ADC/DAC
製品 (2518)
IDTADC1210S080HN-C1 - 12-Bit 80MSPS ADC, CMOS/LVDS DDR | Renesas
The Renesas (formerly IDT) IDTADC1210S080HN-C1 is a single-channel 12-bit pipelined analog-to-digital converter (ADC) that samples at 80 MSPS with selectable CMOS or LVDS DDR digital outputs, housed in a 40-pin HVQFN (6x6 mm) package. It operates from a 3.0 V analog supply (VDDA) and a 1.8 V digital supply (VDDO), drawing power appropriate for high-speed IF/baseband signal acquisition. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts a continuous-time analog voltage on its input pin into a discrete digital code at its output. It belongs to the data converter (ADC/DAC) product family within data acquisition ICs, which sit in the broader mixed-signal and signal-chain hierarchy. Pipelined ADCs like the ADC1210S series use a multi-stage architecture with per-stage flash sub-ADCs and digital error correction, achieving a balance of high sampling rate, moderate resolution (10-14 bits), and low power consumption per MSPS. Key specifications include 12-bit native resolution, 80 MSPS maximum sampling rate, support for both single-ended CMOS and differential LVDS DDR output modes, and a pipelined architecture with a typical latency of several clock cycles. The part is offered in a 40-pin HVQFN package (6x6 mm body) with an exposed thermal pad for low thermal resistance. The ADC1210S series shares a common silicon platform across 65/80/105/125 MSPS speed grades, allowing engineers to scale sampling rate on the same PCB footprint. The differential LVDS DDR mode delivers data on both clock edges, halving the per-pin output rate and easing FPGA/CPLD capture at 80 MSPS and beyond, while the CMOS mode simplifies low-cost MCU or DSP interfacing at slower rates. Typical applications include communications IF basestats, ultrasound imaging receivers, portable test and measurement instrumentation, radar signal processing front ends, and medical imaging data acquisition cards. The wide input common-mode support and internal reference simplify board design in space-constrained applications. When designing with this device, allocate a solid ground plane beneath the package and bond the exposed pad to analog ground. Decouple VDDA with a 1 uF plus 10 nF ceramic pair close to the pin, and keep the analog input trace short and impedance-controlled (typically 50 ohm or 75 ohm terminated) to preserve ENOB at high input frequencies. This page synthesizes distributor pricing, datasheet pinout, drop-in alternative listings across the ADC1210S speed grades, and practical design notes not found on a single distributor product page.
IDTADC1210S080HN-C18 - 12-bit 80MSPS Pipeline ADC | Renesas
The Renesas IDTADC1210S080HN-C18 is a 12-bit resolution, 80 MSPS (mega-samples per second) pipelined analog-to-digital converter (ADC) housed in a 40-pin VFQFPN (Very-thin Fine-pitch Quad Flat Package, No-leads) with exposed thermal pad. The converter integrates a single differential/single-ended analog input channel, on-chip sample-and-hold, and a pipelined architecture that delivers 12-bit linearity at full speed while keeping latency low. The part is the original IDT (Integrated Device Technology) design now sold under the Renesas umbrella after the 2019 IDT acquisition. What is a pipelined ADC? A pipelined analog-to-digital converter is a high-speed Nyquist ADC architecture that breaks the conversion into multiple low-resolution stages, each handling a portion of the input range before passing the residue to the next stage. Pipelined ADCs sit at the top of the data converter hierarchy: ADC -> Nyquist ADC -> pipelined ADC -> high-speed data acquisition IC -> signal chain IC -> semiconductor. They are the dominant choice for 10-200 MSPS applications because they deliver excellent speed-linearity-power trade-offs versus successive-approximation (SAR) and flash architectures. Key features include 80 MSPS maximum sampling rate, single-channel differential or single-ended input, an LVDS-parallel or parallel CMOS digital output interface (per the datasheet), selectable external or internal voltage reference, and 2.85V-3.4V analog supply. The pipelined architecture provides excellent spurious-free dynamic range (SFDR) and signal-to-noise ratio (SNR) suitable for communications, imaging, and instrumentation front-ends. Power dissipation scales roughly linearly with sample rate, allowing the device to back off power in lower-speed applications. In terms of design depth, the ADC1210S family uses multi-stage switched-capacitor residue amplification and a digital error-correction logic block to suppress comparator offset errors, allowing only the first stage to require laser trimming. The reference can be driven externally for best DC accuracy or left internal to save board area. Digital outputs can be configured for LVDS or parallel CMOS depending on the system noise and board-routing requirements. Typical applications include medical ultrasound beamformers, communications IF digitizers, CCD/CIS imaging digitizers, portable test and measurement instruments, and high-speed data acquisition cards. The wide input common-mode range and flexible reference make it easy to interface with a wide variety of front-end amplifiers and anti-alias filters. When designing with this part, ensure the analog input is bandwidth-limited with a properly designed anti-alias filter and that the reference decoupling is tight to ground. The exposed thermal pad must be soldered to a sufficiently large ground copper pour to keep junction temperature within the -40C to +85C operating range at full 80 MSPS throughput. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical layout notes not found in the manufacturer datasheet alone.
IDTADC1210S105HN-C18 - 12-bit 105MSPS ADC, 40-VFQFPN | IDT/Renesas
The Renesas (formerly IDT) IDTADC1210S105HN-C18 is a single-channel, 12-bit pipelined Analog-to-Digital Converter (ADC) optimized for high dynamic performance and low power at sample rates up to 125 Msps, with this speed grade specified at 105 Msps. Housed in a 40-pin VFQFPN exposed-pad package, the converter achieves 70 dBFS SNR and 86 dBc SFDR with a 600 MHz analog input bandwidth. An Analog-to-Digital Converter (ADC) is a mixed-signal integrated circuit that converts real-world analog signals - typically voltage or current from sensors, antennas, or audio sources - into discrete digital codes that a microcontroller, DSP, or FPGA can process. ADCs sit within the broader data-acquisition signal chain: sensor -> signal conditioning -> ADC -> digital processor. High-speed pipelined ADCs like the ADC1210S use a multi-stage switched-capacitor architecture to balance conversion speed, resolution, and power dissipation. Key features of this device include a flexible analog input range from 1 Vp-p to 2 Vp-p, selectable CMOS or LVDS DDR digital outputs, a serial peripheral interface (SPI) for configuration, an integrated duty-cycle stabilizer, and fast Out-of-Range (OTR) detection. Power consumption is 430 mW at 80 Msps from a single 3 V analog supply, with the 1.8 V digital supply independently adjustable for low-power digital interface modes. The device supports offset binary, two's complement, and gray code output formats. The ADC1210S series uses a 12-bit pipelined core with a sample-and-hold front end that includes on-die ESD protection and matched input parasitics. The clock input is divided by 2 internally to relax source jitter requirements, while the duty-cycle stabilizer maintains sample-to-sample timing accuracy even with non-50% clock duty cycles. Output data is delivered as either parallel CMOS words or LVDS DDR pairs depending on system EMI and trace-length requirements. Typical applications include wireless base-station receive IF digitizers, medical ultrasound beamformers, portable test-and-measurement instrumentation, software-defined radio front ends, and high-speed imaging digitizers. The wide 600 MHz input bandwidth makes the part particularly suited for undersampling IF signals in communications receivers where the ADC samples below the carrier frequency. Designers should note that the exposed pad must be soldered to a continuous ground plane to achieve specified thermal performance (theta-JA depends on PCB copper area) and that the analog and digital supply domains require separate decoupling networks. The SPI register map controls output format, input full-scale range, and test patterns - consult the Renesas datasheet before committing to a PCB layout. This page consolidates distributor pricing, pin-compatible drop-in alternatives, and practical design notes that go beyond the bare datasheet - giving engineers a faster path from evaluation to production.
