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ISL26319FVZ-T - 12-bit 125kSPS 8-CH SAR ADC | Renesas
ISL26319FVZ-T

ISL26319FVZ-T - 12-bit 125kSPS 8-CH SAR ADC | Renesas

The Renesas ISL26319FVZ-T is a 12-bit, 125 kSPS, 8-channel single-ended (4-channel differential) successive-approximation analog-to-digital converter (SAR ADC) in a 16-pin TSSOP (FVZ) package, specified over the industrial -40C to +125C range. The -T suffix denotes tape-and-reel shipping. According to the Renesas datasheet, the part accepts single supplies from 2.7 V to 5.25 V, draws 11 mW (typical 8 uA between conversions in Auto Power-Down), and provides a true-differential input stage with proprietary input multiplexer/combination buffer that lowers input drive requirements. SAR ADCs are a class of analog-to-digital converters that resolve one bit per clock cycle through a switched-capacitor binary-weighted DAC. They are prized for deterministic latency, no pipeline delay, excellent DC linearity, and low power consumption at modest sample rates, making them a standard choice for industrial process control, instrumentation, data-acquisition front-ends, and multi-channel sensor readouts. Within the converter hierarchy, the ISL26319FVZ-T sits at the precision-low-power-mid-speed tier (12-bit, 125 kSPS), above micro-power 8/10-bit SARs and below 16/18/24-bit precision SARs or sigma-delta converters. Key features include 8 single-ended input channels (or 4 differential), an SPI-compatible serial interface for configuration and data read-back, integrated input buffer with high impedance, an internal 4.096 V or external reference option, and an auto power-down mode that drops quiescent current to microampere levels between conversions. The wide supply range allows direct connection to 3.3 V or 5 V rails commonly found in industrial and battery-backed systems. Typical applications include multi-channel data-acquisition modules, process-control sensor reading (temperature, pressure, strain-gauge bridges with external signal conditioning), battery monitoring in 12-24 V systems, PLC analog input cards, and portable instrumentation where low average power is mandatory. Designers should provide a clean analog ground plane, decouple AVDD with a low-ESR 1 uF/100 nF pair, and observe the 50 ns minimum CS setup time. Auto power-down timing must be honored to achieve the 8 uA typical standby figure. This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.

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ISL26320FBZ-T7A - 12-bit 250kSPS 1-Ch SAR ADC | Renesas
ISL26320FBZ-T7A

ISL26320FBZ-T7A - 12-bit 250kSPS 1-Ch SAR ADC | Renesas

The Renesas ISL26320FBZ-T7A is a 12-bit, 250 kSPS, single-channel, low-power SAR (Successive Approximation Register) analog-to-digital converter with serial interface in a 8-pin SOIC N package. It accepts single-ended and differential input signals, operates from a 2.7 V to 5.25 V analog supply, and provides SPI-/QSPI-/MICROWIRE-compatible serial output for direct connection to microcontrollers and DSPs. The -T7A suffix indicates 7-inch (178 mm) tape-and-reel packaging. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to determine each bit of the conversion result. SAR ADCs are prized for low power consumption, zero-latency single-shot conversions, and excellent DC linearity. They sit beneath the broader ADC hierarchy (SAR -> Nyquist ADC -> data converter -> mixed-signal IC), sharing the family with delta-sigma, pipeline, and flash architectures. SAR converters typically dominate applications in the 8- to 16-bit range and 100 kSPS to 1 MSPS throughput band - exactly the niche the ISL26320 family targets. Key specifications include 12-bit resolution, 250 kSPS maximum sample rate, low single-ended and differential input support, and an integrated input multiplexer plus combination buffer amplifier that lowers the external drive requirement. The proprietary input stage simplifies the signal chain, reducing overall BOM cost and PCB area in multi-channel and battery-powered designs. The device belongs to the ISL26320/21/22/23/24/25/29 pin-compatible family from Renesas, which scales channel count and sample rate across the portfolio. The ISL26320 is the 1-channel, 250 kSPS entry point. It uses a bipolar CMOS process variant with trimmed thin-film resistors, achieving excellent linearity over the rated -40 °C to +85 °C industrial temperature range. Typical applications include industrial process control, portable instrumentation, battery-powered data loggers, sensor signal conditioning, and multi-channel data-acquisition front-ends where low power and small footprint matter. Its single 5 V supply operation suits industrial 24 V bus systems after front-end regulation. When designing in this ADC, decouple AVDD and DVDD separately with 0.1 µF ceramic capacitors close to the pins, and provide a clean low-impedance reference. Place the analog and digital grounds on split planes joined under the ADC. Note that the wider ISL2632x family footprint remains pin-compatible across channel-count variants, simplifying PCB scaling. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and source this Renesas SAR ADC efficiently.

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ISL26323FBZ - 12-Bit 250kSPS Dual-Channel SAR ADC | Renesas
ISL26323FBZ

ISL26323FBZ - 12-Bit 250kSPS Dual-Channel SAR ADC | Renesas

The Renesas ISL26323FBZ is a 12-bit, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with two single-ended input channels, housed in an 8-pin SOIC (NB) package. It supports an analog input range of 0 V to VREF (with VREF up to 5 V) and operates from a single 2.7 V to 5.25 V analog supply, drawing only 2.5 mA typical supply current at 250 kSPS. An analog-to-digital converter (ADC) is a data converter that translates real-world continuous voltages into discrete digital codes. SAR ADCs in particular use a binary-search capacitor array and comparator to resolve one bit per clock cycle, delivering deterministic latency with no pipeline delay - which makes them well suited to multiplexed multi-channel data-acquisition systems and control loops where deterministic timing matters. The ISL26323 sits in the precision-data-acquisition product hierarchy: SAR ADC -> ADC -> data converter -> signal chain IC -> semiconductor. Key features include INL of ±1 LSB maximum, DNL of ±1 LSB maximum, an internal 2.5 V reference option (with external reference override up to 5 V), an SPI-/QSPI-/MICROWIRE-compatible serial interface, a hardware SHND pin, and a true-differential analog input structure that rejects common-mode noise. The 8-pin SOIC footprint simplifies PCB layout and is compatible with standard surface-mount assembly lines. The device uses a charge-redistribution SAR core with a proprietary input multiplexer and input buffer, lowering the drive requirement on the upstream sensor or instrumentation amplifier. A throughput of 250 kSPS is sufficient for vibration, motor-control, and precision-sensor signal chains that previously required expensive delta-sigma converters. Typical applications include industrial process control loop digitization, multi-channel temperature sensing via RTD or thermocouple front ends, battery-cell voltage monitoring in 12 V/24 V/48 V battery-management systems, portable instrumentation, and PLC analog input modules. The wide supply range and small footprint also suit it to point-of-load digitization in factory-automation I/O cards. When designing with the ISL26323FBZ, treat the analog ground return as a star-grounded island separate from noisy digital returns; route SCLK, SDO, and CONVST traces over a continuous ground plane to limit digital coupling into the sample-and-hold. The shutdown pin can cut supply current to under 1 microamp for battery-powered sensor nodes. This page synthesizes distributor pricing for the ISL26323FBZ, drop-in same-package alternatives from the ISL263xx family, and practical PCB and reference-layout notes not found in the manufacturer datasheet, giving engineers a single, citation-ready reference for new designs and field replacements.

