ADC/DAC
उत्पाद (3,100+)
KAD2708C-17Q68 - 8-bit 170MSPS ADC, 68-QFN | Renesas
The Renesas (formerly Intersil) KAD2708C-17Q68 is a low-power, 8-bit, 170 MSPS high-performance analog-to-digital converter built on Intersil's proprietary FemtoCharge technology on a standard CMOS process, housed in a 68-pin RoHS-compliant QFN package (10x10 mm) with exposed thermal paddle. It offers high dynamic performance with 49.2 dBFS SNR at fIN = 138 MHz while consuming less than 265 mW, includes an over-range indicator, and a selectable divide-by-2 input clock buffer. An ADC (Analog-to-Digital Converter) is a data converter that samples continuous analog input signals and produces discrete digital codes at a fixed sample rate, forming the bridge between the analog front-end (amplifiers, mixers, filters) and the digital signal processing block (FPGA, ASIC, DSP). The KAD2708C belongs to the pipelined ADC sub-family, which is optimized for high-sample-rate, low-to-medium-resolution applications in communications, instrumentation, radar, and digital oscilloscope front ends, sitting in the broader data-converter IC taxonomy under mixed-signal semiconductor devices. Key features of the KAD2708C-17Q68 include its 170 MSPS maximum conversion rate (one variant in the 105/170/210/275/350 MSPS family), 8-bit resolution, LVCMOS-compatible digital outputs, an internal reference and sample-and-hold, and a single 1.8 V supply requirement. The FemtoCharge architecture minimizes analog input capacitance and enables low-noise, low-power operation without sacrificing linearity. The pipelined multi-stage architecture uses a switched-capacitor front-end with gain stages and a final flash for high throughput. The selectable divide-by-2 clock input eases interface with common system clock frequencies, while the over-range indicator simplifies gain control in AGC loops. Together these features deliver a usable 49.2 dBFS SNR and ENOB performance suitable for demanding IF-sampling and signal-analysis applications. Typical applications for the KAD2708C-17Q68 include IF sampling in software-defined radio (SDR) and digital receivers, digital oscilloscope and test instrument front-ends, radar return signal digitization, medical imaging and ultrasound receiver signal paths, and high-speed data acquisition systems for industrial and aerospace instrumentation. The 1.8 V supply and small 68-QFN footprint also suit portable or space-constrained designs. When designing with this device, provide a clean low-noise 1.8 V analog supply (AVDD) and a separate 1.8 V driver supply (OVDD) for the LVCMOS outputs to limit digital switching noise coupling back into the analog front end. The exposed paddle must be soldered to a properly sized ground plane for thermal and electrical performance - a 4-layer PCB with continuous ground beneath the paddle is recommended for full 170 MSPS operation. This page synthesizes distributor pricing, pin-compatible KAD2708C family members, and practical design notes not found in the manufacturer datasheet alone, including an explicit comparison with the broader 68-QFN pin-compatible KAD2710C 10-bit family.
KAD2708C-27Q68 - 8-Bit 275MSPS ADC LVCMOS QFN-68 | Renesas
The Renesas KAD2708C-27Q68 is an 8-bit, 275 MSPS, single-channel pipelined analog-to-digital converter housed in a 68-pin QFN package with an exposed thermal paddle. It is built on Intersil's proprietary FemtoCharge technology on a standard CMOS process, delivering 49.2 dBFS SNR at a 138 MHz input frequency while consuming less than 265 mW. The ADC features an over-range indicator, a selectable divide-by-2 input clock divider, and LVCMOS-compatible outputs that interface easily with FPGAs and digital ASICs. An analog-to-digital converter (ADC) is a data-conversion component that transforms a continuous-time, continuous-amplitude analog signal into discrete digital codes for downstream processing. Pipeline ADCs such as the KAD2708C are the workhorse of high-speed, moderate-resolution conversion (8-14 bits) and sit within the broader class of Nyquist-rate data converters used in instrumentation, communications, and imaging. Power management ICs, clock generators, and high-speed signal-conditioning amplifiers complete the typical signal-chain surrounding such an ADC. Key features include 49.2 dBFS SNR at 138 MHz input, 60 dBFS SFDR, less than 265 mW power dissipation at 275 MSPS, a 1.5 Vpp differential analog input range, and on-chip track-and-hold. The QFN-68 (10x10 mm) exposed-paddle package provides a low thermal resistance path, making the part suitable for thermally constrained designs without an external heatsink. Programmable full-scale range and selectable clock-divider simplify board-level clocking and gain calibration. Architecturally, the KAD2708C uses a multi-stage pipelined converter core with digital error correction, achieving 8-bit linearity without complex calibration. The FemtoCharge switched-capacitor front end samples input bandwidths well above 200 MHz, while proprietary reference-biasing schemes minimize distortion. The divide-by-2 input allows designers to feed a 550 MHz external clock and divide internally, easing clock-tree routing on dense multi-ADC boards. Typical applications include medical imaging, radar signal processing, instrumentation and oscilloscope front ends, communications receivers, and high-speed data acquisition in industrial nondestructive testing. The 275 MSPS sample rate exceeds the Nyquist requirement for many IF-band signals found in radar and software-defined radio. When designing with this ADC, ensure the analog input is AC-coupled or DC-biased within the KAD2708C common-mode range to avoid saturating the front-end switched-capacitor network. Place the analog and digital decoupling capacitors as close to the package as possible to preserve SNR and SFDR at high input frequencies. This page synthesizes distributor pricing, pin-compatible same-family alternatives, and practical layout notes not found in the manufacturer datasheet, helping engineers shorten design cycles and select drop-in replacements with confidence.
KAD2708L-17Q68 - 8-bit 170MSPS ADC LVDS Output | Renesas
The Renesas KAD2708L-17Q68 is a member of the pin-compatible KAD2708L family of low-power, high-performance 8-bit Analog-to-Digital Converters, specified at 170 MSPS sample rate with LVDS-compatible digital outputs, fabricated on Intersil's proprietary FemtoCharge technology node in a standard CMOS process and housed in a 68-lead RoHS-compliant QFN (10x10 mm) package with exposed thermal paddle. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous-time analog input voltages and converts them into discrete digital codes at a defined sample rate. The KAD2708L family belongs to the pipelined ADC architecture class, a sub-category of Nyquist-rate data converters optimized for high sampling rates (>100 MSPS) with low latency and moderate resolution (8-10 bits). Pipelined ADCs sit hierarchically between SAR ADCs (lower speed, higher resolution) and flash ADCs (highest speed, lowest resolution), making them the workhorse for digitizing IF and baseband signals in communications, instrumentation, and defense systems. Key features of the KAD2708L-17Q68 include 8-bit resolution, 170 MSPS sample rate in the -17 speed grade, 1.5 Vp-p differential analog input range, 600 MHz analog input bandwidth, an on-chip voltage reference, internal track-and-hold, an over-range indicator, and a selectable divide-by-2 input clock divider. Typical dynamic performance reaches 48.8 dBFS SNR at fIN = 175 MHz, while total power consumption is held below 330 mW. Designers select this part when the system requires moderate-resolution high-speed sampling for waveform digitization, radar IF, or test equipment where LVDS signaling provides robust noise immunity over longer PCB traces and backplane interconnects. The exposed paddle aids thermal dissipation and must be soldered to a ground plane for specified performance. Typical applications include digital oscilloscopes, communications test equipment, radar/sonar IF digitizers, and high-speed data acquisition systems. When designing with this part, ensure the exposed paddle is soldered to a continuous ground plane with multiple thermal vias, the analog and digital supply domains are decoupled with 0.1 uF and 10 uF capacitors placed close to the supply pins, and LVDS traces are length-matched within the receiver skew budget.