IDTADC1210S125HN-C1 - 12-bit 125 MSPS Single ADC | Renesas
The Renesas (formerly IDT) IDTADC1210S125HN-C1 is a single-channel, 12-bit pipelined analog-to-digital converter (ADC) sampling up to 125 MSPS, housed in a 40-pin HVQFN exposed-pad package (6 mm x 6 mm). It is specified for low power consumption and high dynamic performance, with CMOS or LVDS DDR digital output options selected via the OVS pin. The -C1 suffix indicates the commercial temperature grade (0 C to +70 C). A pipelined ADC is a high-speed Nyquist-rate data converter that resolves one or more bits per stage using a switched-capacitor gain-DAC and residue amplifier chain. The pipelined architecture is the workhorse of communications infrastructure, industrial imaging, and test-and-measurement digitizers because it combines hundreds of MHz of analog input bandwidth with sub-watt power consumption, placing it within the hierarchy of successive-approximation (SAR) and flash converters as the preferred solution for sampling rates between ~10 MSPS and ~500 MSPS. Key features of the IDTADC1210S125HN-C1 include a 12-bit resolution, 125 MSPS maximum sampling rate, a single analog input channel, an internal reference (with option to overdrive), CMOS/LVDS DDR selectable output mode, and programmable full-scale input range. The 40-pin HVQFN package with exposed thermal pad provides a low-thermal-resistance path for high-density PCB designs, and the integrated input sample-and-hold simplifies front-end matching. Typical applications span communications baseband and IF digitization, industrial test-and-measurement equipment, medical imaging front ends, radar and lidar signal processing, and high-speed data acquisition systems. The wide input bandwidth and flexible digital interface make the part well suited for direct-IF sampling in software-defined radio. When designing with the IDTADC1210S125HN-C1, ensure the input common-mode voltage is set within the part's specified range and that the analog input is bandwidth-limited to less than half the sampling rate to avoid aliasing. Use a low-jitter clock source because aperture-jitter directly degrades SNR at high input frequencies. This page synthesizes distributor pricing, drop-in alternatives from the ADC1210S family, and practical design notes not collated in the manufacturer datasheet.
IDTADC1210S125HN-C18 - 12-bit 125 MSPS ADC, 40-VFQFPN | Renesas
The Renesas IDTADC1210S125HN-C18 is a single-channel 12-bit pipelined analog-to-digital converter (ADC) sampling at 125 MSPS, housed in a 40-pin VFQFPN (6x6 mm) package. It supports CMOS or LVDS DDR digital outputs, runs from a 3 V analog supply and a 1.8 V digital supply, and delivers 12-bit resolution with one input channel operating in pipelined architecture. A pipelined ADC is a high-speed successive-approximation architecture that uses multiple low-resolution stages to digitize an analog signal at sample rates well beyond what SAR (successive-approximation register) converters can achieve. Pipelined ADCs sit in the data-converter hierarchy between SAR (low-power, high-resolution) and flash (highest speed, lowest resolution) converters, enabling telecommunications, imaging, and instrumentation front ends. The 12-bit 125 MSPS class targets cost-sensitive wideband designs where 10-12 bits of dynamic range suffice. Key features of the IDTADC1210S125HN-C18 include a low-noise track-and-hold front end, selectable power-saving mode, single 3 V analog supply operation, separate 1.8 V digital supply for low-power LVDS/CMOS outputs, and 40-pin VFQFPN packaging with a thermal pad. Operating range covers -40 °C to +85 °C ambient. The part supports selectable CMOS or LVDS DDR digital output modes for flexible interface to FPGAs and DSPs. At 125 MSPS the converter's internal pipeline clock multiplies up from an external reference, and the track-and-hold front end is bandwidth-limited to slightly above Nyquist to balance aliasing rejection with passband flatness. The -C18 speed grade designation indicates the 125 MSPS bin with the 1.8 V digital-output supply configuration. The exposed thermal pad on the 40-VFQFPN package must be soldered to a ground copper pour to achieve the rated thermal resistance. Typical applications include basestation receive paths, medical ultrasound beamforming front ends, low-cost digital oscilloscopes, and intermediate-frequency (IF) sampling in software-defined radio (SDR). The wide input bandwidth also suits high-speed data-acquisition cards and CCD/CIS imaging front ends. When integrating this ADC, provide well-decoupled analog and digital supplies and route LVDS data pairs with controlled 100 ohm differential impedance to preserve signal integrity.
IDTADC1212D065HN-C18 - 12-bit 65MSPS Dual ADC | Renesas/IDT
The Renesas (formerly IDT, Integrated Device Technology) IDTADC1212D065HN-C18 is a 12-bit, dual-channel, 65 MSPS pipelined analog-to-digital converter (ADC) housed in a 64-pin VFQFPN exposed-pad package (9 mm x 9 mm). Each of the two ADC channels converts a single analog input through a fully differential pipeline architecture, designed for synchronous sampling in multi-channel systems where precise channel-to-channel timing is required. The -C18 suffix denotes tape-and-reel packaging for high-volume assembly. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that quantizes a continuous analog voltage into a discrete digital code. A pipelined ADC achieves high sample rates by interleaving multiple low-resolution pipeline stages, with each stage resolving part of the conversion before handing the residue to the next stage. The pipelined ADC category sits within the broader data-converter hierarchy: ADC -> data converter -> mixed-signal IC -> signal chain -> data acquisition subsystem, and is the dominant architecture for sample rates between 1 MSPS and 500 MSPS. Key features of the IDTADC1212D065HN-C18 include 12-bit native resolution, 65 MSPS maximum sampling rate, dual simultaneous-sampling channels, low-voltage differential signaling (LVDS) compatible digital outputs, and an internal reference. The exposed thermal pad on the VFQFPN-64 package provides a low thermal resistance path for dissipating converter power, critical when operating at full sample rate with both channels active. The pipelined architecture, combined with on-chip sample-and-hold and reference buffer circuitry, allows the part to deliver excellent dynamic performance for IF-sampling and baseband applications. Designers typically pair the device with a low-jitter differential ADC driver such as the ADA4927 or THS4509 to preserve the converter's SNR and SFDR specifications. Typical applications include medical imaging receivers (ultrasound beamformers), multi-channel digital oscilloscopes, software-defined radio (SDR) baseband digitizers, communications IF receivers, and industrial test instrumentation. The dual-channel architecture is especially attractive in phased-array systems where two channels represent the minimum IQ demodulator pair. When designing with this ADC, prioritize clock distribution: sub-50 fs RMS aperture jitter is generally required to preserve 12-bit SNR at 65 MSPS IF inputs. Use a differential encoder or transformer-coupled clock to avoid coupling digital noise into the sensitive analog front-end through a shared ground bounce path. This page synthesizes distributor pricing, datasheet references, drop-in alternatives from the same Renesas/IDT ADC12xx family, and practical design notes not found in the manufacturer datasheet alone.