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ISL26323FBZ-T - 12-bit 250kSPS Dual-Channel Low-Power SAR ADC | Renesas
ISL26323FBZ-T

ISL26323FBZ-T - 12-bit 250kSPS Dual-Channel Low-Power SAR ADC | Renesas

The Renesas ISL26323FBZ-T is a 12-bit, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with two differential input channels, housed in an 8-pin SOIC (N) package. It supports both single-ended and differential input modes, offers a serial SPI-compatible digital interface, and operates from a 2.7 V to 5.25 V analog supply. The device is part of the ISL26320/21/22/23/24/25/29 low-power SAR ADC family, which features excellent linearity over supply and temperature variations. A SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm to convert an analog input to a digital code in a fixed number of clock cycles, typically one per bit. SAR ADCs sit within the broader data-converter family (SAR -> ADC -> data converter -> mixed-signal IC -> semiconductor), and are valued for their deterministic latency, low power consumption, and high effective resolution per sample. The ISL26323FBZ-T specifically targets the 12-bit precision segment with sample rates up to 250 kSPS, making it well suited for industrial sensor readout, multi-channel data acquisition, and instrumentation front ends. Key features of the ISL26323FBZ-T include up to 5 kV Human Body Model ESD survivability, guaranteed monotonic operation, and an industrial temperature range of -40 °C to +125 °C. Its single-ended/differential input flexibility allows the same PCB footprint to accept either sensor type without a re-design, while the SPI/serial digital interface reduces microcontroller pin count compared to parallel-output ADCs. Typical applications include industrial process control loops, multi-channel temperature and pressure monitoring, PLC analog input modules, battery-cell voltage monitoring in BMS front ends, and general-purpose data-acquisition systems. The wide analog supply range (2.7 V to 5.25 V) supports both 3.3 V and 5 V microcontroller environments with the same BOM. When designing with this part, ensure the analog and digital grounds are tied together at a single point near the IC, and place the 10 µF bulk + 0.1 µF bypass capacitors as close to the AVDD pin as possible. The SOT-23-6/8-SOIC thermally enhanced package allows continuous operation at full sample rate without thermal throttling, but the input RC antialiasing filter should be sized to keep the -3 dB bandwidth below the Nyquist frequency of 125 kHz for 250 kSPS throughput. This page synthesizes verified distributor pricing, pin-compatible drop-in alternatives, and practical design notes not consolidated in the Renesas datasheet PDF.

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ISL26323FBZ-T7A - 12-bit 250kSPS SAR ADC, 2-Ch | Renesas
ISL26323FBZ-T7A

ISL26323FBZ-T7A - 12-bit 250kSPS SAR ADC, 2-Ch | Renesas

The Renesas ISL26323FBZ-T7A is a 12-bit, 250 kSPS successive-approximation (SAR) analog-to-digital converter with two single-ended input channels (or one differential channel), offered in an 8-pin SOIC package on a 7-inch tape-and-reel carrier (T7A suffix). It belongs to the ISL26320/21/22/23/24/25/29 ADC family from Renesas (originally Intersil) and is specified over the -40 °C to +125 °C automotive temperature range, drawing only a few milliwatts from a single analog supply. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a conversion topology that uses a binary-search algorithm against an internal precision DAC to digitize an input voltage in N clock cycles for N-bit resolution. SAR ADCs occupy the middle ground between high-speed flash converters and high-precision delta-sigma converters, combining low latency (no digital filter delay), deterministic throughput, and strong dynamic performance for multiplexed multi-channel data-acquisition systems where the input must settle and convert on every sample period. The defining features of the ISL26323FBZ-T7A are its 12-bit resolution, 250 kSPS guaranteed sampling rate, integrated input multiplexer, proprietary input buffer amplifier that lowers the driving amplifier requirements, a flexible serial interface (SPI/QSPI/MICROWIRE-compatible plus DSP-mode framing), and very low power consumption. The high linearity is maintained over supply and temperature, enabling true 12-bit performance without calibration in tightly-budgeted industrial loops. Architecturally, the part pairs an inherent low-noise charge-redistribution DAC with a SAR engine and an on-chip track-and-hold. The internal buffer reduces the burden on the upstream op-amp, so designers can use lower-power amplifiers and still meet the 250 kSPS settle requirement on the multiplexer output, which simplifies the analog front end. Typical applications include factory-automation analog input modules, multi-channel sensor-digitizer boards, portable instrumentation, weigh scales, process-control I/O, and automotive telematics/sensor ECUs. The wide operating range and small footprint also suit battery-powered data loggers and isolated data-acquisition front ends. When designing with this ADC, sequence the analog supply with a low-noise LDO such as the ISL75051SRH or TPS7A4700, place a 10 nF ceramic bypass right at the AVDD pin, and keep the analog and digital grounds joined at a single point under the exposed pad or a guard ring. Source impedance below 500 Ω preserves linearity at the highest conversion rates. This page synthesizes distributor pricing, drop-in same-family and cross-brand alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers shorten their bring-up time.

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ISL26324FVZ - 12-bit 250kSPS 4-ch SAR ADC | Renesas
ISL26324FVZ

ISL26324FVZ - 12-bit 250kSPS 4-ch SAR ADC | Renesas

The Renesas ISL26324FVZ is a 12-bit, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with 4 single-ended (or 2 differential) input channels, housed in a 16-pin TSSOP package. The device operates from a 2.7 V to 5.25 V analog supply and draws low power across the sample-rate range, making it well suited to multi-channel industrial instrumentation and battery-powered monitoring front-ends. An on-chip proprietary input multiplexer and combination buffer amplifier reduce the external drive requirements on each input source. A SAR ADC operates by performing a binary search through an internal capacitive DAC, comparing the sampled input against successively switched reference levels on each clock cycle. The architecture delivers zero-latency conversions (a single-cycle latency at the digital interface) and excellent linearity over supply and temperature variations. SAR ADCs sit inside the broader data-converter taxonomy between delta-sigma converters (which prioritize resolution at low speeds) and flash converters (which prioritize speed at low resolution), and are typically the preferred choice for multiplexed mid-speed multi-channel acquisition where channel switching on every cycle is acceptable. Key specifications include ±1 LSB INL and DNL over temperature, throughput up to 250 kSPS in normal mode, integrated input buffers, an SPI-compatible serial interface, and a TSSOP-16 footprint with -40 °C to +85 °C (or extended automotive) operating range. The combination buffer amplifier allows direct connection to high-impedance sensors and to signal-conditioning circuits without external op-amps. Power consumption scales with the configured sample rate, enabling software-managed trade-offs between speed and dissipation. Typical applications include multi-channel industrial process instrumentation, factory-automation analog input modules, battery-cell voltage monitoring in battery-management systems, programmable logic controller (PLC) analog front-ends, and isolated data-acquisition front-ends. The wide supply range (2.7 V – 5.25 V) also makes the part suitable for 3.3 V and 5 V digital systems that share a common supply rail with downstream logic. When designing the analog front-end, keep source impedances low and decouple AVDD and DVDD with 10 µF bulk plus 0.1 µF ceramic capacitors placed within 5 mm of the supply pins. The REF input requires a low-noise, low-drift reference; a single REF decoupled with 10 µF and 0.1 µF on the pin delivers rated performance. Use the chip-select pin for multi-device SPI bus sharing, and follow standard SPI mode-0 or mode-3 timing as documented in the datasheet. This page synthesizes distributor pricing, drop-in alternatives from the same TSSOP-16 SAR family, and practical design notes not found in the manufacturer datasheet.