KAD2708L-21Q68 - 8-bit 210MSPS LVCMOS ADC, 68-QFN | Renesas
The Renesas (formerly Intersil) KAD2708L-21Q68 is a single-channel, 8-bit, 210 MSPS analog-to-digital converter built on Intersil's proprietary FemtoCharge™ technology on a standard CMOS process, offered in a 68-lead QFN (10x10 mm) package. The KAD2708L-21Q68 variant of the KAD2708L family delivers 210 MSPS sampling rate with LVCMOS digital outputs, 48.8 dBFS SNR at fIN = 175 MHz, and power consumption below 330 mW from a 1.8 V AVDD2 / 3.3 V AVDD3 supply rail. A pipelined ADC is a high-speed sampling architecture that converts an analog input through a cascade of low-resolution flash stages, each stage producing a residue passed to the next. Pipelined ADCs sit within the broader ADC hierarchy as the dominant solution for sampling rates from ~10 MSPS to ~1 GSPS where successive-approximation (SAR) converters become too slow and flash converters become impractical due to comparator count. The KAD2708L family is one of the industry's lowest-power 8-bit high-performance ADC families, designed for communications, oscilloscope, and imaging front-ends. Key features of the KAD2708L-21Q68 include 8-bit resolution, 210 MSPS maximum sampling rate, single-channel LVCMOS output, an over-range indicator for out-of-range detection, a selectable divide-by-2 input clock divider for flexible clocking, and pin compatibility across the broader KAD2708L/KAD2710C 68-QFN family offering 8- and 10-bit resolutions at 105 to 350 MSPS. The device operates from AVDD2 = 1.8 V and AVDD3 = 3.3 V supplies, providing easy interfacing to modern FPGA and ASIC LVCMOS receivers. From an architecture standpoint, FemtoCharge™ technology uses a small switched-capacitor charge-redistribution front-end combined with a pipelined core to achieve wide input bandwidth and low aperture jitter. The LVCMOS output drivers ease board-level integration with FPGAs and ASICs that do not support LVDS, removing the need for external level-translation buffers. The 68-QFN package exposes the die pad for thermal dissipation, and the part consumes under 330 mW in operation. Typical applications include digital oscilloscopes, communication test equipment, radar and lidar front-ends, IF signal digitisation in software-defined radio, medical imaging subsystems, and high-speed data-acquisition cards. The combination of low power, small footprint, and pin-compatible family scalability makes the KAD2708L-21Q68 a strong fit where multiple sampling rates or resolutions are needed across product variants. When designing with this part, ensure the analog input network is designed for the ADC's full-power input bandwidth and that the LVCMOS outputs are properly terminated at the receiver. The selectable divide-by-2 input clock divider allows use of an external clock oscillator up to 420 MHz while presenting a clean 210 MHz internal sampling clock. Decoupling must follow the datasheet reference layout, particularly the exposed pad connection to the analog ground plane. This page synthesizes distributor pricing, drop-in same-package alternatives, comparison parameters, and practical design notes not aggregated on the manufacturer datasheet, providing a single reference for sourcing, selection, and PCB-level integration decisions.
KAD2708L-27Q68 - 8-Bit 275MSPS ADC LVCMOS QFN-68 | Renesas
The Renesas (formerly Intersil) KAD2708L-27Q68 is a low-power 8-bit, 275 MSPS single-channel analog-to-digital converter housed in a 68-lead QFN package with exposed thermal pad. It is part of the pin-compatible KAD2708L/KAD2710L family, with the -27 speed grade delivering 275 MSPS sampling while other family members reach up to 350 MSPS. Key headline parameters are 8-bit resolution, 275 MSPS maximum sample rate, LVCMOS-compatible outputs, and a 1.5 VPP differential full-scale analog input range. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that translates continuous-time analog signals into discrete digital codes at a rate set by its sampling clock. High-speed pipeline ADCs such as the KAD2708L sit at the top of the data-converter taxonomy: ADC -> pipeline ADC -> high-speed ADC -> data converter IC -> mixed-signal semiconductor. They are used wherever wideband analog signals must be digitized for downstream DSP, FPGA, or ASIC processing. Differentiating specifications include 48.8 dBFS SNR at fIN = 175 MHz, 600 MHz full-power analog input bandwidth, less than 330 mW power consumption at full sample rate, an internal track-and-hold, on-chip reference, and a selectable divide-by-2 clock input. The FemtoCharge™ switched-capacitor architecture enables the low-power figure while preserving dynamic performance in the second Nyquist zone. The device uses a 1.5 VPP differential analog input, LVCMOS digital outputs, and an LVDS-style clock input (LVDS/LVCMOS compatible). It also features an over-range indicator and configurable CMOS output timing, simplifying board-level FPGA capture. RoHS-compliant 68-QFN packaging with exposed paddle keeps the die-to-ambient thermal resistance low for sustained high-speed operation. Typical applications include radar intermediate-frequency (IF) digitizers, broadband test-and-measurement equipment, communications receiver IF chains, and high-speed medical imaging front ends. The combination of 8-bit resolution, 275 MSPS sampling, and low power suits cost-sensitive yet performance-demanding designs. When designing with this part, keep analog input traces length-matched for 50 Ohm differential impedance, place the exposed paddle over a continuous ground pour, and decouple AVDD and DRVDD separately to limit digital switching noise coupling back into the analog front end. This page synthesizes distributor pricing, same-family drop-in alternatives (KAD2708L-35Q68, KAD2708L-21Q68, KAD2708L-10Q68), and practical design notes not aggregated in the manufacturer datasheet.
KAD2708L-35Q68 - 8-bit, 350MSPS Single-Channel ADC | Renesas
The Renesas (formerly Intersil) KAD2708L-35Q68 is a 8-bit, 350 MSPS single-channel Analog-to-Digital Converter (ADC) with LVCMOS outputs, fabricated on Intersil's proprietary FemtoCharge technology on a standard CMOS process. It is packaged in a 68-lead QFN (10 mm × 10 mm) with an exposed thermal paddle, and it operates over -40 °C to +85 °C. This -35 speed grade is the fastest member of the KAD2708L pin-compatible family, which also includes 275/210/170/105 MSPS grades, allowing board reuse across a wide range of sampling-rate requirements. Typical dynamic performance is 48.8 dBFS SNR at fIN = 175 MHz, while total power consumption is less than 330 mW. A pipelined ADC (or pipelined analog-to-digital converter) is a multi-stage converter that cascades several low-resolution flash stages with interstage sample-and-hold and digital error correction. Pipelined ADCs are widely used in communications, instrumentation, and defense applications because they achieve sampling rates from tens to hundreds of MSPS while preserving excellent dynamic range. Within the broader taxonomy, this places the KAD2708L-35Q68 inside the data-converter family, itself a sub-domain of mixed-signal integrated circuits and ultimately the broader semiconductor category. Key features include an on-chip voltage reference, internal track-and-hold, 1.5 VP-P differential input voltage range, 600 MHz analog input bandwidth, two's-complement output format, an over-range indicator, and a selectable divide-by-2 input clock divider. The LVCMOS interface simplifies FPGA or ASIC capture without requiring an LVDS receiver, lowering BOM cost in cost-sensitive designs. Internal bandgap trimming and FemtoCharge switched-capacitor front-end design yield the low 330 mW dissipation figure, important for densely populated boards and thermally constrained enclosures. Architecture highlights include an internal track-and-hold amplifier, a 1.5 VP-P differential analog input stage, and on-chip reference. Two's-complement digital output coding is supplied through parallel LVCMOS ports with over-range flagging. The selectable divide-by-2 clock input simplifies clock-tree design by accepting a 700 MHz LVCMOS/CMOS clock and producing an internal 350 MHz sample clock, eliminating the need for an external divider. Typical applications include high-speed data acquisition, radar/EW receivers, medical imaging front-ends, communications test equipment, and set-top box / cable-modem downstream capture. Its 8-bit resolution and 350 MSPS throughput make it suitable for digitizing wide-bandwidth IF signals in software-defined-radio (SDR) receivers. Design consideration: route the analog input traces as a 100 Ω differential pair, keep AVDD2 (1.8 V) and AVDD3 (3.3 V) supplies decoupled with 0.1 µF and 10 µF ceramics close to each pin, and provide a solid thermal land pattern under the exposed paddle for heat removal. When evaluating alternatives, note that the KAD2708L family shares pinout across all speed grades, so a 27 or 17 grade can be fitted without PCB rework. This page synthesizes distributor pricing, pin-compatible drop-in alternatives drawn from the same datasheet family, and practical layout guidance - information not consolidated on the manufacturer datasheet or any single distributor listing.
