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MCP3008-I/P - 10-Bit 8-Channel 200ksps ADC | Microchip
MCP3008-I/P

MCP3008-I/P - 10-Bit 8-Channel 200ksps ADC | Microchip

The Microchip Technology MCP3008-I/P is a 10-bit, eight-channel successive-approximation analog-to-digital converter with a 200 ksps sampling rate, SPI serial interface, and a 16-pin PDIP package. It supports eight single-ended inputs or four pseudo-differential input pairs within a 2.7 V to 5.5 V supply range. An ADC converts an analog voltage into a numeric value for processing by a microcontroller or other digital controller. The MCP3008 belongs to the SAR ADC hierarchy and includes an on-chip sample-and-hold circuit, making it suitable for embedded measurement systems that need moderate speed and resolution without a complex high-resolution converter. Key features include 10-bit resolution, eight programmable analog inputs, four pseudo-differential channels, SPI-compatible communication, and operation from 2.7 V to 5.5 V. The verified product listing identifies a maximum conversion rate of 200 kSPS, while the listed operating temperature range is -40°C to +85°C. Input channels can be configured for single-ended sampling or paired pseudo-differential measurements. The MCP3008 uses successive approximation to acquire an analog input and present the result through its serial interface. Its 16-pin PDIP format is useful for prototyping, through-hole educational projects, and systems where a socketed DIP package is preferred. The device also supports low-power operation, making it relevant to battery-powered embedded control applications. Typical uses include Raspberry Pi analog sensor interfaces, temperature and potentiometer measurement, industrial control panels, light-to-digital sensing, and general embedded data acquisition. The SPI interface allows a host controller to select an input channel and read the conversion result without using a parallel data bus. A key design consideration is the reference voltage. The ADC conversion scale depends on the supplied reference and supply arrangement, so analog signal range, grounding, decoupling, and SPI wiring should be checked against the manufacturer datasheet. This page combines verified manufacturer and distributor information with practical integration guidance for engineers.

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MCP3008-I/SL - 8-Ch 10-Bit SAR ADC, SPI, SOIC-16 | Microchip
MCP3008-I/SL

MCP3008-I/SL - 8-Ch 10-Bit SAR ADC, SPI, SOIC-16 | Microchip

The Microchip Technology MCP3008-I/SL is a 10-bit successive-approximation-register (SAR) analog-to-digital converter with 8 input channels and an SPI-compatible serial output, housed in a 16-pin narrow-body SOIC (SL) package rated for the industrial temperature range. It operates from a single 2.7 V to 5.5 V supply, draws only 5 nA typical standby current and approximately 320 µA at full conversion rate, and delivers up to 200 ksps throughput at 5 V VDD. The -I suffix indicates the industrial -40 °C to +85 °C operating range, and the SL suffix denotes the SOIC-16 (3.90 mm body) package. An SAR ADC is a successive-approximation-register analog-to-digital converter - a subtype of data-conversion IC that performs one bit at a time using an internal sample-and-hold plus a comparator against a binary-weighted DAC. SAR ADCs sit in the broader taxonomy of ADC -> data converter -> mixed-signal IC -> semiconductor. Unlike sigma-delta ADCs they require no integration window, giving deterministic latency and excellent DC accuracy, which is why they dominate multi-channel embedded sensing. Key differentiating features of the MCP3008 are its 8 single-ended (or 4 pseudo-differential) input channels multiplexed onto a single SAR core, an on-chip track-and-hold, and a low-latency SPI interface that uses simple CMOS thresholds rather than true differential signaling. The device accepts SPI clocks up to 3.6 MHz at 5 V and 2 MHz at 2.7 V, and consumes just 320 µA typical during continuous conversion. Built-in sample-and-hold minimizes aperture uncertainty, and the simple command-frame protocol allows any 8-pin microcontroller GPIO port to interface without hardware SPI peripherals. Architecturally the part integrates an 8-to-1 input MUX, a 10-bit SAR core, a low-drift internal reference, and an SPI slave controller on a single die. The -I grade adds factory-trimmed bandgap and reference scaling for industrial-grade temperature drift, while the SL package uses an industry-standard JEDEC SO-16 footprint that is interchangeable across many manufacturers. Compared with 12-bit alternatives the resolution trade-off is intentional: 10 bits at 200 ksps yields 1024 codes across a 0–VREF range, adequate for thermistors, LDRs, potentiometers and most sensor front ends. Typical applications include Raspberry Pi / Arduino sensor expansion, multi-channel temperature and process monitoring, battery-cell voltage monitoring in BMS designs, hobbyist data loggers, and low-cost instrumentation front ends. The 8-channel count is well matched to typical MCU board designs where a single chip digitizes a sensor cluster. Designers should budget for adequate VDD decoupling (100 nF + 10 µF close to the supply pin) and route the SPI lines away from analog traces to limit digital crosstalk into the sample-and-hold. The internal reference (≈2.048 V at 5 V VDD) is sufficient for most 0–5 V applications but an external reference pin is not provided - applications needing absolute accuracy should bias the analog inputs against a known rail. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the MCP3008-I/SL for new designs and second-source against cross-brand equivalents.