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ISL26324FVZ-T - 12-bit 250kSPS 4-ch SAR ADC | Renesas
ISL26324FVZ-T

ISL26324FVZ-T - 12-bit 250kSPS 4-ch SAR ADC | Renesas

The Renesas ISL26324FVZ-T is a 12-bit, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with four single-ended and two differential input channels, housed in a 16-pin TSSOP package. According to the Renesas datasheet, it operates from a single 2.7 V to 5.25 V analog supply, delivers ±1 LSB INL and DNL, and consumes 15 mW typical at full throughput. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous analog voltage and quantizes it into a discrete binary code. Within the converter taxonomy, SAR ADCs use a binary-search successive-approximation algorithm with an internal sample-and-hold and a precision DAC, providing deterministic latency, low power, and high accuracy at moderate sampling rates (typically up to ~1 MSPS). SAR ADCs are widely used as the precision A/D building block inside data-acquisition systems, motor control loops, instrumentation front-ends, and sensor signal chains where DC accuracy and repeatable sampling latency matter more than raw speed. Key features of the ISL26324FVZ-T include a high-impedance analog input multiplexer with proprietary input buffer that relaxes external driver requirements, an SPI-compatible serial digital interface for easy connection to microcontrollers and FPGAs, an auto power-down mode that reduces operating current to 8 µA typical between conversions, and excellent linearity (THD -82 dBFS) over the full supply and temperature range. The internal architecture combines an input multiplexer, a track-and-hold buffer, the SAR conversion core, and a precision reference input. The serial interface uses simple SCLK, SDOUT and CS lines, supporting read-out rates up to the maximum conversion rate without requiring an external clock. Channel selection and configuration are programmed through the SPI interface. Typical applications include industrial process control, multi-channel sensor monitoring, portable instrumentation, factory automation, and medical patient monitoring. The wide supply range (2.7 V to 5.25 V) makes the part equally at home in 3.3 V microcontroller systems and 5 V industrial backplanes. A key design consideration is the bypass network on AVDD and DVDD: place 10 µF tantalum and 0.1 µF ceramic capacitors within a few millimeters of each supply pin to keep switching transients out of the conversion result. Reference decoupling is also critical, particularly when an external reference is used. This page synthesizes verified distributor pricing, drop-in alternative MPNs from the same ISL2632x family and competitive SAR ADCs, and practical design notes - information gain that is not assembled on the Renesas product page alone.

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ISL26325FVZ - 12-Bit 250kSPS 4-Channel SAR ADC | Renesas
ISL26325FVZ

ISL26325FVZ - 12-Bit 250kSPS 4-Channel SAR ADC | Renesas

The Renesas ISL26325FVZ is a 12-bit, 250 kSPS low-power successive-approximation-register (SAR) analog-to-digital converter with four single-ended (or two differential) input channels, housed in a 16-pin TSSOP package. The part operates from a single 5 V nominal supply, draws only 15 mW at 250 kSPS, and falls to 8 µA typical between conversions when Auto Power-down mode is enabled, making it well-suited to power-constrained multi-channel data-acquisition systems. The serial digital interface is SPI-compatible, simplifying connection to popular FPGAs and microcontrollers across industrial and consumer designs. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm against an internal DAC to resolve each conversion in N bit-clock cycles. SAR ADCs offer the best trade-off among speed, resolution, and latency for precision multiplexed applications. They are a sub-category of data converters, which sit within the broader signal-chain IC family alongside amplifiers, filters, and references. Key features of the ISL26325FVZ include 12-bit resolution, 250 kSPS throughput, a proprietary input multiplexer and combination buffer amplifier that lowers input drive requirements, integrated sequencer support, and excellent linearity over supply and temperature. The Auto Power-down function reduces idle current dramatically between bursts, extending battery life in portable instruments. The internal architecture pairs a capacitive-DAC SAR core with a low-leakage input MUX and on-chip reference buffer, allowing the converter to maintain INL/DNL performance over the full -40 °C to +125 °C automotive temperature range. The SPI/QSPI/MICROWIRE-compatible serial port supports daisy-chaining multiple devices for high-channel-count systems. Typical applications include industrial process control and PLC analog front ends, automotive sensor monitoring, battery-management telemetry, portable instrumentation, and multi-zone temperature or pressure monitoring. Designers often pair the ISL26325 with a precision op-amp driver and an external 2.5 V or 4.096 V reference to maximize absolute accuracy. When designing the input front end, ensure the source impedance stays below the value recommended in the manufacturer datasheet to avoid gain errors. The Auto Power-down mode assumes a stable clock and consistent CS framing - verify timing in your MCU's SPI peripheral before relying on the lowest quiescent current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone, helping engineers shorten the selection cycle and avoid common pitfalls.

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ISL26325FVZ-T - 12-bit 250kSPS 4-Ch SAR ADC | Renesas
ISL26325FVZ-T

ISL26325FVZ-T - 12-bit 250kSPS 4-Ch SAR ADC | Renesas

The Renesas ISL26325FVZ-T is a 12-bit, 250 kSPS, low-power successive-approximation register (SAR) analog-to-digital converter with four single-ended or differential input channels and an SPI-compatible serial interface, housed in a 16-pin TSSOP package. Headline parameters include 12-bit resolution, 250 kSPS sampling rate, four input channels, and a TSSOP-16 outline that fits compact data-acquisition layouts. A SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm with an internal capacitive DAC and a high-speed comparator to produce one conversion result per acquisition cycle. SAR ADCs sit within the broader hierarchy of ADC architectures (flash, SAR, sigma-delta, and pipeline), and are favored for moderate-resolution, moderate-speed, low-latency conversions where deterministic behavior and excellent DC linearity are required. The ISL26325FVZ-T belongs to the data-acquisition and precision-converter category of mixed-signal ICs. Key features include four software-configurable input channels accepting single-ended or differential signals, an SPI-compatible serial data interface, an auto power-down mode that reduces supply current to 8 µA typical between conversions, and total power consumption of 15 mW at the full 250 kSPS sampling rate. The wide supply range and integrated input multiplexer simplify front-end analog design in multiplexed sensor applications. Technically, the device operates from a single analog supply, integrates a high-accuracy internal reference path, and delivers excellent linearity over the full operating range. The SAR core architecture provides no pipeline latency, so each conversion result is available immediately after the requested sample instant - an important property in closed-loop control and multiplexed data acquisition. Typical applications include industrial process control and instrumentation, multichannel sensor monitoring, battery management system telemetry, factory-automation analog front ends, and portable medical or measurement equipment that needs low standby current between scans. When designing with this part, ensure the analog supply is well-decoupled close to the IC and that the SPI clock speed respects the SAR conversion timing budget; verify that auto-power-down timing matches your scan-cycle schedule to maximize energy savings. This page synthesizes distributor pricing, drop-in TSSOP-16 alternatives, and practical design guidance not aggregated in the manufacturer datasheet.