KAD2710C-10Q68 - 10-Bit 105MSPS Pipelined ADC | Renesas
The Renesas (formerly Intersil) KAD2710C-10Q68 is a 10-bit, 105 MSPS, single-channel pipelined Analog-to-Digital Converter built on Intersil's proprietary FemtoCharge technology, packaged in a 68-pin QFN (10x10 mm) with exposed thermal paddle. The KAD2710C-10Q68 is the lowest-speed member of the KAD2710C family, offering selectable sample rates of 105/170/210/275 MSPS across the family while the -10Q68 suffix specifically denotes the 105 MSPS speed grade with LVCMOS-compatible digital outputs. A pipelined ADC is a type of analog-to-digital converter that uses cascaded low-resolution stages (typically 1.5-bit sub-ADCs and DACs with residue amplification) to digitize an analog input at high sample rates while maintaining low power consumption. Within the broader data converter hierarchy, the KAD2710C-10Q68 sits between successive-approximation (SAR) ADCs (low speed, low latency) and flash ADCs (highest speed, lowest resolution per stage), making it ideal for intermediate-frequency sampling in communications systems, portable imaging, and industrial digitizers. Key features of the KAD2710C-10Q68 include 55.6 dBFS SNR at fIN = 138 MHz, less than 265 mW power consumption at full sample rate, an over-range indicator for signal monitoring, and a user-selectable divide-by-2 input clock divider for flexible clock tree design. The CMOS process FemtoCharge architecture minimizes aperture jitter and allows the converter to maintain dynamic performance over the full industrial temperature range without active thermal management. This 10-bit ADC is designed for high dynamic performance in bandwidth-limited intermediate-frequency signal chains. The single 1:1 pipelined core with digital error correction provides spurious-free dynamic range suitable for cellular base-station receiver IF stages, digital oscilloscope front ends, and radar signal processing. The exposed paddle of the 68-QFN package provides a low thermal resistance path that supports full 105 MSPS operation across the -40 C to +85 C industrial range. Typical applications include IF sampling in wireless infrastructure, portable ultrasound beamformers, digital oscilloscope input channels, and radar return digitizers. The LVCMOS outputs interface directly with low-cost FPGAs or ASICs without requiring an external LVDS receiver, which simplifies the digital capture path for cost-sensitive designs. When designing with this ADC, ensure the analog input is bandwidth-limited to less than half the sampling rate to satisfy the Nyquist criterion. Decouple AVDD and DVDD separately with low-ESR 0.1 uF and 10 uF capacitors placed within a few millimetres of the supply pins, and provide a clean, low-jitter clock to the CLK+ / CLK- inputs for optimum SNR performance. This page synthesizes manufacturer datasheet excerpts, distributor stock and pricing, drop-in pin-compatible same-family alternatives, and practical PCB layout notes that are not collated on any single manufacturer or distributor page.
KAD2710C-17Q68 - 10-Bit 170MSPS Pipelined ADC, 68-QFN | Renesas
The Renesas KAD2710C-17Q68 is a 10-bit, 170 MSPS, single-channel pipelined analog-to-digital converter in a 68-lead QFN (10x10 mm) exposed-pad package. It is the 170 MSPS speed grade of the KAD2710C family, which also offers 105, 210 and 275 MSPS variants, and the -17Q68 part number designates the LVCMOS-compatible output variant in the QFN-68 package. A pipelined ADC (analog-to-digital converter) is a high-speed data converter architecture that resolves an analog input through multiple cascaded low-resolution stages, each driving a residue into the next. Compared with successive-approximation or flash converters, pipelined ADCs deliver the best balance of sampling rate, resolution, power dissipation, and input bandwidth, which is why they dominate communications infrastructure, instrumentation, and imaging. The KAD2710C family is the industry's lowest-power 10-bit pipelined ADC at 275 MSPS, consuming under 265 mW with 55.6 dBFS SNR at fIN = 138 MHz, built on Renesas' proprietary FemtoCharge technology in a standard CMOS process. The KAD2710C-17Q68 integrates a selectable divide-by-2 input clock buffer, an over-range indicator for gain ranging, and an internal reference. Its LVCMOS outputs interface directly with FPGAs and ASICs at speeds up to 170 MSPS, while the exposed-paddle QFN-68 package provides low thermal resistance (theta-JA of approximately 24 C/W) suitable for industrial-temperature operation from -40C to +85C. The 1.8 V analog and 3.3 V output supply domains simplify interfacing with modern FPGA I/O without level translators. Typical applications include digital oscilloscopes, communication test equipment, IF sampling in software-defined radio, radar signal processing, medical imaging front-ends, and high-speed data acquisition cards. The 170 MSPS sampling rate easily covers intermediate-frequency bands up to 70 MHz while leaving headroom for input-bandwidth-limited anti-alias filtering. Designers should ensure the exposed paddle is soldered to a continuous ground plane and that the analog input is AC-coupled with 50 ohm-controlled impedance to realize the published ENOB and SFDR performance.
KAD2710C-21Q68 - 10-Bit 210MSPS ADC | Intersil (Renesas) | QFN-68
The Renesas (formerly Intersil) KAD2710C-21Q68 is a 10-bit, 210 MSPS, single-channel, high-performance analog-to-digital converter (ADC) in a 68-pin QFN (10x10 mm) package with an exposed thermal pad. It belongs to the KAD2710C pin-compatible ADC family, which offers 8- and 10-bit resolutions and sample rates from 105 to 350 MSPS. The KAD2710C-21Q68 variant is the 210 MSPS speed grade with LVCMOS-compatible digital outputs. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous analog input voltages into discrete digital codes at a specified sampling rate. High-speed ADCs like the KAD2710C sit between the analog front-end (amplifiers, filters, mixers) and the digital back-end (FPGA, ASIC, DSP) in signal acquisition systems. They are the critical bridge that determines the dynamic range, bandwidth, and fidelity of any digital receiver, oscilloscope, or radar processing chain. ADC performance is commonly characterized by SNR (signal-to-noise ratio), SFDR (spurious-free dynamic range), ENOB (effective number of bits), and aperture jitter. The KAD2710C-21Q68 leverages Intersil's proprietary FemtoCharge™ technology on a standard CMOS process to achieve 55.6 dBFS SNR at an input frequency of 138 MHz while consuming less than 265 mW. Key features include an integrated over-range indicator, a selectable divide-by-2 input clock buffer, an internal reference, and LVCMOS output drivers. The 68-pin QFN package provides an exposed paddle for low thermal resistance, allowing operation across the industrial temperature range of -40°C to +85°C. Architecture is a pipelined multi-stage ADC with on-chip sample-and-hold and internal bandgap reference, supporting single-ended analog inputs. The pipelined architecture delivers high sample rates at moderate power consumption compared to flash or successive-approximation designs. Typical applications include digital oscilloscopes, IF sampling in communications receivers, radar signal processing, medical imaging front-ends, and high-speed data acquisition cards. The wide input bandwidth supports undersampling architectures for IF digitization. When designing with this device, ensure the analog input is properly terminated and that the input clock has low jitter (< 1 ps RMS) to preserve SNR at high input frequencies. Decouple all supply pins with 0.1 µF and 10 µF capacitors placed as close to the package as possible, and tie the exposed paddle to a clean ground plane. This page synthesizes distributor pricing, drop-in same-family and cross-brand ADC alternatives, application notes, and practical PCB design guidance not collected in the manufacturer datasheet.