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MCP3008T-I/SL - 10-Bit 8-Channel SAR ADC | Microchip Technology
MCP3008T-I/SL

MCP3008T-I/SL - 10-Bit 8-Channel SAR ADC | Microchip Technology

Microchip Technology MCP3008T-I/SL is a 10-bit, 8-channel successive-approximation-register analog-to-digital converter with an SPI serial interface, supplied in a 16-pin SOIC package. The device supports 200 ksps conversion operation, a 2.7 V operating supply, programmable single-ended or pseudo-differential analog inputs, and an industrial temperature range of -40 °C to +85 °C. Its four 8-channel conversion modes make it useful for embedded measurement systems requiring multiple analog inputs. An ADC is an interface IC that converts continuously varying analog voltages into digital codes for processing by a microcontroller or other digital controller. The MCP3008 belongs to the SAR ADC family, where an internal sample-and-hold circuit measures an analog input and a successive-approximation conversion cycle produces a digital result. The ADC operates as a serial peripheral, allowing a host processor to configure the input channel and retrieve the result through SPI. The MCP3008T-I/SL provides eight analog input channels and a 10-bit resolution. Its input architecture supports programmable single-ended and pseudo-differential pairs, while on-chip sample-and-hold circuitry helps isolate the conversion process from rapidly changing input conditions. The 200 ksps sample rate is suitable for general-purpose embedded control, sensor acquisition, and industrial monitoring systems that do not require simultaneous sampling. The 16-pin SOIC package supports compact PCB layouts while providing separate SPI interface and supply connections. The MCP3008 is designed for low-power embedded-control applications, with the device family combining a small package, low power consumption, and flexible channel configuration. Its SPI interface allows the ADC to share a serial bus with other compatible peripherals, provided the host observes the required clocking and chip-select behavior. Typical applications include industrial process monitoring, environmental sensing, temperature and pressure measurement, potentiometer position sensing, and general-purpose embedded data acquisition. The four-channel mode can support systems with fewer active inputs, while the eight-channel mode provides higher multiplexing flexibility when many analog sensors must share one ADC. Designers should account for analog-input voltage limits, reference-voltage accuracy, source impedance, grounding, and SPI timing when laying out the circuit. Decoupling capacitors should be placed close to the supply and reference pins, and analog signal routing should remain separate from fast SPI clock traces to minimize conversion noise and timing errors. This page combines manufacturer product information, distributor search results, package details, interface characteristics, application guidance, and replacement considerations to support faster component selection and PCB design. It also provides structured technical comparisons and practical notes for engineers evaluating the MCP3008T-I/SL in embedded ADC designs.