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ISL26325FVZ-T7A - 12-bit 250kSPS 4-ch SAR ADC | Renesas
ISL26325FVZ-T7A

ISL26325FVZ-T7A - 12-bit 250kSPS 4-ch SAR ADC | Renesas

The Renesas (formerly Intersil) ISL26325FVZ-T7A is a 12-bit, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with 4 single-ended or differential input channels, housed in a 16-pin TSSOP package. It operates from a 2.7 V to 5.5 V analog supply, supports an external reference up to AVDD, and draws a typical supply current of 1.9 mA at 250 kSPS, with a power-down mode that drops current to a few hundred nanoamps for battery-friendly duty-cycled measurements. An SAR ADC is a Nyquist-rate converter that performs a binary search on the analog input using an internal capacitive DAC and comparator. Unlike sigma-delta ADCs, SAR converters deliver a single conversion per acquisition with no pipeline latency, making them ideal for multiplexed multi-channel data-acquisition systems where deterministic latency and fast channel-to-channel settling matter. SAR parts slot into the hierarchy analog-to-digital converter -> data converter -> signal-chain IC -> mixed-signal semiconductor. Key features of the ISL26325FVZ include ±1 LSB INL (typical), a true 12-bit no-missing-codes guarantee, a serial SPI-/QSPI-/MICROWIRE-compatible interface, and a proprietary input multiplexer with integrated input buffer amplifier that reduces the external driver requirements. The part accepts single-ended inputs in the range 0 V to AVDD and differential inputs in the range -AVDD to +AVDD, supporting bipolar signal swings around a common-mode voltage. Typical applications span industrial process control, multi-loop programmable logic controllers (PLC) analog front ends, portable instrumentation, battery-powered sensor hubs, 4-wire RTD / thermocouple digitizers, and general-purpose data-acquisition cards. The wide supply range, low power, and small TSSOP-16 footprint also make the device attractive in compact embedded designs where board area and quiescent current are at a premium. When designing with the ISL26325FVZ, choose the analog input capacitor and external reference capacitor per the application note recommendations for AC performance, place the AVSS and DGND ground returns on a low-impedance ground plane, and verify the SCLK idle level matches the chosen SPI mode (CPOL/CPHA) of the host microcontroller. Decouple AVDD and DVDD with separate 10 µF + 0.1 µF pairs to keep digital switching transients out of the analog reference. This page synthesizes distributor pricing (as of 2026-10-13), drop-in alternatives, comparison parameters, and design notes not collated in the manufacturer datasheet alone, giving engineers a single reference for sourcing and second-sourcing decisions on the ISL26325 family.

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ISL26329FVZ-T - 12-bit 250kSPS SAR ADC 8-Ch | Renesas
ISL26329FVZ-T

ISL26329FVZ-T - 12-bit 250kSPS SAR ADC 8-Ch | Renesas

The Renesas (formerly Intersil) ISL26329FVZ-T is a 12-bit, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with 8 single-ended input channels (or 4 differential) and a serial interface, supplied in a 16-pin TSSOP package. The -T suffix denotes tape-and-reel packaging, and the device operates from a single 2.7 V to 5.25 V analog supply while drawing very low quiescent current, targeting battery and industrial measurement systems. A SAR ADC is a successive-approximation analog-to-digital converter that uses a binary-search algorithm and an internal capacitive DAC to convert each analog sample in N clock cycles, where N is the resolution in bits. SAR converters offer deterministic latency, no pipeline delay, and excellent DC linearity, which makes them the dominant architecture for multiplexed multi-channel data-acquisition front ends in the 10-16 bit, 1 kSPS to 1 MSPS range. The ISL26329FVZ-T sits in the middle of that range as a low-power, multi-channel SAR ADC for general-purpose signal acquisition. Key features include 12-bit resolution with no missing codes, 250 kSPS throughput, an integrated input multiplexer with 8 single-ended or 4 differential channels, and an input buffer/amplifier that reduces the external drive requirements. The on-chip sequencer allows automatic channel scanning, and the SPI-/QSPI-/MICROWIRE-compatible serial interface simplifies connection to microcontrollers and DSPs. The single-ended input range is 0 V to VREF (or 0 V to AVDD when using AVDD as reference), and the differential input range is -VREF to +VREF. Typical applications include industrial process instrumentation, multi-channel sensor data loggers, battery-powered portable measurement, factory-automation analog front ends, and general-purpose multi-channel data-acquisition boards. The wide supply range (2.7 V to 5.25 V) and low power consumption also suit handheld medical and consumer measurement devices. When designing with this part, place a 100 nF decoupling capacitor close to each supply pin and follow the datasheet's PCB layout guidelines for the analog and digital grounds. The reference voltage input directly determines absolute accuracy, and the input multiplexer settling time must be respected when scanning channels at full throughput. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers shorten selection time and avoid common pitfalls when migrating from similar multi-channel SAR ADCs.

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ISL26708IHZ-T - 8-Bit 1MSPS SAR ADC SOT-23-8 | Renesas
ISL26708IHZ-T

ISL26708IHZ-T - 8-Bit 1MSPS SAR ADC SOT-23-8 | Renesas

The Renesas ISL26708IHZ-T is an 8-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter (ADC) housed in an 8-pin SOT-23 package, offered on tape-and-reel. It is the 8-bit member of the ISL26708/ISL26710/ISL26712 SAR ADC family and operates from a single 2.7V to 5.25V analog supply, providing a high-impedance fully-differential input that preserves specified linearity even when input signals swing to the supply rails. The reference voltage accepts inputs from 0V to VDD, enabling ground-referenced single-ended measurements in low-voltage systems. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and an internal capacitive DAC to convert each analog sample to a digital code in one conversion cycle per bit. Within the broader converter hierarchy, SAR converters sit between flash ADCs (fastest, most power) and sigma-delta ADCs (highest resolution, lowest speed). The SAR topology delivers an excellent speed-vs-power trade-off for industrial instrumentation, motor control, and portable data-acquisition front-ends where mid-bandwidth 8-to-12-bit conversion is required. Key features of the ISL26708IHZ-T include 1 MSPS guaranteed throughput with no latency, low integral and differential non-linearity across the full supply and temperature range, an SPI-compatible serial interface, a true-differential analog input with high common-mode rejection, and an operating temperature range suited to industrial environments. The fully-differential input simplifies direct connection to bridge sensors, current-shunt amplifiers, and audio line inputs without external instrumentation amplifiers. The architecture combines a high-impedance track-and-hold front end with a precision charge-redistribution DAC. Each conversion is initiated by the user via the CNVST pin and the result is clocked out on the SDO pin through a standard SPI frame. Power consumption scales linearly with sampling rate, allowing the device to idle at microamp-level standby currents between bursts, which is valuable for battery-powered or duty-cycled applications. Typical applications include industrial process-control analog front ends, portable instrumentation and battery monitors, optical-module monitoring (SFP/QSFP), temperature and pressure sensor digitizers, motor control feedback, and consumer audio metering. The wide supply range (2.7V to 5.25V) covers both 3.3V and 5V rails, and the differential input tolerates ground-referenced or rail-referenced sensor outputs. When designing with this device, place the 0.1uF decoupling capacitor as close as possible to the AVDD pin and keep the analog and digital ground returns separated until they join at a single point beneath the IC. The reference decoupling capacitor value and ESR directly affect AC performance; a low-ESR ceramic on REF is recommended for full 1 MSPS operation. This page synthesizes distributor pricing, drop-in alternatives from Renesas and select competitors, and practical design notes not found in the manufacturer datasheet alone.