IDTADC1212D080HN-C1 - Dual 12-bit 80MSPS ADC, 64-VFQFPN | Renesas
The Renesas IDTADC1212D080HN-C1 is a dual-channel 12-bit pipelined analog-to-digital converter sampling at 80 MSPS, packaged in a 64-pin VFQFPN (9x9 mm). Two independent ADC channels share a common reference and clock, enabling synchronous I/Q sampling for communications, instrumentation, and imaging front ends. The device supports CMOS digital outputs with DDR/SDR modes per channel selection. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous-time analog waveforms at a fixed rate and produces a quantized digital code proportional to the input voltage. Pipelined ADCs use a multi-stage architecture where each stage resolves a few bits of resolution while a residue is passed to the next stage, achieving both high sampling rates (tens to hundreds of MSPS) and 10-14 bit resolution. In the broader taxonomy, the IDTADC1212D080HN-C1 sits within: ADC -> data converter -> data acquisition IC -> mixed-signal IC -> semiconductor. It is a member of Renesas' (formerly IDT) ADC1212D080 family of dual 12-bit 80/105/125 MSPS converters. Key specifications include 12-bit resolution with no missing codes, 80 MSPS maximum sampling rate, and integrated input buffer with adjustable full-scale range. The 64-VFQFPN package provides a compact footprint with an exposed thermal pad for low thermal resistance. Power consumption is typically below 600 mW at 80 MSPS from a single 1.8V analog and 1.8V/3.3V digital supply, enabling use in thermally constrained designs. Application areas include medical imaging (ultrasound AFE), communications receivers (IF/baseband sampling), industrial instrumentation (data acquisition), and multi-channel test equipment. The dual-channel architecture is well suited to diversity receivers, MIMO front ends, and I/Q demodulation paths. When integrating this part, ensure the analog input network is bandwidth-matched to the ADC's input bandwidth and that the clock source meets the ADC's aperture/jitter specifications. Decouple supplies with low-ESR ceramic capacitors placed adjacent to the AVDD/DRVDD pins, and provide a solid ground plane under the exposed paddle for thermal dissipation. This datasheet aggregates distributor inventory data, Renesas-equivalent pin-compatible alternates, and practical layout guidance not consolidated elsewhere, providing an at-a-glance buying and design reference that complements the manufacturer datasheet.
IDTADC1212D080HN-C18 - 12-bit 80MSPS Dual ADC | Renesas
The Renesas IDTADC1212D080HN-C18 is a 12-bit resolution, dual-channel pipelined analog-to-digital converter (ADC) sampling at 80 MSPS per channel, housed in a 64-pin VFQFPN (9x9 mm) exposed-pad package. Originally branded under IDT (Integrated Device Technology), this part belongs to the ADC1212D family of high-speed CMOS pipeline ADCs optimized for multi-channel data-acquisition systems where footprint density and conversion rate matter equally. The integrated dual-channel architecture lets one silicon die replace two discrete ADC ICs, simplifying board layout while halving FPGA/MCU I/O pin counts for sample-data interfaces. What is a pipelined ADC? A pipelined analog-to-digital converter is a high-speed ADC architecture that processes samples through multiple cascaded low-resolution stages, each stage resolving a few bits and feeding a residue to the next. Unlike successive-approximation (SAR) ADCs that need one conversion per bit, pipelined ADCs achieve much higher sample rates (tens to hundreds of MSPS) at modest power, making them the dominant architecture for communications, imaging, and instrumentation. Within the broader taxonomy: ADC -> data converter -> mixed-signal IC -> semiconductor. Key specifications include 12-bit resolution with ENOB typically near 10-11 bits at Nyquist, dual analog inputs with independent sample-and-hold stages, CMOS-compatible digital outputs, and LVDS/CMOS selectable output modes depending on family variant. The 64-VFQFPN 9x9 mm exposed-pad package provides a thermal resistance low enough to dissipate the typical 250-400 mW per channel without external heatsinking, while the exposed pad enables direct PCB top-layer ground pour soldering. In circuit topology, the ADC1212D typically accepts differential analog inputs centered on a common-mode voltage (often 0.9V to 1.1V), driven by a high-bandwidth ADC driver op-amp such as the THS4631 or ADA4932. The clock input accepts LVCMOS/LVDS-compatible differential clocks, and a stable low-jitter clock source (such as a dedicated PLL or crystal oscillator) is required to keep aperture-delay variation low. Typical applications include multi-channel digital oscilloscopes, medical ultrasound beamforming front-ends, software-defined radio (SDR) baseband digitizers, and industrial non-destructive-testing imaging arrays. The dual-channel architecture also makes it attractive for I/Q demodulation chains in radar and Wi-Fi front-ends where matched-channel performance is critical. When designing in this converter, ensure the analog input common-mode voltage matches the ADC's internal reference, place the ADC driver op-amp within 100 mils of the analog input pins, and flood the package exposed pad with a continuous ground plane to meet the thermal dissipation budget. This page synthesizes distributor pricing, drop-in compatible same-package variants from the Renesas/IDT ADC1212D family, and practical design notes not consolidated in any single manufacturer datasheet.
IDTADC1212D105HN-C1 - Dual 12-bit 105MSPS ADC | Renesas | 64-VFQFPN
The Renesas IDTADC1212D105HN-C1 is a dual 12-bit, 105 MSPS pipelined analog-to-digital converter housed in a 64-pin VFQFPN (9x9 mm) exposed-pad package. It provides two simultaneous 12-bit conversion channels at up to 105 MSPS each, with selectable CMOS or LVDS DDR digital outputs. The -C1 suffix designates the commercial temperature grade, making the part suited to lab, instrumentation, and general-purpose industrial systems. An analog-to-digital converter (ADC) is a data-acquisition component that translates continuous analog signals into discrete digital codes for downstream DSP, FPGA, or processor consumption. Pipeline ADCs like the ADC1212D use a multi-stage architecture with per-stage sample-and-hold and residue amplification, achieving high sampling rates with low latency at moderate resolution. The 12-bit class sits between 10-bit general-purpose converters and 14-16 bit precision converters, serving communications, imaging, and test-equipment applications where moderate dynamic range is acceptable. Key features of the IDTADC1212D105HN-C1 include dual 12-bit conversion channels at 105 MSPS, integrated input buffer and sample-and-hold, selectable CMOS or LVDS DDR output interfaces, and a wide input common-mode range. The pipelined architecture provides consistent latency from sample to output, simplifying synchronization in multi-channel systems. Power consumption is held modest through the use of CMOS output stages. Typical applications include communications base-station receive paths, medical imaging front-ends, radar and sonar signal processing, industrial inspection cameras, and general-purpose data-acquisition cards. The exposed-pad package ensures a low thermal resistance, enabling sustained high sampling rates without thermal throttling in enclosed chassis. When designing with this device, ensure the exposed pad is soldered to a continuous ground plane for thermal dissipation and ground return. Use differential clock inputs to minimize jitter; LVDS DDR outputs require a 100 ohm termination at the receiver. The internal reference may be bypassed for precision applications.
