel, simultaneous-sampling 16-bit pipelined analog-to-digital converter (ADC) capable of 125 Msps per channel, housed in a 52-pin QFN (7x8 mm) package. It delivers 76.8 dB SNR and 90 dB spurious-free dynamic range (SFDR) with ultra-low 0.07 ps RMS aperture jitter, allowing accurate undersampling of high-IF signals. The device operates from a single 1.7 V to 1.9 V analog supply with a separate 1.7 V to 1.9 V digital supply, providing flexible power-domain isolation for mixed-signal boards. A pipelined ADC is a high-speed successive-approximation architecture in which the input sample passes through multiple low-resolution flash stages, each stage producing one or more output bits and a residual that is amplified into the next stage. By correcting digital errors across stages, pipelined ADCs reach 12-16 bit resolution at sample rates from 50 Msps to over 500 Msps, making them the workhorse for communications, radar, and instrumentation front-ends. The LTC2195 belongs to the broader class of low-power dual ADCs, which sit in the signal chain between analog conditioning (amplifiers, filters) and the FPGA or DSP that performs demodulation, FFT, or beamforming. Key features include differential inputs with 650 MHz full-power bandwidth, LVDS digital outputs, a serial SPI port for configuration, and a typical power dissipation near 250 mW per channel at 125 Msps. Built-in digital gain and offset correction, dither, and a programmable output demultiplexer reduce downstream FPGA logic and simplify PCB routing. The 52-QFN exposed-pad package keeps thermal resistance low for reliable operation across the -40 C to +85 C commercial range. Typical applications include multi-carrier 3G/4G LTE base-station receivers, diversity radio and MIMO front-ends, IF-sampling software-defined radio (SDR), high-speed oscilloscopes and digitizers, medical imaging ultrasound, and radar/EW digitizing channels. The simultaneous-sampling dual-channel architecture is especially valuable where two channels must be captured with deterministic inter-channel skew, such as I/Q demodulation or phased-array beamforming. When designing with the LTC2195CUKG, the analog input network should be a bandwidth-limited differential transformer or fully-differential driver; the LVDS output traces must be length-matched to within 50 mil, and the exposed pad must be soldered to a continuous ground plane. Good decoupling of both AVDD and DVDD rails with 10 uF bulk and 0.1 uF ceramic capacitors is critical for meeting the 76.8 dB SNR spec. This page synthesizes Analog Devices datasheet parameters, distributor pricing as of 2026-10-13, drop-in same-package alternatives, and practical design guidance not found on the manufacturer product page alone.
LTC2195IUKG - 16-Bit 125Msps Dual ADC | Analog Devices
The Analog Devices LTC2195IUKG is a dual-channel, 16-bit, 125 Msps low-power analog-to-digital converter (ADC) housed in a 52-pin QFN (7x8 mm) package with exposed pad. The device targets demanding communications applications, delivering 76.8 dB SNR and 90 dB spurious-free dynamic range (SFDR) while consuming only 535 mW total power. It supports parallel, SPI/serial, and LVDS digital interfaces for flexible FPGA or ASIC downstream connectivity. What is a pipelined ADC? A pipelined analog-to-digital converter is a multi-stage architecture that converts an analog input into a digital code by passing the signal through a cascade of low-resolution flash sub-converter stages. Each stage resolves a portion of the input, holds the residue, and hands it to the next stage. Pipelined ADCs are favored for sample rates between about 10 Msps and several hundred Msps because they balance high throughput, moderate latency, and excellent dynamic performance at moderate power. The LTC2195IUKG sits inside the broader taxonomy of ADC -> data converter -> signal chain IC -> semiconductor. Key features include simultaneous sampling of two independent analog inputs, ultralow 0.07 ps RMS aperture jitter enabling IF undersampling, and a single +1.8V supply rail that simplifies power-tree design. The pipelined core is paired with a high-bandwidth input buffer and integrated reference, eliminating the need for an external ADC driver in many applications. 1ku list pricing begins at $165.77 as of 2026-10-13. The LTC2195 is part of a pin-compatible family that also includes the 105 Msps LTC2194 and 80 Msps LTC2193, plus speed-grade variants within each speed node. This pin compatibility allows designers to swap parts on the same PCB to trade speed for power without re-laying out the board, which is particularly useful in multi-channel receiver platforms. Typical applications include multi-carrier software-defined radio (SDR) receivers, LTE and 3G base-station digitizers, portable test and measurement instrumentation, medical imaging front-ends, and dual-antenna diversity receivers. The dual simultaneous sampling makes the device especially suited to I/Q demodulation, diversity reception, and any system requiring phase-coherent two-channel capture. When designing in the LTC2195IUKG, ensure the analog inputs are AC-coupled with a bias network biased at the common-mode voltage to preserve linearity. The exposed pad must be soldered to a sufficient ground copper pour to keep junction temperature within the -40C to +85C industrial range at full 125 Msps throughput. This page synthesizes distributor pricing, pin-compatible same-family variants, and practical design notes that complement, but are not contained in, the official Analog Devices datasheet.