KAD2710C-27Q68 - 10-Bit 275MSPS ADC, 68-QFN | Renesas/Intersil
The Renesas (formerly Intersil) KAD2710C-27Q68 is a 10-bit, 275 MSPS, high-performance pipelined analog-to-digital converter housed in a 68-pin QFN (10x10 mm) package. It uses Intersil's proprietary FemtoCharge technology on a standard CMOS process to deliver 55.6 dBFS SNR at fIN = 138 MHz while consuming less than 265 mW from a 1.8 V analog supply. The -27 speed grade is the highest sample-rate option in the KAD2710C family. A pipelined ADC (Analog-to-Digital Converter) is a high-speed data converter that processes analog input signals by splitting conversion into successive low-resolution stages, each operating on a delayed sample of the input. Pipelined ADCs sit in the data-acquisition hierarchy as follows: ADC -> data converter -> data acquisition IC -> mixed-signal semiconductor. They are the workhorse of high-speed IF sampling, communications receivers, and instrumentation. Key features of the KAD2710C-27Q68 include an over-range indicator, a selectable divide-by-2 input clock buffer, LVDS-compatible outputs for noise-immune digital signaling, and a wide analog input bandwidth that supports undersampling of IF signals. The 1.7 V to 1.9 V analog and digital supply rails and integrated reference simplify power-tree design, while the exposed paddle QFN-68 package keeps the junction-to-ambient thermal resistance low for sustained full-rate operation. FemtoCharge technology is a switched-capacitor architecture that reduces the input-referred noise and kT/C sampling error typical of CMOS ADCs, allowing the KAD2710C to combine 10-bit resolution with 275 MSPS sampling without an expensive SiGe or BiCMOS process. The 1.8 V LVDS outputs minimize EMI in dense digital fan-out paths and pair naturally with FPGA LVDS receivers. Typical applications include wireless infrastructure digitizers, IF sampling for SDR platforms, medical imaging front ends, and high-speed test & measurement digitizers. The 68-QFN footprint is shared across the KAD2710C/KAD2708L family, allowing design teams to migrate between 8-bit and 10-bit resolutions and between 105/170/210/275 MSPS speed grades without re-laying-out the PCB. When designing with the KAD2710C-27Q68, treat the exposed paddle as the primary thermal and ground return - use a continuous top-layer ground pour with at least 4 thermal vias to the inner ground plane. Provide a clean, low-noise 1.8 V AVDD and DRVDD using an LDO or ferrite-isolated switching converter; the SNR is degraded by any switching noise riding on the analog rail. This page synthesizes distributor pricing, drop-in alternatives within the KAD2710C family, and PCB layout considerations not collected in the datasheet summary - information gain beyond what a parametric search on DigiKey or Octopart provides.
KAD2710L-10Q68 - 10-Bit 105MSPS ADC, LVDS Output | Renesas
The Renesas KAD2710L-10Q68 is a 10-bit, 105 MSPS single-channel pipelined analog-to-digital converter with LVDS-compatible outputs, housed in a 68-pin QFN (10x10 mm) package. It belongs to the KAD2710L pin-compatible ADC family and integrates Intersil's proprietary FemtoCharge(TM) technology on a standard CMOS process to deliver low-power, high-dynamic-performance conversion. Headline parameters include 105 MSPS sample rate, 10-bit resolution, 55.6 dBFS SNR at fIN = 138 MHz, and 275 mW typical power consumption. An analog-to-digital converter (ADC) 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 are a high-speed ADC architecture that uses a cascade of low-resolution stages to achieve conversion rates from a few MSPS to several hundred MSPS, occupying a middle position in the converter hierarchy: Nyquist SAR -> pipelined ADC -> high-speed flash ADC, and they sit within the broader category of data acquisition ICs -> mixed-signal ICs -> integrated circuits. They are widely used in communications infrastructure, instrumentation, and imaging where both speed and resolution are required. Key features of the KAD2710L-10Q68 include a selectable divide-by-2 input clock divider, an over-range indicator for system-level gain control, LVDS digital outputs that simplify board-level routing and reduce EMI, and a single 1.8 V supply operation. The -10 speed grade limits the maximum sample rate to 105 MSPS, while the same pinout family extends up to 275 MSPS, enabling a single PCB to support multiple sampling-rate options. The 68-QFN exposed-paddle package provides a low thermal resistance path suitable for the device's continuous-conversion duty cycle. Internally, the KAD2710L uses a multi-stage switched-capacitor pipeline fronted by a track-and-hold, with proprietary FemtoCharge(TM) technology minimizing the size of the sampling capacitors. This reduces the input drive requirements and lowers kT/C noise contribution. An internal bandgap reference and proprietary bias network provide stable operation across the -40 C to +85 C industrial temperature range without external calibration, while a selectable LVDS or LVCMOS output mode allows the same converter to interface with either legacy CMOS or modern LVDS FPGA/ASIC receivers. Typical applications include cellular base-station IF digitizers, communications test equipment, low-cost portable oscilloscopes, and medical imaging front-ends. The wide LVDS eye-pattern tolerance makes the device well-suited to long PCB trace lengths to an FPGA, while the low power budget simplifies thermal design in dense multi-channel systems. When designing with this ADC, allocate adequate ground and power planes around the package and follow the recommended input drive network: a series resistor and shunt capacitor placed close to the analog input pin optimize SNR at high input frequencies. This page synthesizes distributor pricing, pin-compatible family alternatives (KAD2710C and KAD2708L families), and practical PCB layout notes that are not always presented together in the manufacturer datasheet.