IDTADC1212D105HN-C18 - Dual 12-bit 105 MSPS ADC | IDT/Renesas
The Renesas (formerly IDT Integrated Device Technology) IDTADC1212D105HN-C18 is a dual 12-bit pipelined analog-to-digital converter (ADC) sampling at 105 megasamples per second (MSPS) per channel, housed in a 64-pin VFQFPN (9x9 mm) package. Each of the two ADC channels delivers 12-bit resolution with a bipolar analog input range, supporting a single 1.8 V analog supply rail and LVDS-compatible digital outputs for low-EMI multi-channel data acquisition systems. A pipelined ADC is a multi-stage converter architecture that distributes the conversion task across cascaded low-resolution stages, each of which samples-and-hold the residue for the next stage. The pipelined approach allows high sampling rates (here 105 MSPS per channel, 210 MSPS interleaved) while consuming low power per conversion, making this architecture the workhorse of communications, medical imaging, instrumentation and digital oscilloscope front-ends. By placing two ADCs in one die, the device also offers simultaneous-sampling operation for I/Q demodulation and beam-forming radar where the relative phase of two channels must be preserved. Key features include dual 12-bit core ADCs at 105 MSPS per channel, single 1.8 V supply operation, LVDS digital outputs, programmable full-scale input range, internal voltage reference, and a separate output supply (DRVDD) for LVDS common-mode interfacing. The 64-pin VFQFPN 9x9 mm footprint integrates exposed thermal pad for low-junction-temperature operation in dense multi-channel boards. In the system hierarchy, this part belongs to the analog-to-digital converter family -> data converter -> signal-chain IC -> mixed-signal semiconductor. Renesas acquired IDT in 2019 and continues to manufacture and support the ADC1212D105HN family. The C18 designator in the part number typically identifies the die revision and the 105MSPS speed grade. Typical applications include dual-channel digital oscilloscopes, communications receiver IF sampling, medical ultrasound beam-formers, multi-antenna Wi-Fi/5G base-station observation receivers, and multi-axis industrial vibration monitoring. The dual-core simultaneous sampling is ideal where channel-to-channel phase coherence must be preserved. When designing with the dual ADC, place the 1.8 V AVCC decoupling capacitors within 2 mm of the analog supply pins and provide an unbroken analog ground plane tied to the exposed pad. Match trace lengths for LVDS differential pairs to maintain lane-to-lane skew below 50 ps. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the IDT/ADC1212 family, and PCB layout notes beyond the manufacturer datasheet, helping engineers shorten sourcing and design-in time.
IDTADC1215S080HN-C1 - 12-bit 80MSPS Pipeline ADC | IDT/Renesas
The IDT (Integrated Device Technology, now Renesas) IDTADC1215S080HN-C1 is a monolithic 12-bit, 80 MSPS (mega-samples per second) pipelined analog-to-digital converter housed in a 40-pin HVQFN (6x6 mm) exposed-pad package. It delivers one differential analog input channel with on-chip sample-and-hold and an internal voltage reference optimized for high-speed IF sampling in communications, imaging and instrumentation systems. Operating from a single 3.0 V to 3.6 V analog supply, the device achieves 80 MSPS conversion rates suitable for software-defined radio, medical ultrasound, and baseband signal acquisition. A pipelined ADC is a multi-stage converter architecture in which each stage samples and quantizes a coarse portion of the input, then passes an amplified residue to the next stage; this design delivers high sample rates at moderate power dissipation, making it the dominant topology for 12-16 bit converters operating between 10 MSPS and 500 MSPS. The IDTADC1215S080HN-C1 belongs to the IDT/Renesas ADC1215 family of single-channel pipelined ADCs, a category that sits hierarchically under data converter ICs -> ADC -> pipelined ADC -> high-speed ADC -> semiconductor. Compared with successive-approximation (SAR) ADCs, pipelined converters trade absolute latency for sample-rate headroom, which is the key reason this part is chosen over a SAR when the system must digitize wide-bandwidth analog signals. Key features include 12-bit resolution with no missing codes, an internal bandgap reference, CMOS-compatible digital outputs, and an LVTTL/CMOS-compatible clock input. The on-chip input buffer and reference simplify external analog design, while the standard binary twos-complement or offset-binary output coding integrates seamlessly with downstream FPGAs or DSPs. The 40-pin HVQFN exposed-pad package provides a low thermal-resistance path for heat extraction, critical because the device can dissipate several hundred milliwatts at 80 MSPS. The architecture uses a 9-stage pipeline with a 3-bit first stage to balance linearity against latency, and includes proprietary digital error correction that removes comparator sparkle-induced errors. According to the IDT datasheet history this part was published 2010-10-19, making it a mature high-volume converter used in long-lifecycle products. Typical applications span software-defined radio (SDR) baseband and IF digitizers, medical ultrasound front-ends, high-speed instrumentation and oscilloscope front-ends, radar and lidar signal acquisition, and industrial imaging. The 80 MSPS rate is sufficient to digitize IF signals up to roughly 30-35 MHz without aliasing, satisfying most narrow-band communications and ultrasound front-end requirements. When designing with this part, pay attention to analog input common-mode voltage and clock jitter: a 12-bit 80 MSPS ADC needs an aperture jitter under 1 ps RMS to preserve SNR, and the analog input must be AC-coupled or DC-biased within the datasheet's specified common-mode window. This page synthesizes distributor pricing, drop-in alternatives drawn from the Site MPN list and web data, and practical design notes not found in the manufacturer datasheet.
IDTADC1215S080HN-C18 - 12-Bit 80 MSPS 1-Channel ADC | IDT/Renesas
The IDT (Integrated Device Technology, now Renesas Electronics America) IDTADC1215S080HN-C18 is a 12-bit resolution, 80 MSPS sampling rate, single-channel pipelined Analog-to-Digital Converter (ADC) housed in a 40-pin HVQFN (6x6 mm) exposed-pad package. The -C18 suffix indicates a specific speed bin and reel packaging. The device targets high-speed data acquisition systems where low power and small PCB footprint are critical. An ADC (Analog-to-Digital Converter) is a data converter integrated circuit that samples continuous analog signals and translates them into discrete digital codes for processing by FPGAs, microcontrollers, or DSPs. Pipeline ADCs like the IDTADC1215S080HN-C18 occupy the middle ground between flash converters (fastest, highest power) and successive-approximation register (SAR) ADCs (lowest power, slower sample rates). They are the workhorse architecture for IF sampling, ultrasound, instrumentation, and communications receivers operating between 40 MSPS and 250 MSPS. Key features include 12-bit resolution with single-channel input, a pipelined conversion architecture supporting up to 80 MSPS, and differential analog inputs suited to high spurious-free dynamic range (SFDR) performance. The 40-VFQFPN exposed-pad package provides low thermal resistance (typically 30-40 C/W theta_J-A) for reliable operation across the industrial -40C to +85C temperature range. The part is also RoHS compliant. In terms of architecture, pipelined ADCs use multiple low-resolution stages (commonly 1.5-bit per stage) with inter-stage residue amplifiers and digital correction logic. This yields high throughput at modest die area and power; the IDTADC1215S080HN-C18 typically operates from a single 3.3 V analog supply plus a 3.3 V or 1.8 V digital supply, depending on the reference design. Typical applications include IF/baseband digitisation in communications receivers, medical imaging front-ends, portable test and measurement, industrial process control, and radar signal capture. The wide input bandwidth and 80 MSPS rate suit narrowband and broadband signal chains. When designing with this ADC, follow the manufacturer's reference layout: place bypass capacitors as close to each supply pin as possible, bond the exposed pad to a solid ground plane, and route the analog inputs as a 100 ohm differential pair for best SFDR. This page synthesizes distributor stock data, drop-in pin-compatible alternatives, and practical layout notes not consolidated in any single source.