LTC2201IUK - 16-Bit 20Msps ADC, 48-QFN | Analog Devices
The Analog Devices LTC2201IUK is a 20 Msps, 16-bit pipelined analog-to-digital converter (ADC) designed for digitizing high-frequency, wide-dynamic-range signals with input frequencies up to 380 MHz, housed in a 48-pin QFN (7x7 mm) package. The device features a programmable-gain-amplifier (PGA) front end, on-chip dither for low-amplitude linearity, and AC performance of 81.6 dB SNR with 100 dB spurious-free dynamic range (SFDR). An ADC (analog-to-digital converter) is a data-converter integrated circuit that samples continuous analog signals and outputs discrete digital codes; pipelined ADCs such as the LTC2201IUK are the dominant architecture for 10-250 Msps converters in communications, test and measurement, and radar/imaging front ends. Within the broader converter hierarchy, this part belongs to the high-speed, high-resolution (>= 16-bit, >= 10 Msps) sub-category that sits between precision SAR converters and ultra-fast flash converters. Its 16-bit resolution places it in the precision-instrumentation tier where DC accuracy, low noise, and wide spurious-free dynamic range are critical. Key features include 81.6 dB SNR and 100 dB SFDR at 5 MHz input, 250 MHz full-power input bandwidth, 2.25 Vp-p or 1.5 Vp-p selectable input range, internal dither for SFDR improvement, and a low-jitter clock-to-data output interface. The pipelined architecture enables high throughput while maintaining low power consumption; a separate output supply supports LVDS or CMOS digital interfaces. Industrial temperature range (-40C to +85C) is supported in this IUK variant. Typical applications include cellular base-station receivers, radar and electronic-warfare systems, digital oscilloscopes, spectrum analyzers, and medical imaging front ends. The wide 250 MHz analog input bandwidth and 20 Msps throughput make the LTC2201IUK well suited to IF-sampling architectures where the ADC samples a down-converted IF directly without an additional mixer stage. The high SFDR of 100 dB is critical for spectral purity in cellular and radar receivers. When designing with this part, drive the analog input with a low-noise, low-distortion differential amplifier (such as the AD8352 or ADL5562) and place the anti-alias filter as close to the inputs as possible. Decouple the analog and digital supplies separately to prevent switching noise from coupling back into the analog front end; the exposed pad on the QFN-48 must be soldered to the ground plane for both electrical and thermal reasons. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet. All specifications are reproduced from the LTC2201 datasheet retrieved 2026-10-13.