LDC3114QPWRQ1 - 4-Ch Inductive Touch LDC, AEC-Q100 | TI
The Texas Instruments LDC3114QPWRQ1 is a 4-channel hybrid inductive touch and inductance-to-digital converter with a 0.16 ksps output rate and I2C interface, housed in a 16-pin TSSOP (PW) package and qualified to AEC-Q100 for automotive applications. The orderable part number LDC3114QPWRQ1 corresponds to the tape-and-reel packaging of the TSSOP-16 device, whose body measures 5.00 mm x 4.40 mm nominal and whose device marking is QDC3114. An inductance-to-digital converter (LDC) is a sensor interface IC that measures the shift in inductance of an external PCB coil caused by the proximity or deflection of a conductive metal target. Within the sensor signal-chain hierarchy, the LDC3114-Q1 sits as an analog front end (AFE) / data converter between passive inductive sensors and a host microcontroller, converting resonance frequency shifts into digital proximity or touch data transmitted over I2C. Key features include four independent sensing channels for multi-button or multi-target designs, contactless touch sensing through a wide variety of panel materials including metal, and inductance-based linear position sensing of metal targets. Because the coil can be implemented on a small PCB located behind the panel, the technology enables fully sealed, IP-rated HMI buttons with no mechanical wear. The hybrid architecture combines an LC oscillator front end with digital processing, outputting proximity/touch data at up to 0.16 ksps (160 samples per second) per the device description from DigiKey and datasheets.com. The I2C-compatible serial interface allows a single host to configure threshold registers and read per-channel touch status and raw proximity data. Typical applications include automotive HMI touch buttons (steering wheel, center console, door panels), precise linear position sensing of metal targets in automotive actuators, and industrial control panels requiring sealed, durable user interfaces. A key design consideration is coil and target geometry: sensitivity depends on coil size, target distance, and panel thickness, so the sensor coil should be tuned within the device's supported frequency range and thresholds calibrated per the TI datasheet guidance. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
LMP91000SD/NOPB - Configurable AFE Potentiostat for Chemical Sensing | TI
The Texas Instruments LMP91000SD/NOPB is a programmable analog front-end (AFE) designed for micro-power electrochemical sensing applications, integrating a complete signal path between a chemical sensor and a microcontroller. It provides 1 channel, 8-bit register interface, operates from a 2.7V to 5.25V analog and digital supply, and is housed in a 14-pin WSON (4 mm x 4 mm) package. According to the TI product page, the device generates an output voltage proportional to the cell current, making it a drop-in read sensor analog subsystem for portable gas detection. An analog front-end (AFE) for electrochemical sensors is a mixed-signal IC that combines a potentiostat (a controlled-voltage/current bias circuit for the sensor working electrode), a transimpedance amplifier (TIA) that converts the sensor's picoampere-level current into a usable voltage, and a digital interface for microcontroller configuration. The LMP91000 sits inside the broader sensor signal chain hierarchy: electrochemical sensor -> AFE/potentiostat -> ADC -> microcontroller. Its programmability enables it to support multiple electrochemical sensors including 3-lead toxic gas sensors and 2-lead galvanic cells. Key features of the LMP91000SD/NOPB include a fully programmable transimpedance amplifier (TIA) gain, programmable bias voltage for the working electrode, programmable load resistor for the reference electrode, and an integrated temperature sensor to compensate for sensor temperature drift. The device also integrates a configurable I2C-compatible serial interface. Its low quiescent current makes it suitable for battery-powered portable gas detectors, and its small 4 mm x 4 mm WSON-14 footprint enables dense PCB layouts in wearable multi-gas sensor modules. Technically, the LMP91000 implements a true potentiostat topology using an op-amp-based control loop with MOSFET output stages, allowing the working electrode potential to be held precisely at the programmed bias voltage while sourcing or sinking the cell current. The integrated 8-bit DAC sets the bias voltage in 1 mV-typical steps, and the TIA gain is programmed through internal feedback resistor selection, giving the designer flexibility to match sensors with different current ranges (nA-level toxic gas sensors to mA-level bio-sensors). Typical applications include portable toxic gas detectors (CO, H2S, NO2), industrial safety monitors, breath analyzers, blood glucose meters, and environmental air-quality monitors. In a portable gas detector, the LMP91000 is placed between the 3-lead electrochemical sensor and a low-power MCU with an integrated ADC; the AFE handles biasing and current-to-voltage conversion while the MCU samples the voltage and applies temperature compensation. When designing with the LMP91000, ensure that the VDD decoupling capacitors are placed as close as possible to the analog and digital supply pins, and that the working, counter, and reference electrode traces are guarded to prevent leakage. The I2C SDA/SCL lines require pull-up resistors to VDD; consult the manufacturer's datasheet for the recommended pull-up value based on bus capacitance and clock speed. This page synthesizes distributor pricing, drop-in alternatives, and design notes not aggregated in any one manufacturer data sheet.
LTC1094CJ - 8-Ch 10-Bit Serial DAS | Analog Devices
Analog Devices LTC1094CJ is an 8-channel, 10-bit serial I/O data acquisition system in a 20-pin CERDIP package. The device combines a 10-bit switched-capacitor successive-approximation ADC core with software-configurable analog multiplexing, allowing a microcontroller or other serial host to acquire multiple analog channels through a compact mixed-signal interface. Its industrial temperature grade and through-hole construction suit instrumentation and embedded control systems where reliable PCB assembly and broad operating-temperature performance are important. A data acquisition system, or DAS, is an integrated mixed-signal semiconductor that combines analog multiplexing, conversion, and a digital control or serial interface. In the hierarchy of electronic components, the LTC1094CJ belongs to the ADC family, which forms part of the broader data-converter and signal-processing category. The 10-bit ADC provides 1,024 representable digital codes, making it appropriate for monitoring applications that require moderate measurement resolution rather than high-precision laboratory conversion. The key features of the LTC1094CJ include eight multiplexed input channels, 10-bit conversion resolution, serial I/O, and a selectable bipolar or unipolar input configuration. The switched-capacitor successive-approximation core allows the converter to combine compact implementation with practical acquisition performance. Because the multiplexer is software-configurable, a host controller can select among the available analog inputs and configure operating modes through the serial control interface. The LTC1094 family also includes 1-, 2-, 6-, and 8-channel configurations, while the LTC1094CJ specifically provides the 8-channel option. This distinction matters when comparing the CJ suffix with other family members. The CJ version is identified as an industrial-grade, 20-terminal, through-hole ceramic DIP rather than a surface-mount package. Its 20-CERDIP format supports conventional through-hole PCB assembly and is suitable for designs that favor robust mechanical attachment over compact board area. Typical uses include industrial process monitoring, transducer signal acquisition, laboratory measurement interfaces, environmental sensing, and embedded data-logging systems. In a multi-sensor installation, the eight-channel multiplexer can reduce the number of physical analog input connections needed by a microcontroller while retaining a common serial command and data path. The host system determines the channel sequence, acquisition timing, and interpretation of the resulting 10-bit values. A key design consideration is the analog front-end. Sensor outputs must remain within the selected bipolar or unipolar input range, and the source impedance seen by each muxed input can affect conversion accuracy and settling time. Layout should minimize trace lengths between sensors, protection components, and the LTC1094CJ while separating digital serial activity from sensitive analog nodes. Grounding, reference decoupling, and acquisition timing should be evaluated together rather than optimized independently. This product page combines the manufacturer product information, distributor identification, package details, and cross-reference findings into an engineering-focused description. It also identifies the verified drop-in alternative, documents replacement and selection questions, and highlights practical considerations for implementing an eight-channel serial data acquisition front end.
LTC1099CN#30369 - 8-Bit 2.5µs ADC w/ S/H | Analog Devices | DIP-20
The Analog Devices LTC1099CN#30369 is an 8-bit, 2.5 µs analog-to-digital converter (ADC) with an integrated sample-and-hold amplifier, housed in a 20-pin PDIP (N-20) through-hole package. It offers one input channel with a flash-style conversion architecture, supports full Nyquist-rate sampling, and is qualified for the commercial 0 °C to 70 °C operating range. The part is supplied in a 20-PDIP package with an input count of 1 and a flash converter topology per the manufacturer's product family specification. What is a flash ADC? A flash ADC is a parallel architecture where every possible quantization level is realized by a dedicated comparator bank feeding an encoder; conversion happens in a single step so latency is essentially one comparator delay, making flash ADCs the fastest ADC topology but resolution-limited by comparator count. Within the converter hierarchy, the LTC1099 sits between SAR (successive approximation) and full flash converters, using a sub-ranging / flash-front-end plus internal sample-and-hold to digitize high-bandwidth analog signals up to the full Nyquist rate. As a data-conversion IC, it belongs to the broader category of data acquisition > analog-to-digital converter > monolithic 8-bit ADC. Key features include a 2.5 µs typical conversion time (corresponding to 156 kHz 5V p-p input bandwidth), a built-in track-and-hold, microprocessor-compatible interface for direct connection to parallel-bus microcontrollers, single +5 V supply operation, and a flash-derived architecture. The integrated S/H allows the converter to handle fast-step inputs without requiring an external buffer, simplifying front-end design. The LTC1099 uses a sub-ranging flash architecture with internal reference generation and digital error correction. The integrated sample-and-hold sits at the analog front end and guarantees accurate acquisition of fast transient signals at the full Nyquist rate, which a discrete ADC + external amplifier combination often cannot match for input slew without careful layout. Typical applications include waveform digitizers, digital oscilloscope front-ends, video bandwidth digitizing up to 156 kHz, data-acquisition boards for industrial instrumentation, and process-control signal conditioning. It also serves in VCO/PLL feedback readback, ultrasound return-signal sampling, and any design requiring fast 8-bit throughput in a simple parallel microprocessor interface. When designing with the LTC1099, ensure clean analog and digital grounds (separated at the device pin) and place the supply bypass capacitor as close as possible to the VCC pin. The internal S/H drives input capacitance; source-impedance and bandwidth trade-offs should be evaluated when feeding the analog input directly from a sensor or filter. This page synthesizes distributor pricing, drop-in equivalents, and design notes not present in the bare manufacturer datasheet, including intent-specific FAQs and a comparison table for engineers migrating from earlier 8-bit ADCs.