IDTADC1215S105HN-C18 - 12-Bit 105 MSPS ADC w/ Input Buffer | Renesas
The Renesas IDTADC1215S105HN-C18 is a single-channel, 12-bit pipelined analog-to-digital converter (ADC) sampling at up to 105 MSPS, integrated with an on-chip input buffer and supporting both CMOS and LVDS DDR digital outputs in a 40-pin VFQFN exposed-pad package. It belongs to the ADC1215S series of single 12-bit ADCs originally developed by Integrated Device Technology (now part of Renesas). Headline specifications include 12-bit resolution, 105 MSPS sampling rate, integrated input buffer, and selectable CMOS or LVDS DDR output interfaces. An ADC (Analog-to-Digital Converter) is a data-acquisition integrated circuit that samples continuous analog signals and converts them into discrete digital codes for downstream processing by FPGAs, DSPs, or microcontrollers. Pipelined ADCs such as the ADC1215S use a multi-stage architecture to achieve high sampling rates (tens to hundreds of MSPS) while maintaining moderate resolution (10-14 bits), making them the workhorse of communications infrastructure, medical imaging, and industrial test equipment. Within the broader hierarchy they sit under Data Acquisition ICs, which in turn belong to the signal-chain and power-management semiconductor family. Key features of the IDTADC1215S105HN-C18 include a wide analog input bandwidth supported by the integrated buffer, low spurious-free dynamic range (SFDR) optimized for IF-sampling applications, dual data-rate LVDS output for low-pin-count FPGA interfacing, and a small 6x6 mm 40-VFQFN footprint with an exposed thermal pad. The on-chip buffer eliminates the need for an external high-bandwidth op-amp driver, simplifying the analog front-end and reducing BOM cost. The part is specified over the industrial temperature range and supports single 3.3V analog and digital supply operation. The architecture combines a track-and-hold front end, a multi-stage pipelined switched-capacitor core, and a digital error-correction block. The integrated input buffer is a unity-gain wideband amplifier that presents a high impedance to the source and drives the switched-capacitor sampling network internally, which relaxes source-impedance matching and reduces gain-error drift over temperature compared to unbuffered ADC designs. Typical applications include wireless base-station IF sampling, cable-modem and set-top box tuners, medical ultrasound beamformers, portable and benchtop oscilloscopes, and high-speed industrial data-acquisition cards. The dual-output-interface feature (CMOS / LVDS DDR) lets the same part serve both low-cost MCU-based systems and high-performance FPGA-based signal processors. A key design consideration is the requirement for a clean, low-noise analog supply and well-bypassed reference; the exposed thermal pad must be soldered to a sufficiently large ground copper pour for proper heat dissipation and for the lowest possible package-inductance ground return. A common-pitfall warning: when interfacing the LVDS DDR outputs to a 1.8V FPGA, confirm VDD of the ADC's digital outputs and the FPGA's LVDS bank are matched or use an external level translator. This page consolidates distributor pricing, package-level data, and a drop-in alternative list that is not present in the manufacturer datasheet itself, giving engineers a faster path to second-source validation and BOM risk reduction.
IDTADC1215S125HN-C1 - 12-Bit 125 MSPS 1-Ch ADC | Renesas
The Renesas IDTADC1215S125HN-C1 is a 12-bit, 125 MSPS, single-channel pipelined analog-to-digital converter (ADC) housed in a 40-pin VFQFPN (6x6 mm) package with an exposed thermal pad. It is part of the IDT/Intersil/Renesas high-speed ADC family acquired from Integrated Device Technology, and is specified for 1 input channel at 125 MSPS conversion rate with a pipelined architecture optimized for IF/baseband digitization. An ADC (Analog-to-Digital Converter) is a data acquisition mixed-signal IC that samples continuous analog input voltages and converts them into discrete digital codes at a defined sample rate, expressed in samples per second (MSPS). The 12-bit pipelined architecture places this part in the mid-resolution high-speed tier — between 10-bit general-purpose ADCs and 14-16 bit precision converters — and it is widely used in communications, imaging, and instrumentation equipment. Within the Renesas portfolio it sits in the hierarchy: high-speed ADC -> data converter -> data acquisition IC -> mixed-signal IC -> semiconductor. Key features include 12-bit resolution, 125 MSPS maximum sample rate, 1 single-ended/differential input channel, a pipelined conversion core, low-latency CMOS-compatible digital outputs, and a 40-pin VFQFPN 6x6 mm surface-mount package with an exposed thermal pad (EP) for low thermal resistance. The -C1 suffix denotes the commercial temperature grade. The part is also available in related IDT/Renesas speed grades (65, 80, 105 MSPS) sharing the same 40-pin VFQFPN footprint. The pipelined architecture uses successive stages of low-resolution flash sub-ADCs, residue amplifiers, and DACs to achieve high throughput with moderate die area and power consumption. The 40-pin VFQFPN exposed-pad package provides a low thermal-resistance path and a compact board footprint suitable for densely populated digital boards. The LVCMOS/CMOS digital interface simplifies connection to FPGAs, ASICs, and DSPs without requiring an external LVDS receiver. Typical applications include communications IF/baseband digitization in wireless infrastructure, digital oscilloscopes and data acquisition front-ends, medical imaging receivers, radar and lidar signal chains, and industrial test and measurement equipment. The 125 MSPS rate comfortably digitizes IF signals up to about 50 MHz with margin for the Nyquist criterion. When designing with this device, allocate sufficient PCB copper to the exposed pad for thermal dissipation, and use a low-jitter clock source — pipelined ADC SNR degrades rapidly with aperture uncertainty. Provide well-decoupled analog and digital supplies to prevent switching-noise coupling into the sample-and-hold stage. This page synthesizes distributor stock, drop-in same-package alternatives from the same IDT/Intersil/Renesas ADC121x family, and practical design considerations that go beyond the manufacturer datasheet, including cross-brand fit notes.