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ISL26708IHZ-T7A - 8-Bit 1MSPS SAR ADC | Renesas | SOT-23-8
ISL26708IHZ-T7A

ISL26708IHZ-T7A - 8-Bit 1MSPS SAR ADC | Renesas | SOT-23-8

The Renesas ISL26708IHZ-T7A is an 8-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter housed in an 8-lead SOT-23 package. It operates from a 2.7V to 5.25V analog supply and provides excellent linearity over supply and temperature variations. The fully-differential input architecture presents high input impedance to minimize leakage-induced errors, and the device accepts true bipolar or unipolar input ranges. The part is specified over the -40C to +85C industrial temperature range. A SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm through an internal capacitive DAC to successively approximate the input voltage against a precision reference. SAR ADCs offer the best combination of throughput, latency, and power consumption for multiplexed data acquisition, motor control, and instrumentation front-ends where a single conversion result must be captured per trigger without the pipeline delay of higher-speed architectures. Key features of the ISL26708IHZ-T7A include 1 MSPS minimum throughput, no missing codes at 8-bit resolution, low power consumption (approximately 8.5 mW at 1 MSPS with 5V supply), a SPI/QSPI/MICROWIRE-compatible serial interface, and a true-differential analog input that supports ±VREF common-mode. An external reference voltage (1V to 5V) sets the input full-scale range, giving designers flexibility to optimize dynamic range. The robust input structure, wide supply tolerance, and small SOT-23-8 footprint make the ISL26708IHZ-T7A well-suited for portable instrumentation, industrial process control loops, sensor signal conditioning, and battery-monitoring front-ends. Its differential input rejects common-mode noise present in long sensor cable runs. When designing with this device, place the 0.1 uF and 10 uF decoupling capacitors as close as possible to the AVDD and DVDD pins to ensure conversion accuracy, and route the analog and digital ground returns to a single-point star ground near the ADC's GND pin to avoid digital switching noise coupling into the analog input. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ISL26708IRTZ-T7A - 8-Bit 1MSPS SAR ADC, 8-TDFN | Renesas
ISL26708IRTZ-T7A

ISL26708IRTZ-T7A - 8-Bit 1MSPS SAR ADC, 8-TDFN | Renesas

The Renesas ISL26708IRTZ-T7A is an 8-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter supplied in an 8-lead TDFN-EP (3 mm x 3 mm) package with an exposed thermal pad. It operates from a single 2.7 V to 5.25 V analog supply and integrates a low-noise track-and-hold, precision reference input, and a high-speed serial interface. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and an internal capacitive DAC to convert an analog input to a digital code in one conversion cycle per bit. SAR ADCs combine high throughput (often hundreds of kSPS to multi-MSPS) with deterministic latency and excellent DC accuracy - placing them in the broader taxonomy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Key features include 1 MSPS throughput, ±1 LSB INL/DNL (typical), a SPI-/QSPI-/MICROWIRE-compatible serial interface, low 8 mW power dissipation at 1 MSPS with 3 V supply, and a 2.5 V reference input accepting external references for system-level gain trim. The wide supply range allows direct interfacing to 3.3 V and 5 V microcontrollers or DSPs without level translators. An exposed thermal pad (EP) reduces junction-to-ambient thermal resistance, which is important for sustained 1 MSPS operation at elevated ambient temperatures. The converter is built on a BiCMOS process that pairs a precision analog front-end with a small-footprint serial host interface, delivering low total harmonic distortion at full Nyquist input while keeping quiescent supply current modest in partial-power-down and full-power-down modes. Typical applications include industrial process control loop readouts, multi-channel data-acquisition front ends, optical-module monitor photodiodes, and precision sensor conditioning where deterministic latency and small PCB area matter. An end-of-conversion (EOC) flag and dedicated CNVST rising-edge conversion control simplify DMA hand-off and oversampling schemes in embedded designs. When designing with the ISL26708, allocate the analog and digital ground planes as a single star-ground tied under the EP, and bypass AVDD and DVDD independently with 10 uF bulk plus 100 nF high-frequency ceramic capacitors within 5 mm of the pins. This page bundles distributor pricing, drop-in alternates, application examples, and design notes curated for engineers evaluating SAR ADCs in industrial, sensor, and instrumentation designs.

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ISL2671286IBZ-T - 12-Bit 20kSPS SAR ADC | Renesas
ISL2671286IBZ-T

ISL2671286IBZ-T - 12-Bit 20kSPS SAR ADC | Renesas

The Renesas ISL2671286IBZ-T is a 12-bit, 20kSPS successive-approximation-register (SAR) analog-to-digital converter supplied in an 8-pin SOIC package and qualified for the -40C to +85C industrial temperature range. It offers a single differential input channel, an SPI-compatible serial interface, and operates from a single +5V analog supply. The device features excellent linearity over supply and temperature variations and is designed as a drop-in compatible alternative to all ADS1286 performance grades. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm against an internal precision DAC to digitize an analog input in N conversion cycles for an N-bit code. SAR ADCs are favored for low-latency, single-shot conversions with no pipeline delay, and they offer excellent static linearity because every conversion uses the same precision comparator and DAC. In the broader data-converter hierarchy, SAR ADCs sit alongside delta-sigma and pipeline ADCs as the three dominant precision ADC architectures; SAR specifically targets multiplexed, multiplexed low-channel-count precision sampling up to a few megasamples per second. Key features include a true-differential analog input, integrated track-and-hold, low power consumption suitable for battery-powered or loop-powered instruments, and an SPI/QSPI/MICROWIRE-compatible serial output interface. The 8-SOIC package is industry-standard, allowing straightforward PCB layout and easy drop-in replacement of legacy ADS1286 designs. The wide operating range and high linearity make the part suitable for industrial environments where supply and temperature variation would otherwise compromise measurement accuracy. Typical applications include industrial process control loop transmitters, weigh-scale and load-cell digitizers, portable instrumentation, programmable logic controller (PLC) analog input modules, and battery monitoring systems. Designers select this ADC when a single-channel, low-latency, high-linearity conversion is required at sample rates up to 20 kSPS without the complexity of a multi-channel converter. When designing with this part, pay attention to the analog input common-mode voltage and provide adequate input RC filtering to limit broadband noise. According to the manufacturer datasheet, the part provides a drop-in compatible alternative to all ADS1286 grades, meaning existing ADS1286 PCB layouts can be reused without modification. This page synthesizes distributor pricing, parametric alternatives, and practical design notes that go beyond the manufacturer datasheet.

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ISL26712IHZ-T - 12-bit 1MSPS SAR ADC | Renesas | SOT-23-8
ISL26712IHZ-T