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MCP3201-BI/P - 12-Bit 100 kSPS SPI ADC | Microchip
MCP3201-BI/P

MCP3201-BI/P - 12-Bit 100 kSPS SPI ADC | Microchip

The Microchip Technology MCP3201-BI/P is a 12-bit successive-approximation analog-to-digital converter with a 100 kSPS conversion rate, one pseudo-differential input, and an SPI-compatible serial interface. It operates from a 2.7 V to 5.5 V supply and is packaged in an 8-pin PDIP. The MCP3201-BI/P is suited to embedded control systems that need moderate-resolution, compact, and low-power data acquisition. An ADC is a data-conversion IC that transforms an analog voltage into a numeric value for processing by a microcontroller, DSP, or other digital controller. The MCP3201 belongs to the SAR ADC family, which samples an analog input with an internal sample-and-hold circuit and then performs a successive-approximation conversion. Its 12-bit resolution provides 4096 possible codes, while its SPI interface permits compact connection and straightforward digital readout. Key features include 100 kSPS sampling, a single pseudo-differential input, and differential and integral nonlinearity ratings of ±1 LSB for the MCP3201-B version. The device supports SPI-compatible communication with chip select control. Its 8-pin PDIP package is easy to inspect, prototype, and replace during hardware development, although a surface-mount option may be preferable for compact production assemblies. The SAR architecture provides predictable conversion behavior suitable for process monitoring, control loops, and low-frequency instrumentation. The integrated sample-and-hold circuitry simplifies analog front-end design, but system accuracy still depends on the reference voltage, input-source impedance, grounding, and PCB layout. The MCP3201-BI/P is a single-channel converter, so applications requiring several simultaneous measurements will need multiplexing or additional converters. Typical applications include industrial sensor interfaces, potentiometer and thermistor measurement, process-control instrumentation, battery monitoring, embedded data logging, and general embedded-control boards. Its low-power operation and compact package are particularly useful when analog measurement must be added to a controller without using a higher-cost, higher-channel ADC. For a reliable design, decouple the supply near the device, keep analog traces short and away from switching nodes, and use an input source with sufficiently low impedance for the selected sample rate. Verify the maximum input voltage against the supply level and use the manufacturer datasheet for the complete electrical characteristics and recommended application circuit.

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MCP3201-BI/SN - 12-Bit 100ksps SAR ADC with SPI | Microchip Technology
MCP3201-BI/SN

MCP3201-BI/SN - 12-Bit 100ksps SAR ADC with SPI | Microchip Technology

The Microchip Technology MCP3201-BI/SN is a 12-bit, single-channel successive approximation (SAR) analog-to-digital converter with on-board sample-and-hold circuitry, a pseudo-differential analog input, and an SPI serial interface, packaged in an 8-pin SOIC (SN). It converts at up to 100 ksample/s from a 2.7 V supply while consuming very little power, making it a natural fit for embedded control and sensor-measurement designs. An ADC is a mixed-signal integrated circuit that converts a continuous analog voltage into a digital code that a microcontroller can process. The MCP3201 belongs to the SAR ADC family, the alternative to flash and pipeline converters: a sample-and-hold front end captures the input, an internal DAC generates a comparison voltage, and a successive approximation register walks through 12 clock cycles to settle on a final code. This architecture gives good accuracy at low cost, low power, and no pipeline latency, at the cost of lower throughput than flash converters. Key features include 12-bit resolution with differential nonlinearity specified at plus or minus 1 LSB and integral nonlinearity of plus or minus 1 LSB in the MCP3201-B grade, a 100 ksample/s maximum conversion rate, a pseudo-differential input referenced to a single external voltage reference, and an SPI-compatible serial interface that shares the same clock and data-in lines with SPI flash. Typical conversion time is short enough for continuous sampling in control loops, and typical effective number of bits is 11.8. The MCP3201-BI/SN is specified for industrial temperature operation from -40 degrees C to +85 degrees C, in a narrow-body 8-pin SOIC. The -B suffix denotes the plus or minus 1 LSB INL version, -I denotes industrial temperature grade, and SN denotes the SOIC-8 package. Because the device uses a pseudo-differential input, the negative input pin serves as the reference return, and the converter features a low-noise architecture that suits precision measurement. Typical applications include potentiometer and resistive sensor readout, temperature and pressure transducer front ends, industrial instrumentation, battery-operated portable instruments, and hobbyist or educational SPI ADC breakout boards. The device is frequently paired with 3.3 V microcontrollers such as the MSP430 or STM32 families when a system needs a higher resolution analog measurement than the built-in ADC can deliver. When designing around the MCP3201-BI/SN, keep the analog trace short, place the reference bypass capacitor directly at the VREF+ pin, and route the SPI clock away from the VIN+ trace to avoid injected noise in the least significant bits. A solid ground plane under the analog section and a single-point connection back to the digital ground reduces offset error. Verify the sampling capacitor settling time before the conversion start when driving the input from a high-impedance source. This page combines manufacturer specification data, package and pin details, drop-in ordering alternatives, and practical design guidance so that engineers can evaluate the MCP3201-BI/SN without reconstructing the same information from multiple documents.