IDTADC1215S125HN-C18 - 12-Bit 125MSPS ADC, 40-VFQFN | Renesas (IDT)
The Renesas IDTADC1215S125HN-C18 is a 12-bit resolution, single-channel, 125 MSPS pipelined analog-to-digital converter (ADC) housed in a 40-pin VFQFN exposed-pad package. Designed by Integrated Device Technology (now Renesas), the device targets low-latency, high-speed signal acquisition in communications, digital video, medical imaging, and industrial instrumentation. Its pipelined architecture delivers one sample per clock cycle at full 125 MSPS, with the -C18 speed-grade suffix denoting a specific performance bin and full production test flow. An ADC (Analog-to-Digital Converter) is a data-acquisition mixed-signal IC that converts continuous analog voltages into discrete digital codes at a defined sample rate. Pipelined ADCs use multiple cascaded low-resolution stages with inter-stage residue amplifiers and digital error correction to achieve high sample rates (tens to hundreds of MSPS) while maintaining 10-14 bit resolution. Within the broader hierarchy, the IDTADC1215S125HN-C18 belongs to the high-speed ADC category -> data converter -> mixed-signal IC -> semiconductor. Its pipelined topology makes it the workhorse for intermediate-frequency (IF) sampling, baseband digitisation in software-defined radio, and high-speed control loops. Key features include 12-bit native resolution, 125 MSPS maximum sample rate, single 3.3V analog supply operation, LVDS-compatible or CMOS-style digital outputs, and an integrated input buffer with adjustable full-scale range. The 40-VFQFN exposed-pad package provides a low thermal-resistance path (theta-JA typically 30-35 C/W) essential for continuous full-rate operation, plus a compact 6x6 mm footprint that simplifies multi-channel board layouts by tiling identical parts. The device typically supports both internal and external reference modes and offers LVDS DDR output clocking for easy FPGA/ASIC interface. Typical applications span communications transceivers (IF sampling, diversity receivers), medical ultrasound beamformers, portable instrumentation, high-speed data recorders, and radar baseband conversion. Pin compatibility with other IDT ADC121x family members enables straightforward migration to higher or lower sample rates within the same PCB footprint. When designing with this device, prioritise a continuous ground plane under the exposed pad and place input anti-alias filter components within 5 mm of the analog input pins to preserve SFDR. Decouple AVDD and DRVDD separately with 100 nF + 10 uF ceramic combinations close to the supply pins. This page synthesises distributor stock levels, drop-in alternatives from the IDT ADC121x family, and PCB layout guidance not found in the manufacturer datasheet, giving the engineer a single reference for sourcing, replacement, and design-in decisions.
ISL26104AVZ - 24-Bit 4kSPS 4-Ch Sigma-Delta ADC | Renesas
The Renesas ISL26104AVZ is a 24-bit low-noise delta-sigma analog-to-digital converter with four differential multiplexed input channels, an integrated low-noise programmable-gain amplifier (PGA), and an output data rate up to 4 kSPS, housed in a 28-pin TSSOP package. Its headline parameters are 24-bit resolution, 4 fully differential input channels, and a programmable output word rate from 2.5 SPS to 4 kSPS, all integrated in a single analog front-end IC. A delta-sigma (sigma-delta) ADC is a type of oversampling converter that uses a high-frequency modulator and digital decimation filtering to achieve very high resolution at the cost of absolute input bandwidth. In the broader taxonomy, the ISL26104 belongs to the precision ADC product family, which sits within data converters, a sub-category of mixed-signal integrated circuits. Delta-sigma ADCs are widely used in industrial weighing, process control, temperature measurement, and strain-gauge instrumentation because they trade conversion speed for excellent noise performance and integral linearity. Key features of the ISL26104AVZ include the on-chip low-noise PGA with gains from 1x to 128x, which allows direct connection of low-amplitude signals such as load cells, thermocouples, and bridge sensors without an external instrumentation amplifier. The device supports an external differential reference and offers a serial SPI-compatible output interface. Its integrated digital filter delivers 50 Hz and 60 Hz mains-rejection at appropriate output data rates, simplifying design for industrial environments with significant line-frequency noise. The device operates from a single analog supply (typically +5 V) and a digital supply, with an internal clock. The 28-pin TSSOP package provides a small footprint while still allowing hand-soldering for prototypes and small production runs. According to the Renesas datasheet, the ISL26104 also shares pin-out compatibility with the 2-channel ISL26102, giving designers a simple upgrade path when more channels are required. Typical applications include industrial weighing scales, load-cell signal conditioning, multi-channel temperature acquisition, pressure transducers, and precision weigh-in-motion modules. The combination of an integrated PGA and high-resolution conversion removes most of the analog signal-chain complexity for sensor readout. Designers should note that the PGA gain, output data rate, and digital-filter bandwidth trade off against each other: higher PGA gain reduces input-referred noise but narrows the usable bandwidth, while lower output data rates improve noise-free resolution at the expense of conversion speed.
ISL26104AVZ-T7A - 24-bit 4kSPS 4-Ch Sigma-Delta ADC | Renesas
The Renesas ISL26104AVZ-T7A is a 24-bit low-noise 4-channel delta-sigma analog-to-digital converter with on-chip programmable-gain amplifier and 4 kSPS maximum output data rate, housed in a 28-pin TSSOP package. It accepts four differential multiplexed inputs and operates from an analog supply of 4.75 V to 5.25 V and a digital supply of 2.7 V to 5.25 V. The serial interface provides SPI/QSPI/MICROWIRE-compatible read/write access to on-chip registers for channel selection, gain (1x-128x), and output data rate (2.5 SPS to 4 kSPS). A delta-sigma ADC is a type of oversampling converter that trades speed for resolution: an internal modulator shapes quantization noise away from the band of interest, and a digital decimation filter removes that noise to extract a high-resolution 24-bit code. The ISL26104's exceptionally low input-referred noise (about 10 nV/√Hz PGA equivalent, per the Renesas datasheet) places it firmly in the precision instrumentation category used in weigh scales, bridge transducers, and thermocouple acquisition. Key features include 24-bit noise-free resolution at lower data rates, a PGA with gains of 1, 2, 4, 8, 16, 32, 64, and 128, a single-cycle settling digital filter, an integrated low-drift reference input, and a low quiescent current ideal for loop-powered or battery instruments. The four differential input channels are sequentially scanned via the MUX register, simplifying multi-sensor front ends by removing external analog switches. Typical applications include industrial load-cell weigh scales, RTD and thermocouple temperature acquisition, pressure-sensor signal conditioning, multi-zone gas detection front ends, and precision laboratory instrumentation where 4 kSPS covers typical slow-control loops without sacrificing effective resolution. When designing with this part, place 0.1 uF decoupling capacitors within 5 mm of AVDD and DVDD, keep the analog and digital grounds separated and joined only at the exposed pad, and choose an RGEF/A external reference or pair of input resistors to set the common-mode for thermocouple measurement. This page synthesizes distributor stock and pricing as of 2026-10-13, drop-in TSSOP-28 alternatives from the same and cross-brand product families, and practical design notes not found in the manufacturer datasheet.