LTC1283CJ - 10-Bit 8-Channel ADC | Analog Devices
Analog Devices LTC1283CJ is a 3 V data acquisition IC containing a serial-interface, successive-approximation analog-to-digital converter with 10-bit unipolar or 9-bit-plus-sign bipolar resolution and an 8-channel input multiplexer. The device is offered in a ceramic 20-pin DIP package and is specified for the commercial temperature range. A data acquisition system converts real-world analog voltages into digital values for measurement, control, or display. Within the ADC category, the LTC1283 integrates a successive-approximation converter, an analog input multiplexer, and an on-chip sample-and-hold circuit. Its serial interface reduces the number of signal connections required between the converter and a controller while preserving dedicated analog measurement capability. Key features include an 8-channel analog multiplexer that can be configured for single-ended inputs, differential inputs, or combinations of both. The converter supports 10-bit unipolar and 9-bit plus sign bipolar operating modes. LTCMOS switched-capacitor technology performs the conversion, while the integrated sample-and-hold circuit captures the input voltage before conversion. A 3 V supply and a 20-pin ceramic DIP package support compact through-hole instrumentation layouts. The multiplexer is the central architectural feature for multi-sensor systems. Instead of dedicating one converter to every input, it routes selected channels to the shared converter and sample-and-hold circuit. Differential operation can reduce the influence of common-mode voltage on measurements, while single-ended operation simplifies connections for sensors with one signal output and a shared reference. Serial output supports economical connection to a microcontroller or embedded controller. Typical uses include industrial process measurement, multichannel sensor acquisition, battery-powered instrumentation, and embedded control systems that need several analog inputs but only moderate conversion resolution. The LTC1283CJ is also appropriate for prototypes and legacy equipment requiring a through-hole ceramic DIP footprint, especially where board area is less important than straightforward assembly and serviceability. Design around the exact input ranges, acquisition timing, reference requirements, and serial protocol listed in the Analog Devices LTC1283 datasheet. Confirm signal source impedance, acquisition time, reference stability, grounding, and digital-interface levels before finalizing the analog front end. Use the manufacturer's pin-description table and application guidance when assigning tracks and guarding inputs. This page organizes the LTC1283CJ's converter architecture, multiplexing capabilities, package details, sourcing path, and engineering considerations into a practical selection reference. It also separates verified device facts from replacement and lifecycle decisions that require direct manufacturer confirmation.
LTC1409IG - 12-Bit 800ksps Sampling ADC | Analog Devices
Analog Devices LTC1409IG is a 12-bit, 800 ksps sampling analog-to-digital converter with a parallel interface in a 28-pin SSOP package. It supports true differential input, provides a 1 µs conversion time, and operates from ±5 V supplies while dissipating 80 mW. The converter is intended for precision signal acquisition, industrial control, instrumentation, communications, and data-processing systems requiring deterministic sampling without pipeline delay. A sampling ADC is a data-converter category that samples an analog input at a specified instant and converts it into a digital code. The LTC1409IG belongs to the successive-approximation-register family, where a sample-and-hold circuit captures the input before an internal 12-bit conversion completes. It includes a high-dynamic-range sample-and-hold stage and a precision internal reference, while also accepting an external reference when greater system-level control is required. Key characteristics include an 800 ksps maximum sampling rate, a 1 µs conversion time, and a ±2.5 V full-scale differential input range. The converter provides single-ended or differential signal handling, digital shutdown control, and selectable operating modes. Its specified maximum DC linearity and differential nonlinearity are ±1 LSB, while signal-chain performance reaches 72.5 dB SINAD and 86 dB THD at the Nyquist frequency. The architecture supports both internal and external reference operation. The internal reference has a stated temperature coefficient of 15 ppm/°C, providing a compact solution when a dedicated external reference would add cost or board area. Shutdown options include Nap, which reduces power dissipation to 4 mW, and Sleep, which reduces it to 10 µW, making the converter suitable for intermittently sampled acquisition systems. Typical applications include process-control loops, multichannel measurement systems, communications receivers, industrial instrumentation, waveform capture, and precision sensor acquisition. Its parallel data bus allows the converted word to be read directly by a microcontroller, DSP, FPGA, or other digital controller, making bus timing and signal-integrity layout important considerations. When designing a board around the LTC1409IG, preserve the specified dual-supply range and ensure adequate input settling before each conversion. Place input and reference components close to their associated pins, maintain short parallel-bus routes, and provide suitable decoupling. Confirm that the selected downstream logic voltage and acquisition timing support the converter's parallel interface and sampling requirements. This page combines manufacturer specifications, package information, verified source links, drop-in family references, and practical design guidance to support component selection, schematic planning, PCB layout, and replacement evaluation.
LTC1416CG - 14-Bit 400ksps Low-Power ADC | Analog Devices
Analog Devices LTC1416CG is a low-power, 14-bit, successive-approximation sampling ADC with a conversion time of 2.2 microseconds, a maximum sampling rate of 400 ksps, and a 28-pin SSOP package. The converter accepts a bipolar full-scale input range of ±2.5 V and operates from ±5 V supplies while drawing 70 mW. A sampling ADC is a data-converter category that uses a sample-and-hold circuit and successive-approximation conversion to translate an analog voltage into a digital code. The LTC1416 belongs to the ADC, data-converter, signal-processing, and semiconductor hierarchy. Its high dynamic-range sample-and-hold front end makes it suitable for precision instrumentation, industrial measurement, data acquisition, and control systems that require accurate conversion without a high-power switching architecture. The principal characteristics are 14-bit resolution, 400 ksps throughput, and 2.2 microsecond conversion time. The Analog Devices datasheet also identifies ±2 LSB maximum integral nonlinearity, ±1.5 LSB maximum differential nonlinearity, and operation from ±5 V supplies. Two digitally selectable shutdown modes help reduce power consumption when conversion activity is intermittent. The converter supports internal or external reference operation and includes a precision reference according to the manufacturer product information. The parallel-output architecture supports direct connection to digital control logic when the converter is mounted close to the processor or FPGA. A SAR ADC is useful when deterministic latency, moderate resolution, and modest conversion rates matter more than very high throughput. This combination of 14-bit resolution, 400 ksps sampling, selectable shutdown modes, and bipolar input range allows the LTC1416 to balance measurement resolution, throughput, power use, and implementation complexity. Typical uses include process-control loops, analog sensor acquisition, laboratory measurement instruments, industrial data-logging equipment, and embedded systems that sample slowly varying or moderately changing analog signals. The internal reference can simplify designs where an external precision reference would add cost and board area, while external-reference operation offers a path for shared references or calibration schemes. When laying out the circuit, place input, reference, and bypass connections to minimize pickup around the high-impedance analog input. Use the manufacturer pin-description table when assigning signals and observe the specified acquisition, conversion, and shutdown timing. Check the power-supply requirements and reference selection carefully because incorrect sequencing or bypassing can degrade accuracy even when the nominal sampling rate is suitable. This product overview consolidates the converter's resolution, throughput, input range, power characteristics, shutdown options, and package details into an engineering-oriented selection reference. It also distinguishes verified pin-compatible family alternatives from broader functional ADC choices, helping designers evaluate PCB reuse, interface compatibility, and measurement requirements before committing to a layout.