LTC2202CUK - 16-Bit 10Msps ADC, 48-QFN | Analog Devices
The Analog Devices LTC2202CUK is a 16-bit, 10Msps pipelined analog-to-digital converter (ADC) optimized for digitizing high-frequency, wide-dynamic-range signals up to 380MHz input bandwidth. It is housed in a 48-lead QFN (7x7 mm) package and is the commercial-temperature (0C to +70C) member of the LTC2202/2203 ADC family from Linear Technology (now part of Analog Devices). According to the Analog Devices LTC2202 product page, key AC performance figures include 81.6dB SNR and 100dB spurious-free dynamic range (SFDR), with the front-end PGA allowing the input range to be optimized between approximately 1V and 2.25V p-p for best linearity. What is a pipelined ADC? A pipelined analog-to-digital converter is a high-speed Nyquist ADC architecture that processes the analog input through a series of low-resolution flash stages, each stage producing a digital residue that is digitized by the next stage. Pipelined ADCs offer a strong trade-off between sampling rate (single-digit MHz to several hundred MHz), resolution (8-16 bits), and power consumption, making them the dominant choice for communications infrastructure, instrumentation, and defense signal acquisition. The LTC2202CUK sits in the 16-bit, 10-25Msps segment commonly used in IF digitizers, ultrasound receivers, and spectrum analyzers. Key features of the LTC2202CUK include 10Msps guaranteed sampling rate, 81.6dB SNR and 100dB SFDR at the Nyquist input, integrated PGA front end for input scaling, LVDS or CMOS-compatible digital outputs, optional dither for improved low-level linearity, and an internal reference. The part operates from a single 3.3V analog supply plus a 3.3V or optional 2.5V digital supply, simplifying system power design. The 48-QFN (7x7) package offers a low thermal-resistance path for the commercial-grade temperature range. The LTC2202CUK is typically used in cellular base-station digitizers, satellite receivers, medical imaging front-ends, sonar processing, and high-speed instrumentation. Its 380MHz input bandwidth makes it suitable for undersampling IF signals, while the integrated PGA helps reject out-of-band noise before the sampling capacitor. Designers should note that the LTC2203 (25Msps) shares the same pinout, which allows a single PCB layout to serve both sampling-rate variants. This page synthesizes distributor pricing, drop-in same-package alternatives, application recommendations, and datasheet references that are not found together on a single distributor listing.
LTC2203CUK - 16-Bit, 25Msps ADC, 48-QFN | Analog Devices
The Analog Devices LTC2203CUK is a 16-bit, 25 Msps pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package. It delivers 81.6 dB SNR and 100 dB spurious-free dynamic range (SFDR), making it suitable for digitizing high-frequency, wide-dynamic-range signals with input frequencies up to 380 MHz. The integrated PGA front end allows the input range to be optimized for the application, and DC linearity is specified at ±4 LSB INL and ±1 LSB DNL with no missing codes. A pipelined ADC is a high-speed Nyquist-rate data converter that resolves an analog input by cascading low-resolution stages and applying digital correction. Pipelined ADCs dominate communications, instrumentation, and imaging front-ends where tens-of-MHz sampling and 12-16 bit resolution must coexist. As a member of this family, the LTC2203CUK targets demanding AC and DC use cases that previously required separate high-speed and precision converters. Key features of the LTC2203CUK include 81.6 dB SNR at 25 Msps, 100 dB SFDR with input tones near Nyquist, ±4 LSB INL and ±1 LSB DNL maximum, and an input bandwidth exceeding 380 MHz. Differential clock and input architecture minimize even-order distortion, while internal bias resistors simplify reference decoupling. The 48-QFN (7x7) package provides a compact footprint with an exposed pad for thermal performance. The LTC2203CUK is built on a BiCMOS process combining bipolar input buffers with CMOS pipeline stages and CMOS output drivers. The BiCMOS input stage preserves low distortion at high IF frequencies, while CMOS logic keeps power consumption and digital noise manageable. Internal reference and CMFB networks simplify board-level design and reduce BOM count. Typical applications include cellular basestation receiver IF digitizers, medical ultrasound beamforming front-ends, high-end instrumentation, software-defined radio, and CCD/camera imaging pipelines. The combination of wide analog input bandwidth and clean dynamic range allows the converter to be placed directly after a low-IF mixer or transimpedance amplifier with minimal analog gain staging. When designing with this device, pay attention to input common-mode voltage, differential clock duty cycle, and reference decoupling. The output data is LVDS-compatible in the related LTC2203 family; the LTC2203CUK exposes CMOS outputs that require careful trace impedance and length matching to avoid degrading SFDR at full sampling rate. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