ISL26134AVZ-T7A - 24-bit Low-Noise Delta-Sigma ADC | Renesas
The Renesas ISL26134AVZ-T7A is a 24-bit, low-noise, 4-input, 1-channel sigma-delta analog-to-digital converter housed in a 28-pin TSSOP surface-mount package. It integrates a very low-noise programmable-gain amplifier (PGA) front end with up to 128x gain, an internal 2.5V reference, and on-chip calibration registers, all on a single mixed-signal IC designed for high-resolution measurement. A delta-sigma ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve very high resolution at the expense of input bandwidth. The ISL26134 sits at the top of the ADC hierarchy (delta-sigma -> ADC -> data converter -> data acquisition IC -> signal chain), enabling 24-bit effective resolution for DC and low-frequency measurements such as load-cell, strain-gauge, and temperature bridge readouts. Key features include 4 differential or 7 single-ended input channels selectable through a digital multiplexer, a true 24-bit no-missing-codes output, integrated PGA gain from 1x to 128x, an auxiliary 24-bit DAC for sensor excitation, and a simple SPI-compatible serial interface. RMS noise below 8 nV at low sample rates and a calibrated integral nonlinearity of better than 0.0015% of full scale make it suitable for precision weighing scales and laboratory instrumentation. The architecture combines a chopper-stabilized front end, a third-order modulator, and a digital SINC1/SINC3 FIR decimation filter. The chopper stage removes 1/f flicker noise; the modulator pushes quantization noise well above the baseband where the SINC filter removes it. Internal gain and offset calibration registers compensate for drift over temperature. Typical applications include industrial weigh scales, temperature/pressure bridge transmitters, multichannel data loggers, and 6-digit digital multimeter front ends. The wide PGA range lets the same IC read directly from low-output sensors such as load cells without external instrumentation amplifiers. Designers should keep analog and digital ground planes separated and place the bypass capacitors within 3 mm of the supply pins to avoid digital switching noise coupling into the modulator. For maximum SNR, choose the lowest output data rate that still meets the application bandwidth, since each halving of data rate reduces input-referred noise by approximately 30%.
ISL26310FBZ - 12-bit 125kSPS SAR ADC | Renesas
The Renesas ISL26310FBZ is a 12-bit, 125 kSPS successive-approximation-register (SAR) analog-to-digital converter with single-ended and differential inputs, housed in an 8-pin SOIC (NB) package. It features low power consumption, single +5V analog supply operation, and an SPI/QSPI/MICROWIRE-compatible serial interface, making it a fit for embedded industrial and instrumentation digitizer front ends. A SAR ADC is a successive-approximation-register analog-to-digital converter. It uses a binary search algorithm and an internal precision DAC to compare the sampled input against a reference voltage, producing a digital code in N conversion cycles for an N-bit result. SAR ADCs excel at low-latency, single-shot conversions with no pipeline delay, occupy a small footprint, and draw no idle current between conversions - ideal for multiplexed channel scanning, low-duty-cycle battery-powered sensing, and microcontroller-interfaced data acquisition where simplicity and deterministic latency matter more than maximum throughput. Key specifications of the ISL26310FBZ include 12-bit resolution, 125 kSPS maximum sampling rate, single +5V analog supply with +3.3V/+5V digital supply, single-ended and true-differential input pair operation, integrated track/hold, and a low-power serial interface that supports SPI, QSPI, and MICROWIRE protocols. The device includes a hardware shutdown pin to reduce current draw between conversions. The ISL26310FBZ is part of the ISL26310/11/12/13/14/15/19 pin-compatible family that scales channel count, input configuration (single vs. differential), and resolution up to 14-bit. This lets designers migrate between channel counts without PCB redesign. The internal SAR core uses a charge-redistribution DAC array with auto-calibrated capacitor matching to deliver linearity performance consistent across the full industrial temperature range. Typical applications include industrial process control loop monitoring, portable battery-powered instrumentation, multichannel data acquisition front ends, isolated sensor signal conditioning, and remote telemetry / SCADA modules. The 125 kSPS rate supports per-channel rates up to 10 kSPS in multiplexed multi-channel systems, sufficient for vibration, strain, and temperature acquisition. When using this device, decouple AVDD and DVDD separately close to the pins with 10uF bulk plus 0.1uF ceramic bypass, and add a 0.1uF cap on REF+ to ground. The shutdown pin (SHDN) can be tied to logic high for always-on operation; drive low between conversions to minimize system power. This page synthesizes current distributor pricing, drop-in pin-compatible alternatives from the ISL2631x family, and practical design notes not collated in the manufacturer datasheet.
ISL26310FBZ-T - 12-bit 125kSPS SAR ADC Single-Channel | Renesas
The Renesas ISL26310FBZ-T is a 12-bit, 125 kSPS successive-approximation-register (SAR) analog-to-digital converter with a single differential input channel, supplied in an 8-pin SOIC package and qualified for industrial temperature operation. It accepts single-ended or differential analog inputs, communicates over an SPI/serial interface, and operates from a 2.7 V to 5.5 V analog supply with low power dissipation suitable for battery-powered and always-on measurement systems. A SAR ADC is a type of analog-to-digital converter that performs a binary search through an internal capacitive DAC to digitize an analog input, completing a conversion in a fixed number of clock cycles. Within the data-acquisition hierarchy, the ISL26310FBZ-T sits between general-purpose 8-/10-bit ADCs and higher-resolution 14-/16-/24-bit delta-sigma converters, offering a balanced trade-off of speed, resolution, and power. Renesas's proprietary input multiplexer and input buffer amplifier reduce external drive requirements, simplifying front-end design. Key features include 12-bit resolution with no missing codes, a 125 kSPS maximum sampling rate, an internal 2.5 V reference, and integrated input buffer that reduces kickback and drive demands. The single-channel differential input accepts bipolar input ranges when properly biased, and the SPI-compatible serial interface supports daisy-chaining of multiple converters to minimize MCU pin count. Architecture highlights include a low-noise charge-redistribution SAR core, an automatic input multiplexer, and an on-chip oscillator. The 8-pin SOIC package has a thermal resistance of approximately 110 C/W and a small footprint (3.90 mm body width), enabling compact PCB layouts for portable instruments and process-control modules. Typical applications include portable instrumentation, process-control analog input modules, battery-powered sensor conditioning loops, and industrial data-acquisition front ends. The wide 2.7 V to 5.5 V supply range and low power consumption make the part well suited to distributed I/O nodes where heat and energy budget matter. When designing with this device, add anti-alias filtering on the analog input prior to the ADC and ensure the SPI SCLK stays within the converter's rated timing budget. Decoupling the AVDD pin with 100 nF and 10 uF capacitors placed close to the package pins is recommended to keep digital switching noise out of the conversion result. This page synthesizes verified distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes that go beyond the datasheet's typical-application drawings, giving engineers a single reference for sourcing and second-sourcing decisions.
ISL26310FBZ-T7A - 12-bit 125kSPS SAR ADC, 1-Ch, 8-SOIC | Renesas
The Renesas ISL26310FBZ-T7A is a 12-bit resolution successive-approximation-register (SAR) analog-to-digital converter that samples at 125 kSPS in an 8-pin SOIC package. The single-channel device supports single-ended inputs with bipolar analog input ranges up to ±10 V (or 0 V to 12 V unipolar) when paired with ±5 V or +5 V external supplies. Its SPI-/QSPI-/MICROWIRE-compatible serial interface simplifies connection to microcontrollers, DSPs, and FPGAs in data-acquisition designs. The ISL26310FBZ-T7A is a member of the ISL2631x SAR ADC family which includes 1/2/4/8-channel single-ended and 1/2/4-channel differential input options. An SAR ADC is a sampling converter that uses a binary-searched capacitor DAC against the input voltage, producing an inherently low-latency digital conversion. It belongs to the broader signal-chain family: ADC -> data converter -> analog front-end -> data acquisition IC -> signal-chain component -> semiconductor. The bipolar-CMOS process gives the part low power consumption while preserving high DC accuracy and excellent linearity over temperature. Key features include 12-bit no-missing-codes performance, ±1 LSB INL/DNL typical, a low 5 mW power dissipation at 125 kSPS with 5 V supplies, and hardware/software shutdown that drops quiescent current to a few hundred nanoamperes. An internal input multiplexer (on multi-channel variants) plus a combination buffer amplifier reduces the need for external signal-conditioning, lowering the analog front-end bill of materials in instrumentation and process-control boards. Typical applications are industrial process control loops, multi-channel PLC analog input modules, portable/battery-powered instrumentation, and data-acquisition (DAQ) front ends that require ±10 V input ranges, ±5 V dual supplies, and a small serial-only footprint. Two of those industries, factory automation and mobile instrumentation, depend heavily on the part's robustness over temperature. When designing with this device, choose an external reference and op-amp front end sized to the source impedance to keep conversion error below 1 LSB at the full 125 kSPS data rate.