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MCP3201-CI/MS - 12-Bit SPI ADC | Microchip Technology
MCP3201-CI/MS

MCP3201-CI/MS - 12-Bit SPI ADC | Microchip Technology

The Microchip Technology MCP3201-CI/MS is a 12-bit successive-approximation analog-to-digital converter with one pseudo-differential input, an SPI serial interface, and a 2.7 V minimum operating supply. It is packaged in an 8-lead MSOP and is supplied as a C-grade, industrial-temperature tape-and-reel configuration. The converter combines an on-board sample-and-hold circuit with a low-power architecture designed for embedded control systems. An analog-to-digital converter, or ADC, converts a continuous analog voltage into a numeric value for processing by a microcontroller or other digital controller. The MCP3201 belongs to the SAR ADC family, whose successive-approximation register architecture repeatedly compares the sampled input with internal references to produce a digital result. Within the broader hierarchy, it is a data-converter IC, an interface IC, and a semiconductor intended for embedded measurement and control. The MCP3201-CI/MS provides 12-bit conversion resolution, a single pseudo-differential input channel, and an SPI-compatible communication interface. Its differential nonlinearity is specified at ±1 LSB, while the C-grade version is specified at ±2 LSB integral nonlinearity. These characteristics make it appropriate for low- to moderate-resolution sensing where a compact converter and serial interface are preferred over a high-resolution ADC. The manufacturer describes the MCP3201 as combining high performance with low power consumption in a small package. Its SAR architecture, integrated sample-and-hold function, and SPI interface reduce the amount of external analog and digital circuitry required. The single pseudo-differential input provides a practical analog reference point while retaining a compact pin count suitable for space-constrained embedded equipment. Typical uses include industrial process monitoring, battery-powered instrumentation, environmental sensing, portable measurement equipment, and embedded control systems that already use an SPI master. The converter can digitize sensor outputs connected to its pseudo-differential input while a host controller supplies clock and command signals and receives the 12-bit result through the serial interface. Designers should follow the manufacturer datasheet for the analog input, reference-voltage, grounding, and decoupling configurations. Input and reference routing must be compact and stable, and the digital interface requires suitable signal levels and trace integrity. Verify the complete operating voltage, reference range, timing, and electrical limits before finalizing a system configuration. This product page combines the exact MCP3201-CI/MS ordering information with technical specifications, package details, pin mapping, same-family drop-in candidates, and practical selection guidance. It helps engineers evaluate the converter against alternative accuracy and temperature grades before committing a single-channel SPI ADC to a new embedded design.

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MCP3201-CI/P - 12-Bit SPI ADC, 2.7-5.5V | Microchip
MCP3201-CI/P