LTC2204CUK - 16-Bit 40MSPS ADC, 48-QFN | Linear Technology/ADI
The Linear Technology (Analog Devices) LTC2204CUK is a 16-bit, 40MSPS pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package with exposed pad. It pairs the LTC2205 (65MSPS) family in a lower-speed variant, offering the same wideband dynamic range performance (79dB SNR, 100dB SFDR) and an ultralow 90fsRMS jitter front end, enabling undersampling of IF signals up to 700 MHz. The on-chip PGA front end allows the input range to be optimized for the application. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous analog voltage signals into discrete digital codes. Pipelined ADCs in the LTC2204 family are designed for high-frequency, wide-dynamic-range signal acquisition, sitting in the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. They are widely used in communications, instrumentation, and defense applications where both sampling rate and spurious-free dynamic range are critical. Key features include 79dB SNR and 100dB SFDR for demanding communications links, 90fsRMS aperture jitter for excellent noise performance when undersampling high-IF signals, an integrated PGA to optimize input range, and ±4LSB INL / ±1LSB DNL (no missing codes). The differential input architecture and on-chip reference simplify board design while the LVDS/CMOS-compatible output interface supports direct connection to FPGAs and DSPs. The architecture is a 16-stage pipelined switched-capacitor ADC with proprietary linear technology that achieves excellent AC linearity. The 90fsRMS jitter and -88dBFS noise floor at 70MHz input (typical) make it suitable for direct IF sampling in software-defined radios and broadband receivers. Internal references and a digital output randomizer reduce idle tones. Typical applications include cellular base-station receivers, software-defined radio, instrumentation and test equipment, broadband communications, and radar/IF signal processing. The wide input bandwidth also supports medical imaging front ends and spectrum analyzer digitizers. When designing with the LTC2204CUK, ensure the analog input network is properly terminated to 50 ohms with a wideband transformer or differential driver; the exposed pad must be soldered to a low-impedance ground plane for thermal relief and noise performance. Use the internal reference for prototyping and an external reference when temperature stability is critical. This page synthesizes distributor pricing, verified same-brand LTC2204 family drop-in alternatives, and practical design notes not consolidated in any single datasheet - giving engineers a single source for selection, replacement, and BOM risk analysis.
LTC2204IUK - 16-Bit 40Msps ADC | Analog Devices
The Analog Devices LTC2204IUK is a 16-bit, 40 Msps pipelined analog-to-digital converter (ADC) housed in a 48-pin QFN (7x7 mm) package, designed for digitizing high-frequency, wide-dynamic-range signals up to 700 MHz input frequency. The IUK suffix indicates the industrial temperature grade (-40C to +85C), and the device ships in a 48-lead exposed-pad QFN that supports the part's 1.1 W typical power dissipation. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time analog voltages into discrete digital codes at a programmable sampling rate. The 16-bit pipelined architecture sits between successive-approximation register (SAR) ADCs (lower speed, lower power) and flash ADCs (highest speed, lowest resolution), making pipelined 16-bit converters the workhorse choice for communications, radar, and instrumentation applications where both wide analog bandwidth and >80 dB dynamic range are required. The LTC2204IUK belongs to the broader category of mixed-signal ICs > data converters > high-speed ADCs. Key features include 79 dB SNR, 100 dB spurious-free dynamic range (SFDR), and ultralow 90 fs RMS aperture jitter, which together permit accurate undersampling of IF signals in software-defined radio and digital oscilloscope front ends. The maximum DC specifications reach +/-4 LSB INL and +/-1 LSB DNL with no missing codes, ensuring monotonic transfer