LTC1418CN#PBF - 14-bit 200ksps Low Power SAR ADC | Analog Devices
The Analog Devices LTC1418CN#PBF (originally Linear Technology) is a low power, 200 ksps, 14-bit successive-approximation analog-to-digital converter (SAR ADC) offered in a 28-pin PDIP through-hole package. Key headline parameters include a 200 ksps sampling rate, 14-bit resolution, 15 mW typical power dissipation from a single 5 V or ±5 V supply, and selectable 14-bit parallel or serial data output format. The on-board high-performance sample-and-hold, precision reference, and internal timing keep external component count to a minimum, which simplifies board layout and reduces BOM cost. What is a SAR ADC? A successive-approximation analog-to-digital converter is a type of ADC that performs a binary search across an internal DAC to converge on the input voltage one bit per cycle. Within the broader hierarchy, this places SAR ADCs alongside pipelined, sigma-delta, and flash converters inside the data acquisition IC family. SAR converters deliver an excellent balance of speed, accuracy, and low power, which is why they remain a workhorse for industrial process control, instrumentation, and multiplexed data-acquisition front ends. Key features of the LTC1418CN#PBF include a built-in track-and-hold amplifier that eliminates the need for an external SHA, a typical differential non-linearity (DNL) of ±0.5 LSB, and bipolar/unipolar input capability when operated from ±5 V. Power-down mode reduces dissipation for battery-powered applications, and the wide analog input range (0 V to 5 V single-ended, ±5 V true bipolar) gives designers flexibility when digitizing transducer or sensor signals. Architecturally, the LTC1418 uses a charge-redistribution DAC array combined with a precision buried-Zener reference and auto-calibrated switch-capacitor front end. At 200 ksps, it sustains full 14-bit performance without missing codes, and the serial/parallel interface allows the same silicon to drop into either high-pin-count microcontroller buses or low-pin-count SPI controllers. Typical applications include industrial process-control data acquisition boards, portable or battery-powered instrumentation, multiplexed sensor read-back, and digital signal processing front ends. The 5 V single-supply capability also makes it suitable for legacy 5 V-only embedded designs. Designers should note that the LTC1418 is in the process of being discontinued; an SSOP-28 replacement (LTC1418CG#PBF) exists but is NOT pin-to-pin compatible with the DIP-28. Plan PCB rework or substitute silicon if the DIP-28 supply runs out. This page synthesizes Analog Devices datasheet data, distributor stock and pricing from DigiKey, and practical design considerations not found on manufacturer product pages.
LTC1605-1CN#PBF - 16-Bit, 100ksps SAR ADC, 0-4V Input, 28-PDIP | Analog Devices
The Analog Devices LTC1605-1CN#PBF is a 16-bit, 100ksps successive-approximation analog-to-digital converter that operates from a single 5V supply, drawing only 55mW (typical) and housed in a 28-pin PDIP through-hole package. It integrates a sample-and-hold amplifier, a precision internal reference, a switched-capacitor 16-bit SAR ADC core, and a trimmed internal clock, providing a complete data-acquisition solution in a single IC. A successive-approximation register (SAR) ADC is a type of analog-to-digital converter that performs a binary search across the input voltage using an internal DAC and comparator; SAR ADCs are valued for low latency, deterministic conversion time, and excellent DC accuracy with no pipeline delay, making them well-suited for multiplexed data acquisition, industrial process control, and precision instrumentation where a single-channel, low-noise conversion is required. Key features include a 0V to 4V true-differential analog input range (industry-standard unipolar), ±2.0 LSB maximum integral nonlinearity (INL), guaranteed 16-bit no-missing-codes over temperature, and a flexible parallel data output interface (16-bit wide or two-byte) that connects directly to microprocessors, DSPs, and FIFOs. The internal 2.5V reference is trimmed for low drift; an external reference may be applied for higher absolute accuracy over temperature. A CONVST input and BUSY (EOC) output simplify handshaking with external logic. Architecturally, the device uses a charge-redistribution switched-capacitor DAC paired with a low-noise comparator and an SAR control engine; the input sample-and-hold acquires the signal on the rising edge of CONVST and the conversion completes in 8µs, after which data is presented on the parallel port with BUSY going low. Single 5V operation eliminates the negative supply required by many legacy bipolar ADCs, simplifying board power design. Typical applications include industrial process control and multi-channel data-acquisition front ends (paired with an external MUX), precision weighing scales and load-cell digitizers, bench-top and laboratory instrumentation, medical diagnostic equipment, and high-accuracy temperature or strain-gauge measurement systems. The LTC1605-1CN#PBF's commercial 0°C to 70°C operating range suits laboratory, factory-floor, and bench environments. When designing with this part, place 10µF (or larger) bypass capacitors close to the AVdd and DVdd pins and respect a star-ground topology between the analog input ground return and digital ground to avoid code-dependent noise coupling into the reference. The 28-PDIP package is convenient for prototype boards, sockets, and through-hole assembly but is not recommended for new high-density surface-mount designs - consider the SSOP-28 (LTC1605-1CG#PBF) for SMT layouts. This page synthesizes distributor pricing, true drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
LTC1605-1IN#PBF - 16-Bit 100ksps SAR ADC | Analog Devices
The Analog Devices LTC1605-1IN#PBF is a 16-bit, 100 ksps successive-approximation analog-to-digital converter (SAR ADC) in a 28-pin PDIP (N) through-hole package. According to the Analog Devices datasheet, the device draws only 55 mW (typical) from a single 5 V supply, includes a sample-and-hold front-end, a precision internal reference, and a trimmed internal clock, providing a complete 16-bit data-acquisition solution in one IC. The unipolar input range is 0 V to 4 V (LTC1605-1 variant; LTC1605-2 variant covers ±4 V bipolar). The converter features a microprocessor-compatible 16-bit or two-byte parallel output port for direct connection to data buses and DSP/microcontroller interfaces. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and an internal capacitive DAC to resolve the input voltage one bit at a time per clock cycle. SAR ADCs occupy the middle ground between delta-sigma (high resolution, low speed) and flash (very high speed, low resolution) architectures. They are the dominant choice for 12-16 bit industrial data-acquisition systems running at 10 ksps to 1 Msps, particularly when deterministic latency and a parallel/serial output are required. The LTC1605-1IN#PBF inherits the lineage of the industry-standard LTC1605 family, all of which share the same 28-pin pinout and timing characteristics for drop-in upgrades. Key features include 16-bit no-missing-codes performance, 86 dB typical signal-to-noise ratio, a 100 ksps sampling rate, and an external reference option for systems that require better temperature drift than the internal 2.5 V reference provides. The 28-pin PDIP package is through-hole, simplifying prototyping and field replacement for industrial instrumentation. Typical applications include industrial process control, multi-channel data-acquisition boards, weigh-scale and load-cell digitizers, panel meters, instrumentation front-ends, and bench-top test-and-measurement equipment. The 5 V single-supply operation and parallel data port allow direct connection to legacy parallel-signal processors and modern microcontrollers/DSPs without additional level translation. When designing with the LTC1605-1IN#PBF, ensure the analog input is buffered if the source impedance exceeds the datasheet-specified value, and decouple VDD with a 10 µF tantalum in parallel with a 0.1 µF ceramic placed within 1 cm of the supply pin. The #PBF suffix indicates lead-free (Pb-free) and RoHS-compliant construction, qualifying the part for modern and export-controlled designs.