MCP3201-CI/P - 12-Bit SPI ADC, 2.7-5.5V | Microchip

The Microchip Technology MCP3201-CI/P is a 12-bit, one-input, successive-approximation-register analog-to-digital converter with an SPI serial interface, a 2.7 V to 5.5 V supply range, and an 8-pin PDIP package. It converts a single pseudo-differential analog input to a 12-bit digital result and supports embedded-control measurements where low power, compactness, and serial connectivity matter. An ADC is an interface IC that converts an analog voltage into a numeric value for processing by a microcontroller, DSP, or other digital controller. The MCP3201 belongs to the SAR ADC family rather than flash, pipeline, or sigma-delta converter families. Its SAR architecture performs successive comparison internally, while the on-board sample-and-hold circuitry captures the input voltage before conversion. The SPI-compatible interface allows the device to share a serialized bus with other peripherals when chip-select and signal-routing requirements are managed correctly. The verified manufacturer data identifies the device as a 12-bit ADC with one input, SAR conversion, SPI communication, a 2.7 V to 5.5 V operating range, and typical standby and active currents of 500 nA and 300 uA respectively. The single pseudo-differential input arrangement can measure a signal relative to a common reference, provided the input and reference voltages remain within the device limits. The compact 8-pin PDIP package supports through-hole assembly and is suited to prototypes, educational systems, industrial control boards, and low-channel-count sensor interfaces. The MCP3201-CI/P is designed for embedded-control applications requiring a modest number of analog measurements rather than high-throughput multichannel conversion. Its SPI-compatible serial interface makes it practical for systems with a microcontroller SPI master. Because the verified web data does not provide a complete pin-level table, input range, conversion-time value, or reference-voltage specification, those parameters remain marked for data completion rather than being inferred. Typical applications include analog sensor conditioning, temperature or potentiometer monitoring, battery or power-rail measurement, industrial control inputs, laboratory instrumentation, and microcontroller-based data-acquisition modules. The device should be paired with suitable analog conditioning, reference-voltage stability, decoupling, grounding, and an input voltage that stays within the manufacturer’s specified limits. SPI clocking and chip-select timing must follow the manufacturer datasheet, particularly when multiple SPI devices share the bus. For PCB implementation, keep the analog input trace short, place the device close to its decoupling network, and maintain a clean return path between the converter and its reference source. Confirm the pinout and exposed package details against the official datasheet before layout. The verified distributor listing also identifies the part as an 8-PDIP, while the manufacturer page describes the MCP3201 family and its SAR architecture. This page consolidates the verified manufacturer and distributor resources for MCP3201-CI/P, distinguishes documented facts from parameters requiring verification, and provides purchasing, comparison, design, and selection guidance for engineers evaluating a compact SPI ADC.

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MCP3201-CI/SN - 12-Bit 100ksps SAR ADC | Microchip
MCP3201-CI/SN

MCP3201-CI/SN - 12-Bit 100ksps SAR ADC | Microchip

The Microchip Technology MCP3201-CI/SN is a 12-bit, single-channel successive-approximation analog-to-digital converter with a 100 ksps conversion rate, 2.7 V operating supply, and SPI serial interface in an 8-pin SOIC package. It combines an on-board sample-and-hold circuit with one pseudo-differential input, making it suitable for embedded measurement and control systems. An ADC is an interface component that converts an analog voltage into a digital value for processing by a microcontroller or other embedded controller. The MCP3201 belongs to the SAR ADC, analog-to-digital converter, data-converter, and semiconductor hierarchies. Its 12-bit resolution provides 4096 discrete codes, while the sample-and-hold circuit allows the input voltage to remain stable during successive-approximation conversion. Key characteristics include a 100 ksps maximum sampling rate, ±1 LSB differential nonlinearity, and ±2 LSB integral nonlinearity for the C-grade device. The industrial-temperature option operates from -40°C to +85°C. Its SPI interface supports connection to PIC microcontrollers and other SPI-capable embedded systems, while its single pseudo-differential input simplifies acquisition of signals referenced to the converter ground. Internally, the converter uses successive approximation rather than a continuous conversion architecture. A sample-and-hold stage captures the input, and the SPI command sequence initiates and controls the conversion. The digital result is transferred over the serial interface, reducing the number of signal traces required compared with a parallel ADC. The C-grade accuracy grade should be considered when selecting between the C and B device versions for a precision-sensitive design. Typical uses include industrial process-control instrumentation, battery-powered embedded measurement, temperature or pressure sensor acquisition, laboratory equipment, and low-cost data-acquisition systems. The single input is appropriate when one analog quantity must be measured at a time. For applications requiring several simultaneous or multiplexed channels, an ADC with more channels may be more appropriate. Design the analog input path to keep source impedance and signal settling within the converter's sampling requirements. Place input bypass and reference-decoupling capacitors close to their associated pins, maintain a clean return path, and use a stable voltage reference. The SPI clock and digital traces should be kept away from the analog input to minimize conversion disturbance. This product page combines manufacturer specifications, package details, sourcing information, drop-in alternatives, comparison parameters, and application-specific design guidance to support component selection and PCB implementation.