curves for precision measurement. A programmable PGA front end (0 dB to 36 dB in 4 dB steps) lets the user optimize the input range from 1.0 Vp-p to 2.5 Vp-p, easing interface to a wide variety of IF amplifiers and SAW filters. Architecturally, the LTC2204IUK uses a multi-stage switched-capacitor pipeline with digital error correction, followed by an internal reference and LVDS/CMOS-compatible output drivers. Optional LVDS outputs (one or two lanes) reduce digital switching noise in noise-sensitive systems, while the CMOS mode provides simpler interfacing to FPGAs and ASICs without external LVDS receivers. Typical applications include cellular base-station receivers, digital oscilloscopes, spectrum analyzers, satellite modems, and medical imaging. The 700 MHz input bandwidth with 90 fs jitter makes it well suited for undersampling intermediate frequencies in IF-sampling radio designs. A design consideration: the exposed thermal pad (pin 49) must be soldered to a continuous ground plane to achieve the rated 1.1 W dissipation. Thevenin termination on each LVDS output pair is recommended when driving long PCB traces or backplane connectors to preserve signal integrity. This page synthesizes distributor pricing, drop-in alternatives, application notes, and design notes that are not present on the manufacturer datasheet, giving engineers a single source for sourcing, comparing, and designing with the LTC2204IUK.
LTC2205CUK - 16-Bit 65Msps ADC, 79dB SNR | Analog Devices
The Analog Devices LTC2205CUK is a 16-bit, 65 Msps pipelined analog-to-digital converter housed in a 48-pin QFN (7x7 mm) package with exposed pad. It is designed for digitizing high-frequency, wide dynamic range signals up to 700 MHz input frequency, delivering 79 dB SNR and 100 dB spurious-free dynamic range (SFDR). The internal PGA front end allows the input range to be optimized between 1.5 Vp-p and 2.25 Vp-p, giving system designers flexibility between SNR and SFDR trade-offs. The -65 lA / -40 lA versions are identical except for sample rate. A pipelined ADC is a successive-stage converter architecture that achieves high sample rates with multi-bit per stage error correction. The LTC2205 uses this approach to combine 16-bit resolution at 65 Msps while maintaining low latency suitable for many communications and instrumentation channels. AC performance is the headline figure for this class of converter, where SNR, SFDR, and aperture jitter determine achievable dynamic range. Key features include ultralow aperture jitter of 90 fsRMS, enabling excellent noise performance for IF/RF undersampling architectures; ±4 LSB INL and ±1 LSB DNL maximum with no missing codes; CMOS-compatible digital outputs with optional LVDS operation; an integrated PGA with 1.5 Vp-p to 2.25 Vp-p input range; and shutdown / nap modes for power-sensitive applications. The 48-lead QFN (7x7) package with exposed pad provides thermal resistance suited to the commercial temperature grade. Architecturally, the LTC2205 uses 9 pipeline stages with proprietary digital error correction. The analog input is fully differential for best harmonic performance, and the on-chip sample-and-hold can accurately capture signals at the full 65 Msps rate. An internal bandgap reference sets full-scale. The data interface can be configured as single-ended CMOS or low-voltage differential- LVDS for noise-immune board-level routing. This combination suits the LTC2205 to demanding communications, radar, and test-instrumentation front ends where small-signal capture at high IF frequencies is required. Typical applications include cellular base-station digitizers where the part's 700 MHz input bandwidth permits direct IF sampling, cable head-end CMTS / upstream receivers, radar and EW intermediate-frequency sampling, broadband satellite receivers, and high-end instrumentation digitizers such as digital oscilloscopes and spectrum analyzers. The differential input structure rejects common-mode noise from the upstream driver amplifier. When designing with this part, drive the analog input with a low-noise, low-distortion differential op-amp or balun network, keep analog and digital ground returns separated under the exposed pad, and bypass the supply pins with low-ESR ceramics placed within a few millimeters of the device. The PGA setting directly trades SNR against SFDR and should be chosen after measuring both against the system target. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical front-end design notes not found in the manufacturer datasheet.
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.