ISL26712IHZ-T - 12-bit 1MSPS SAR ADC | Renesas | SOT-23-8

The Renesas ISL26712IHZ-T is a 12-bit, 1MSPS sampling SAR-type analog-to-digital converter housed in an 8-pin SOT-23 surface-mount package. It pairs true-differential input architecture with low power consumption, achieving ±1 LSB INL across the industrial temperature range while operating from a single 2.7V to 5.25V supply. A successive-approximation register (SAR) ADC is a converter architecture that performs a binary search across an internal precision DAC during each conversion cycle. Within the converter hierarchy, SAR ADCs sit between high-speed flash converters and high-resolution sigma-delta ADCs, providing an optimal mix of speed (up to multi-MSPS) and resolution (8-18 bits) for general-purpose data acquisition. The ISL26712 belongs to Renesas's precision-SAR family designed for industrial instrumentation, process control, and battery-powered sensing. Key features include 12-bit resolution with no missing codes, throughput up to 1MSPS, fully differential analog inputs with high input impedance to minimize leakage-induced errors, a wide 2.7V-5.25V analog supply range, and an SPI/QSPI/MICROWIRE-compatible serial interface. The internal reference can be overdriven by an external VREF for absolute-accuracy applications. Robust ESD ratings (HBM 4kV, CDM 1.5kV) and a -40C to +85C industrial operating range support demanding field-deployed instrumentation. The ISL26712 uses a charge-redistribution DAC with input sampling on internal capacitors, achieving excellent linearity across temperature and supply variations. The robust sampling front-end tolerates input signals up to the supply rails without linearity degradation, and the simple CS/SHDN-controlled conversion start simplifies MCU/DSP handshaking without complex sequencer overhead. Typical applications include industrial process control loops, weight scales and load-cell digitizers, portable instrumentation, motor-control current sensing, temperature-measurement systems using thermocouples or RTDs, and data acquisition front-ends. The 1MSPS throughput also supports digital oscilloscope front-ends and feedback-loop digitizers inside switching power converters. When designing with this device, place the 0.1uF VREF bypass capacitor as close as possible to the VREF pin and provide a clean ground return separate from noisy digital returns to preserve AC performance. Series resistance between the input source and the +IN/-IN pins should be kept below 50 ohm to avoid conversion-time-induced gain error. This page synthesizes distributor pricing, drop-in alternatives from the same Renesas/Intersil SAR family, and practical layout notes not consolidated in the manufacturer datasheet.

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ISL26712IHZ-T7A - 12-Bit 1MSPS SAR ADC | SOT-23-8 | Renesas
ISL26712IHZ-T7A

ISL26712IHZ-T7A - 12-Bit 1MSPS SAR ADC | SOT-23-8 | Renesas

The Renesas ISL26712IHZ-T7A is a 12-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter housed in an 8-pin SOT-23 package. It accepts a single fully-differential input, operates from a 2.7 V to 5.25 V analog supply, and draws only 4.6 mW of power at 1 MSPS with a 5 V supply. The converter uses an SPI-compatible serial interface for configuration and data readout, allowing easy connection to microcontrollers, FPGAs, and DSPs in space-constrained designs. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a sampling ADC architecture that converts an input voltage to a digital code by performing a binary search against a precision internal DAC. SAR ADCs offer deterministic latency, low power consumption, and excellent linearity, making them the architecture of choice for industrial process control, multi-channel data-acquisition systems, battery-powered instrumentation, and precision sensor front-ends. They sit in the hierarchy of: ADC -> data converter -> mixed-signal IC -> semiconductor. Key features of the ISL26712IHZ-T7A include 1 MSPS sampling rate on a single channel, fully-differential input, internal oscillator, low 4.6 mW power at full throughput, and a single 2.7 V to 5.25 V supply. The 8-pin SOT-23 footprint is one of the smallest in this speed/resolution class and is well suited to tight sensor boards. The ISL26712IHZ-T7A shares its silicon with the 10-bit ISL26710 and 8-bit ISL26708 family members, and the -T7A suffix denotes a 250-piece tape-and-reel reel for prototyping and medium-volume assembly. The architecture uses a charge-redistribution DAC and on-chip sample-and-hold, achieving excellent AC and DC performance without an external reference bypass capacitor in most applications. Typical applications include industrial process control loops (4-20 mA inputs read through a resistor), portable medical instrumentation (electrochemical sensors, pulse oximeters), handheld test equipment, factory-automation sensor modules, and consumer audio front-ends. Differential inputs let designers reject common-mode noise picked up by long sensor cables. A key design trade-off to remember is that the ISL26712IHZ-T7A is single-channel and differential-only; systems requiring multiple single-ended channels should add an external analog MUX in front of the ADC. The SOT-23-8 thermal envelope is also small, so heat dissipation in high-temperature environments must be checked against the 4.6 mW dissipation at 1 MSPS with 5 V supply. This page synthesizes distributor pricing, drop-in alternatives, comparison tables and design notes not assembled in the manufacturer datasheet alone, helping engineers shortlist the right 1 MSPS SAR ADC for production.

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ISL267450AIHZ-T - 12-Bit 1MSPS SAR ADC | SOT-23-8 | Renesas
ISL267450AIHZ-T

ISL267450AIHZ-T - 12-Bit 1MSPS SAR ADC | SOT-23-8 | Renesas

The Renesas ISL267450AIHZ-T is a 12-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter with one input channel, housed in a compact 8-pin SOT-23-8 package. Operating from a 2.7 V to 5.25 V analog supply, it delivers 12-bit resolution at up to 1 million samples per second, with industrial-grade screening from -40 C to +85 C. The device is drop-in pin-compatible with its 10-bit sibling ISL267440 within the same family. A SAR ADC is a type of data converter that uses a binary-search successive-approximation algorithm against an internal capacitive DAC to digitize an analog input. SAR ADCs occupy the middle ground between slow, high-accuracy delta-sigma converters and fast, lower-resolution flash converters, making them the workhorse for general-purpose industrial, instrumentation, and process-control sampling where both speed and precision matter in a small footprint. The ISL267450AIHZ-T features excellent linearity over supply and temperature variations, an integrated low-drift internal reference option, and a simple SPI-compatible serial interface that minimizes GPIO usage on the host microcontroller. Its SOT-23-8 footprint occupies roughly 9 mm² of board area, allowing it to be placed adjacent to the signal source for short, clean analog traces. The wide 2.7 V to 5.25 V supply range lets it accept a 3.3 V or 5 V rail directly, simplifying power-tree design. Typical applications include multi-channel data-acquisition front ends, sensor-signal digitization for industrial process control, portable instrumentation, and battery-management monitoring subsystems. Its combination of 1 MSPS throughput and 12-bit accuracy makes it a strong fit for sampling current-sense amplifiers, thermocouple-conditioned signals, and strain-gauge bridge outputs. When designing with this part, keep analog and digital ground returns separated and joined at a single point near the IC, and place the decoupling capacitor within 2 mm of the supply pin. This page synthesizes distributor pricing, drop-in alternatives, and practical guidance not found in the manufacturer datasheet alone.

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ISL267450AIHZ-T7A - 12-bit 1MSPS SAR ADC | Renesas | SOT-23-8
ISL267450AIHZ-T7A