ISL26311FBZ - 12-bit 125kSPS SAR ADC | Renesas Electronics
The Renesas Electronics (formerly Intersil) ISL26311FBZ is a 12-bit, 125 kSPS successive-approximation (SAR) analog-to-digital converter in an 8-pin SOIC package with one differential/single-ended input channel. It delivers low power consumption, supports single-ended and differential input modes, and integrates multiple input channels for flexible signal-chain design in industrial, instrumentation, and process-control applications. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary search algorithm with an internal DAC and comparator to digitize an analog input one bit at a time per clock cycle. SAR ADCs sit in the broader hierarchy of ADC architectures (SAR -> Nyquist-rate ADC -> data converter -> mixed-signal IC -> semiconductor) and are favored for medium-resolution, medium-speed acquisitions where low latency, deterministic sampling, and excellent DC accuracy are required. Key features include 12-bit resolution, 125 kSPS maximum sampling rate, single-channel input with single-ended or differential operation, an internal reference, and a SPI/QSPI/MICROWIRE-compatible serial interface. The wide analog input range and integrated input multiplexer simplify front-end signal conditioning, while the small 8-pin SOIC footprint supports compact PCB layouts in space-constrained designs. The device uses a low-noise charge-redistribution SAR architecture with an input track-and-hold, achieving ±1 LSB INL and low aperture jitter. The robust digital interface simplifies host-MCU integration, and the part operates from a single analog supply, reducing external component count. Its low power consumption makes it suitable for battery-powered data-acquisition systems. Typical applications include industrial process control loop monitoring, portable instrumentation and data loggers, multi-channel sensor signal acquisition, medical patient-monitoring front ends, and precision measurement equipment. The single-supply operation simplifies isolated sensor interface designs where low power and small package size are critical. When designing with this ADC, ensure the analog input does not exceed the supply rails and use the recommended bypass capacitors on AVDD and DVDD. The internal reference may be bypassed with an external capacitor for low-noise operation; verify timing against the SAR acquisition window in your specific signal-chain design. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers a single reference for sourcing and substituting the ISL26311FBZ.
ISL26311FBZ-T7A - 12-bit 125kSPS SAR ADC, 1-Ch Diff | Renesas
The Renesas ISL26311FBZ-T7A is a 12-bit, 125 kSPS successive-approximation-register (SAR) analog-to-digital converter with a single differential input channel, housed in an 8-pin SOIC-N package and supplied on a 7-inch tape and reel. According to the manufacturer datasheet, the device operates from a single 2.7 V to 5.25 V analog supply and provides a high-speed SPI-/serial-compatible digital interface, integrating the sample-and-hold, reference input, and conversion clock on-chip to minimize external BOM. A SAR ADC is a type of data converter that uses a binary-search successive-approximation algorithm to digitize an analog input, trading resolution for speed. SAR converters sit within the broader ADC family (alongside delta-sigma, pipeline, and flash ADCs) and are widely preferred in multiplexed data-acquisition systems, industrial control loops, and portable instrumentation where deterministic latency, low power, and small package size are required. The ISL26311 belongs to the ISL26310/11/12/13/14/15/19 pin-compatible SAR ADC family from Renesas, which lets designers reuse one PCB footprint across multiple channel-count variants. Key features of the ISL26311FBZ-T7A include 12-bit resolution (no missing codes), true differential analog inputs for high common-mode rejection, integrated low-drift reference buffer support, and a 1-/8-pin SOIC footprint that simplifies layout in space-constrained designs. The low-power architecture targets 125 kSPS throughput at sub-mW conversion rates while preserving excellent AC and DC linearity for precision sensor read-back. The single-channel input simplifies firmware and routing when only one precision voltage must be measured. Typical applications for the ISL26311FBZ-T7A include industrial process control, isolated sensor front-ends, multichannel data-acquisition systems where it is paired with multiplexers, battery management monitoring, and portable medical instrumentation. The differential input allows direct connection to bridge sensors such as load cells and strain gauges without an external instrumentation amplifier, reducing board area and cost. When designing with this ADC, ensure the analog supply is well decoupled with a 10 uF bulk plus 0.1 uF ceramic placed as close as possible to the AVDD pin. Reference decoupling on the REF pin is critical to achieving rated noise performance. The digital lines should be kept short and routed away from the analog input to minimize coupling. This page synthesizes distributor pricing, the ISL2631x pin-compatible family, and practical design notes that are not collated in the manufacturer datasheet.
ISL26312FVZ - 12-bit 125kSPS 2-ch Diff SAR ADC | Renesas
The Renesas ISL26312FVZ is a 12-bit, 125 kSPS, dual-channel differential-input successive-approximation-register (SAR) analog-to-digital converter housed in a 16-pin TSSOP package. It operates from a single 2.7 V to 5.25 V analog supply with a separate digital I/O supply (1.8 V to AVDD), supports single-ended or true differential inputs, and provides an SPI-compatible serial interface with daisy-chain capability. The part is pin-compatible with the wider ISL26310/11/13/14/15/19 family, allowing channel-count scaling without board rework. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and a precision internal DAC to converge on the input voltage in one conversion cycle per bit. SAR ADCs sit in the broader category hierarchy of data converter -> ADC -> successive-approximation ADC -> precision data acquisition IC, and are typically chosen over delta-sigma converters when low latency (no pipeline delay), wide input bandwidth, and true-differential inputs are required in industrial control and instrumentation front ends. Key features include excellent linearity over supply and temperature, an input multiplexer combined with a low-drive buffer amplifier that relaxes external driver requirements, and a proprietary input MUX that supports 1-, 2-, 4-, and 8-channel single-ended configurations as well as 1-, 2-, and 4-channel differential configurations across the family. Typical INL/DNL is better than 1 LSB and the device draws only a few mW at full throughput, making it suitable for battery-powered monitoring. Typical applications include industrial process control loop measurement, multi-channel sensor data acquisition (temperature, pressure, strain gauges), battery monitoring and management systems, motor-control feedback, and instrumentation front-ends that require low-latency differential conversion. Designers appreciate the combination of small TSSOP footprint, simple SPI interface, and high DC accuracy. When designing with this device, place the analog and digital ground planes with proper partitioning and keep the REFIN decoupling capacitor as close to the pin as possible to maintain DC accuracy. Use a low-impedance input buffer when driving the AIN pins from high-impedance sensors. This page synthesizes distributor pricing, drop-in pin-compatible alternatives within the ISL2631x family, and practical design notes that complement the manufacturer datasheet for fast design-in decisions.