LTC1605-2CN#PBF - 16-Bit 100ksps ±4V Bipolar SAR ADC | ADI
The Analog Devices LTC1605-2CN#PBF is a 16-bit, 100 ksps successive-approximation analog-to-digital converter that operates from a single 5 V supply and dissipates only 55 mW typical. Housed in a 28-pin PDIP through-hole package, the device integrates a sample-and-hold front end, a precision internal reference, a switched-capacitor SAR core, and a trimmed internal clock, enabling a complete 16-bit conversion solution in one IC. The -2 suffix denotes a bipolar ±4 V analog input range, which makes the part well suited to industrial signal acquisition that uses a true bipolar front end. A successive-approximation register (SAR) ADC is a type of data converter that performs one binary bit decision per conversion cycle, using an internal comparator, DAC, and successive-approximation logic. SAR converters sit in the broader ADC hierarchy between delta-sigma (high resolution, low speed) and flash (high speed, low resolution), and are favored for multiplexed data-acquisition systems because they perform a complete, deterministic conversion in N clock cycles with no pipeline latency. The LTC1605-2 exemplifies this architecture with its single-shot, software-controlled conversion cycle. Key specifications of the LTC1605-2 include 16-bit resolution with no missing codes, ±4 V bipolar input range, 100 ksps sampling rate, parallel data interface, ±2.5 LSB INL typical, and integrated reference. The internal clock and the integrated reference eliminate external ADC support components, simplifying the analog front end. Because the part is single-supply 5 V with a true bipolar differential input stage, designers can connect the output of a ±4 V instrumentation amplifier directly to the ADC inputs with minimal signal conditioning. The architecture uses a charge-redistribution switched-capacitor DAC inside the SAR loop, a technique that yields excellent DC linearity for instrumentation workloads. The integrated 4.096 V reference is trimmed at the factory, so the converter achieves specified noise and INL performance without external reference components, although a 2.2 µF bypass close to the REF pin is required for full accuracy. Typical applications include process-control analog input modules, industrial PLC analog front ends, precision data-acquisition boards, multichannel instrumentation front ends with bipolar signals, and laboratory instrumentation that requires 16-bit accuracy without high-speed throughput. Designers in these segments value the deterministic conversion latency and the simple parallel read interface. When designing the PCB, place the 2.2 µF REF bypass capacitor and the 10 µF VCC decoupling capacitor as close to the IC pins as possible. Use a ground plane under the analog section and keep digital return currents out of the analog ground path. Use the S/H (sample-and-hold) pin or the CS and RD signals to start conversions; the LTC1605-2 does not auto-run. This page synthesizes distributor pricing, pin-compatible ADI alternatives in the same 28-PDIP footprint, and practical layout notes beyond the manufacturer datasheet, helping engineers evaluate LTC1605-2CN#PBF for drop-in upgrades, second sources, and bipolar-input acquisition channels.
LTC1605ACN - 16-Bit 100ksps ADC with Bipolar ±10V Input | Analog Devices
The Analog Devices LTC1605ACN is a 16-bit, 100 ksps sampling analog-to-digital converter (ADC) housed in a 28-pin PDIP through-hole package. It draws only 55 mW (typical) from a single +5 V supply, accepts a bipolar ±10 V input range, and features an internal precision reference with trimmed internal clock for easy standalone operation. An analog-to-digital converter (ADC) is a data-converter integrated circuit that converts a continuous analog voltage into a discrete digital code, occupying a key position in the signal-chain hierarchy: transducer -> analog front end / signal conditioning -> ADC -> digital processor. Successive-approximation register (SAR) ADCs in particular combine a sample-and-hold, precision reference, switched-capacitor DAC and SAR logic to deliver one conversion per clock, with low latency and deterministic behavior well suited to multiplexed data acquisition and industrial instrumentation. Key features of the LTC1605ACN include ±2.0 LSB (max) INL over temperature, guaranteed 16-bit no missing codes, a microprocessor-compatible 16-bit or two-byte parallel output port, and the ability to be driven by an external reference when higher absolute accuracy is required across temperature. Synchronous sampling and a wide input range let it directly digitize industrial ±10 V signals without external scaling amplifiers. The device uses a precision bandgap reference and trimmed internal clock, simplifying the analog front end to a simple RC input network plus an external reference option for temperature-stable accuracy. Successive-approximation architecture yields deterministic latency and excellent DC linearity for instrumentation applications. Typical applications include industrial process control data acquisition boards, multichannel multiplexed data loggers, instrumentation and measurement front ends, and legacy factory automation I/O subsystems. The bipolar ±10 V range lets it connect directly to legacy industrial sensors and 4-20 mA loop resistors. Design with the device by ensuring the analog input pin sees a low-impedance buffer or RC network matching the ADC's switched-capacitor front end, and by tying REFCOMP to a 10 µF bypass capacitor near the pin to minimize reference noise. Latency is one conversion clock, simplifying timing analysis for sequential multiplexer scans.
LTC1605AIN - 16-Bit 100ksps Sampling ADC ±10V | Analog Devices
The Analog Devices LTC1605AIN is a 16-bit, 100ksps sampling analog-to-digital converter that draws only 55 mW (typical) from a single 5V supply, packaged in a 28-pin SSOP. It integrates a sample-and-hold amplifier, a precision internal reference, a switched-capacitor successive-approximation ADC core, and a trimmed internal clock, providing a complete bipolar-input ADC solution. The bipolar analog input range is ±10V, suitable for industrial process control, instrumentation, and signal-isolation data-acquisition front-ends. An ADC (analog-to-digital converter) is a semiconductor device that converts a continuous analog voltage or current into a discrete digital code; sampling ADCs additionally include a sample-and-hold front-end that captures and freezes the input at a precise moment so that the conversion can proceed without aliasing. In the broader component hierarchy, the LTC1605AIN is a successive-approximation-register (SAR) ADC, a sub-category of data converters that sits under interface/ADC ICs in mixed-signal systems. SAR ADCs are favored for their deterministic latency, low power consumption, and excellent DC accuracy compared with delta-sigma or pipeline architectures, making them ideal for multiplexed data-acquisition systems. Key features include ±2.0 LSB maximum integral nonlinearity, guaranteed no missing codes at 16 bits, ±10V true bipolar input range from a single 5V supply, and a 55 mW typical power dissipation. The part is specified over the commercial 0°C to 70°C operating range, with the 'N' suffix indicating an SSOP-28 package and 'I' indicating the commercial temperature grade. The internal reference and trimmed clock eliminate the need for external components, simplifying board layout and reducing BOM cost. Architecturally, the LTC1605AIN combines a fast bipolar-input track-and-hold with a charge-redistribution SAR core and an on-chip reference. The trimmed internal clock removes the requirement for an external timing source, and the parallel output interface delivers conversion results in a single read cycle. The 100ksps throughput makes it well suited to multiplexed multi-channel systems where each channel can still be sampled at several kHz. Typical applications include industrial process control and instrumentation, multiplexed data-acquisition systems, signal-isolation front-ends, and portable or battery-powered test equipment. The ±10V bipolar input makes it a natural drop-in for legacy 5V-only signal chains migrating from older bipolar ADC designs. When designing with this part, allocate adequate board area for the analog input anti-alias filter and bypass the supply pin with a 10 µF tantalum plus 0.1 µF ceramic capacitor within 10 mm of the device. The analog and digital grounds should be tied at a single star point beneath the IC to minimize noise coupling from the parallel output bus into the sensitive input front-end. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the Site MPN list, and practical design notes not found in the manufacturer datasheet, enabling faster BOM selection for engineers maintaining or designing-in the LTC1605AIN.