ISL267450AIHZ-T7A - 12-bit 1MSPS SAR ADC | Renesas | SOT-23-8

The Renesas (formerly Intersil) ISL267450AIHZ-T7A is a 12-bit, 1 MSPS successive-approximation register (SAR) analog-to-digital converter with one pseudo-differential input channel, housed in an 8-pin SOT-23 surface-mount package. The -T7A suffix indicates a 250-piece, 7-inch tape-and-reel packaging option qualified for industrial-temperature (-40C to +85C) operation, with the device delivering 1 Msamples per second conversion throughput from a single +4.75V to +5.25V analog supply and a separate 2.5V reference. What is a SAR ADC? A successive-approximation register analog-to-digital converter is a sampling ADC architecture that performs one conversion by comparing the sampled input against a binary-weighted reference ladder, bit-by-bit, in N clock cycles for N bits of resolution. SAR ADCs sit in the hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. They offer deterministic low-latency conversion (no pipeline delay), excellent DC linearity, and are well-suited for multiplexed data-acquisition, instrumentation, and process-control front-ends where both DC accuracy and clean dynamic performance are required. Key features of the ISL267450AIHZ-T7A include 12-bit no-missing-codes performance, an integrated input track-and-hold, a high-speed SPI-/QSPI-/MICROWIRE-compatible serial interface, and excellent linearity over supply and temperature variations. The pinout is drop-in compatible with the ISL267440 (10-bit version), enabling system-level resolution scaling without PCB rework. The device accepts an external reference up to VDD, allowing designers to optimize dynamic range against the input signal amplitude. The ISL267450AIHZ uses a charge-redistribution SAR core with an auto-zeroing input front end to minimize offset and drift. It includes a serial data-output clock edge that simplifies isolated-barrier or opto-coupled data-acquisition front ends. The single 5V supply rail simplifies system power, while the small SOT-23-8 footprint suits compact, dense PCB layouts where conventional QFN or SOIC ADC packages are too large. Typical applications include industrial process-control analog input modules, multi-channel data-acquisition systems, portable battery-powered instrumentation, optical-sensor front ends, and precision sensor-signal digitization. Its wide operating range and small package also fit medical-monitoring accessory boards and energy-monitoring (energy-harvesting metering) designs. A key design consideration is reference decoupling: place a low-ESR 10 uF tantalum or ceramic bypass directly on the REF pin with a 0.1 uF ceramic in parallel to preserve linearity at 1 MSPS. Route the digital outputs away from the analog input traces to minimize digital-coupling noise; even though the SOT-23 package keeps the part compact, the input signal integrity and reference stability dictate achievable SNR. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the bare manufacturer datasheet, giving engineers a single source for comparing 12-bit, 1 MSPS SAR ADCs from Renesas, Texas Instruments, and Analog Devices in the SOT-23-8 footprint.

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ISL267450AIUZ-T - 12-Bit 1MSPS SAR ADC | Renesas | MSOP-8
ISL267450AIUZ-T

ISL267450AIUZ-T - 12-Bit 1MSPS SAR ADC | Renesas | MSOP-8

The Renesas ISL267450AIUZ-T is a 12-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter in an 8-pin MSOP package. It features a single-ended analog input, an SPI/QSPI/MICROWIRE-compatible serial interface, and excellent linearity over supply and temperature variations. The part operates from a 2.7 V to 5.25 V analog supply, draws only 4.2 mW at 1 MSPS with a 3 V supply, and is offered in the -40 °C to +85 °C industrial temperature range. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that performs a binary search through successive bit trials to resolve an analog input into a digital code. SAR ADCs sit in the broader hierarchy of data converter -> ADC -> Nyquist-rate converter -> SAR architecture, where they are valued for zero-latency conversion, low power consumption, and deterministic behavior, making them a preferred choice for multiplexed data acquisition and precision industrial sensing. Key features of the ISL267450AIUZ-T include a 12-bit resolution with no missing codes, a single 2.7 V to 5.25 V supply, an SPI/QSPI/MICROWIRE-compatible serial data interface, an integrated track-and-hold amplifier, and very low power dissipation. Per the manufacturer datasheet, the device is drop-in pin-compatible with the AD7450A from Analog Devices, simplifying migration paths for new and existing designs. Architecturally, the ISL267450AIUZ-T combines a charge-redistribution DAC with a high-speed comparator and SAR control logic on a single CMOS die. The internal reference voltage is 2.5 V, while the analog input accepts a 0 V to VREF unipolar range. Power-down current drops to 1 µA between conversions, an important figure for battery-operated instruments that sample on demand. Typical applications include remote industrial sensors, battery-powered instrumentation, portable data loggers, and process control front ends. The combination of 1 MSPS throughput, low power, and small MSOP-8 footprint also makes it attractive for medical patient monitoring and energy harvesting sensor nodes. When designing with this ADC, allocate at least one 10 nF bypass capacitor close to the AVDD pin and route the analog and digital grounds as a star-connected pattern to avoid code-dependent noise coupling. Because it is a 1 MSPS SAR, settle the input amplifier to better than 12-bit accuracy within the acquisition window. This page synthesizes distributor pricing, drop-in compatible alternatives, and engineering design guidance not found in a single source - useful for engineers who need to evaluate, qualify, and second-source the ISL267450AIUZ-T in production designs.

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ISL267450IUZ-T7A - 12-Bit 1MSPS SAR ADC, MSOP-8 | Renesas
ISL267450IUZ-T7A

ISL267450IUZ-T7A - 12-Bit 1MSPS SAR ADC, MSOP-8 | Renesas

The Renesas ISL267450IUZ-T7A is a 12-bit, 1MSPS successive-approximation-register (SAR) analog-to-digital converter housed in an 8-pin MSOP package with a differential input span of 2*VREF volts. It operates from a single 2.7V to 5.25V supply, supports a -40C to +85C industrial temperature range, and is specified as a drop-in replacement for the AD7450. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm against an internal DAC to resolve each conversion in N clock cycles for an N-bit output. SAR ADCs occupy the middle ground between flash ADCs (fast, power-hungry, expensive) and sigma-delta ADCs (slow, very high resolution). They are favored in industrial data acquisition, motor control feedback loops, and instrumentation where single-shot latency, deterministic sampling, and moderate sample rates (100kSPS to 10MSPS) are required. The ISL267450IUZ-T7A sits in the 1MSPS class - the workhorse rate for multiplexed multi-channel systems. Key features include 12-bit resolution with no missing codes, 1MSPS throughput, differential input range of 2*VREF, integrated reference, SPI/QSPI/MICROWIRE-compatible serial interface, and low power dissipation (typically under 10mW at 1MSPS). The device maintains excellent linearity over supply and temperature variations, with integral nonlinearity (INL) and differential nonlinearity (DNL) performance that suits precision measurement. The MSOP-8 footprint is pin-compatible with the legacy AD7450 and the AD7450A, simplifying board-level substitution. Typical applications include industrial process control, multi-channel data acquisition systems, portable instrumentation, battery-powered monitoring, and motor control position feedback. The 2.7V to 5.25V supply range covers both 3.3V and 5V analog rails found in mixed-signal embedded designs. When designing with the ISL267450IUZ-T7A, observe the datasheet's input common-mode and reference decoupling guidelines. A 10uF tantalum plus 0.1uF ceramic bypass network close to the supply pin is recommended for low-noise operation. The serial interface timing budget must allow for 13 SCLK cycles per conversion at full throughput. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes that complement - not duplicate - the manufacturer datasheet content for engineers evaluating the ISL267450IUZ-T7A.

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ISL267452IHZ-T7A - 12-Bit 555kSPS SAR ADC | Renesas
ISL267452IHZ-T7A

ISL267452IHZ-T7A - 12-Bit 555kSPS SAR ADC | Renesas

The Renesas ISL267452IHZ-T7A is a 12-bit, 555 kSPS successive-approximation-register (SAR) analog-to-digital converter in an 8-pin SOT-23 package. Per the Renesas datasheet, the part features a single-ended/fully-differential input, operates from a 2.7 V to 5.25 V analog supply, and is rated for the -40 C to +85 C industrial temperature range. The -T7A suffix denotes a 250-piece tape-and-reel packing option aimed at low-volume prototyping and small production runs. A SAR ADC is a successive-approximation-register analog-to-digital converter. It uses an internal binary-search algorithm with a single comparator and a charge-redistribution DAC to digitize an analog input one code at a time, achieving excellent DC accuracy and very low latency (one conversion cycle) compared to delta-sigma or pipelined converters. SAR ADCs belong to the data-converter family alongside delta-sigma ADCs, pipeline ADCs, and flash ADCs, and they sit inside the broader mixed-signal IC hierarchy under signal conditioning and data acquisition. Key features include 12-bit resolution with no missing codes, 555 kSPS throughput, low power consumption of approximately 5.2 mW at 555 kSPS, an SPI/QSPI/MICROWIRE-compatible serial interface, and true-differential analog inputs that maintain specified accuracy for input signals up to the supply rails. The high-impedance analog input structure minimizes leakage-induced errors in high-impedance source applications such as sensor front-ends. The architecture is based on a charge-redistribution SAR core with on-chip track-and-hold. Renesas states the part is pin-compatible with the legacy AD7452 from Analog Devices, allowing it to serve as a drop-in second-source. The single-supply 2.7 V minimum operation makes it well suited to 3.3 V and 5 V microcontroller-based systems without requiring additional negative rails. Typical applications include industrial process control, portable instrumentation, data acquisition systems, battery-powered monitoring, and optical sensor front-ends. The combination of small SOT-23-8 footprint, 555 kSPS speed, and 12-bit accuracy makes it ideal where board area is constrained and full pipeline ADC speed is not required. When designing with this part, ensure the analog input common-mode voltage stays within the specified range and provide a low-impedance reference (such as a 10 uF ceramic bypass on REF) to avoid conversion noise. The SOT-23-8 thermal envelope is more than adequate for the 5.2 mW dissipation, so no special thermal management is needed. This page synthesizes distributor pricing from DigiKey, Mouser, and Octopart, drop-in and same-package alternatives, and practical design notes for the ISL267452 family that go beyond what is in the manufacturer datasheet alone.

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ISL3172EIUZ - 3.3V RS-485/RS-422 Transceiver, 1/8 Unit Load | Renesas
ISL3172EIUZ

ISL3172EIUZ - 3.3V RS-485/RS-422 Transceiver, 1/8 Unit Load | Renesas

The Renesas ISL3172EIUZ is a 3.3V-powered, ±15kV IEC61000-4-2 ESD-protected single transceiver that meets both the RS-485 and RS-422 standards for balanced communication, presented in an 8-pin MSOP package (UZ suffix). The device integrates one driver and one receiver, supports half-duplex operation, and presents only a 1/8 unit load (125 µA/-100 µA bus current) to the RS-485 bus, allowing up to 256 transceivers on the same network without violating the RS-485 32-unit-load maximum when properly accounted by network designers. An RS-485/RS-422 transceiver is a line driver/receiver IC that converts logic-level UART or GPIO signals into the differential voltage levels required for robust, long-distance, noise-immune serial communication over twisted-pair cabling. Within the broader hierarchy, the ISL3172EIUZ sits under Interface ICs > RS-485/RS-422 Transceivers > Differential Transceivers > Power Management and Signal Conditioning chain, serving as the physical-layer bridge between a microcontroller UART and the differential bus. Key differentiating features include ±15kV ESD protection on the bus pins per the IEC 61000-4-2 contact-discharge model, true 1/8 unit loading for fan-out-intensive multipoint networks, full fail-safe receiver design guaranteeing a logic-high output when the bus is floating, shorted, or idle-terminated, and selectable data rates optimized for either high-speed or slew-rate-limited operation to minimize EMI in motor and process-control cabling. The low quiescent current and 3V-to-3.6V single-supply operation simplify interfacing with 3.3V MCUs without level shifters. Internally the device uses a differential line driver with slew-rate control and a precision differential receiver with hysteresis. The fail-safe architecture combines open-circuit, shorted-bus, and idle-bus detection so that a noise pulse on an idle line cannot corrupt the UART's RX input, a common field-installation failure mode in industrial RS-485 links. Typical applications include factory-floor PLC networks, building-automation daisy chains, long-run utility metering busses, point-of-sale terminal interconnects, and any industrial or instrumentation design where 256-node multipoint RS-485 networking is required. The MSOP-8 footprint also suits space-limited embedded designs. A primary design consideration is bus termination: place a 120 Ω resistor across each cable end only, never mid-bus, and use fail-safe biasing at one location. For EMI, choose the slew-rate-limited variant for cables longer than 10 m to keep rise times inside the RS-485 30%-to-70% duty-cycle specification. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical EMC/fail-safe design notes not consolidated on the manufacturer datasheet alone.

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ISL3172EIUZ-T - ±15kV ESD, 3.3V RS-485/422 Transceiver | Renesas
ISL3172EIUZ-T

ISL3172EIUZ-T - ±15kV ESD, 3.3V RS-485/422 Transceiver | Renesas

The Renesas ISL3172EIUZ-T is a ±15kV IEC61000-4-2 ESD-protected, 3.3V-powered, half-duplex RS-485/RS-422 transceiver with one driver and one receiver channel, housed in an 8-pin MSOP (UZ) package. It operates from a 3.0V to 3.6V supply, supports data rates up to 250 kbps, and consumes a quiescent supply current of roughly 510 µA in active mode. The part presents only a 1/8 unit load on the bus (allowing up to 256 transceivers on the same bus) and integrates ±15 kV HBM ESD protection directly on the bus pins. A transceiver of this category, also called an RS-485/RS-422 line driver/receiver, is an interface IC that translates logic-level UART signals from a microcontroller into differential voltages suitable for transmission over twisted-pair cable, while simultaneously converting incoming differential signals back to logic levels. It sits in the signal-chain hierarchy between the protocol controller (UART) and the physical medium (twisted pair), forming part of the broader Interface IC > Line Driver/Receiver family in the wired-communication domain. This kind of low-power, high-ESD part is the modern workhorse for industrial fieldbus networks, replacing older ±2 kV parts in factory and process-control deployments. Key features of the ISL3172EIUZ-T include ±15 kV HBM ESD protection on the bus pins, true 1/8 unit load (allowing 256 nodes on one bus), full fail-safe receiver outputs (logic-high when the bus is open, shorted, or idle), low bus currents of +125 µA/-100 µA, thermal-shutdown and current-limit protection, and an active-high driver enable pin. The receiver also features a wide common-mode range from -7 V to +12 V, tolerating large ground-potential differences between nodes. Internally, the part uses a 3.3V CMOS driver stage with slew-rate-limited output edges (as marked in the datasheet family — the speed variants differ), reducing EMI and reflections on unterminated cables. The full fail-safe design guarantees a deterministic logic-high output when the differential input voltage VA-B drops below the -50 mV threshold (open, shorted, or terminated-but-idle). Hot-plug circuitry prevents false transitions on the bus when the device is connected to an active network. Typical applications include industrial fieldbus networks (Modbus RTU, Profibus DP segments, BACnet MS/TP), building automation (lighting, HVAC, access-control panels), long-cable point-of-sale and kiosk equipment, solar inverter daisy-chains, and any RS-485 multi-drop network requiring robust ESD immunity in harsh electrical environments. When designing with this part, place 100 nF decoupling close to VCC and add a 1 nF to 10 nF safety capacitor across the bus pins for additional ESD hardening in IEC 61000-4-2 air-discharge events. Terminate the bus with a 120 Ω resistor at each end only when running at the upper data-rate limit; for low-speed (<115 kbps) networks, termination is often unnecessary. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, optimized for engineers selecting a ±15 kV ESD-rated, 3.3V RS-485 transceiver for industrial multi-drop networks.

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