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MCP3201-CI/ST - 12-Bit 100 kSPS SPI ADC | Microchip
MCP3201-CI/ST

MCP3201-CI/ST - 12-Bit 100 kSPS SPI ADC | Microchip

The Microchip Technology MCP3201-CI/ST is a 12-bit, single-channel successive-approximation analog-to-digital converter with a 100 kSPS sampling rate, operating from 2.7 V to 5.5 V in an 8-pin MSOP package. It includes an onboard sample-and-hold circuit and one pseudo-differential input, making it suitable for embedded measurement and control systems that need compact, low-power SPI conversion. An analog-to-digital converter, or ADC, converts an analog voltage into a numeric value for processing by a microcontroller or other digital controller. The MCP3201 belongs to the SAR ADC hierarchy, where an internal sample-and-hold circuit samples the input and a successive-approximation conversion process produces a 12-bit result. Its SPI-compatible serial interface simplifies connection to embedded systems while the 8-pin MSOP package supports compact, surface-mount PCB layouts. The MCP3201-CI/ST provides 12-bit resolution, a maximum sampling rate of 100 kSPS, and a single pseudo-differential input channel. The MCP3201-C accuracy grade specifies integral nonlinearity of ±2 LSB, while differential nonlinearity is ±1 LSB. An operating range of 2.7 V to 5.5 V supports both 3.3 V and 5 V systems. The industrial-temperature suffix identifies operation from -40 °C to 85 °C. Its internal sample-and-hold circuitry captures the analog input before conversion, reducing the need for external acquisition hardware. The serial interface uses clock, data input, data output, and chip-select signals. Because the device begins sampling on the first rising clock edge after chip select is asserted, firmware timing and signal sequencing are important when interpreting successive conversion results. Typical uses include industrial sensor acquisition, battery and power-system monitoring, environmental measurement, laboratory instrumentation, and compact embedded-control projects. The single-channel architecture is particularly appropriate when one slowly changing or moderately sampled analog voltage must be measured. For systems requiring several simultaneous inputs, higher-channel-count SAR converters may offer a more suitable architecture. PCB design should place the reference and input return connections close to the device and maintain a quiet return path from VSS. Supply bypassing and analog-signal routing should be kept compact, while the SPI clock and chip-select traces should be routed away from sensitive input nets. Confirm the full-scale input range and absolute input limits against the manufacturer datasheet before applying signals that can exceed the supply rails. This page combines device specifications, application guidance, pin-level design considerations, sourcing information, and a same-package comparison framework. It also highlights the limits of replacement selection: a true drop-in substitute must preserve the MSOP-8 footprint, pin assignments, electrical limits, SPI behavior, and required conversion performance rather than merely offering similar resolution.

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MCP3202-BI/P - 12-Bit Dual-Channel SPI ADC | Microchip
MCP3202-BI/P

MCP3202-BI/P - 12-Bit Dual-Channel SPI ADC | Microchip

The Microchip Technology MCP3202-BI/P is a 12-bit successive-approximation analog-to-digital converter with two input channels, an SPI serial interface, and an 8-pin PDIP package. It operates from 2.7 V to 5.5 V and supports conversion rates up to 100 ksps at 5 V and 50 ksps at 2.7 V. The device also features on-chip sample-and-hold circuitry. What is a SAR ADC? A successive-approximation-register analog-to-digital converter samples an analog voltage and performs a sequence of internal comparisons to produce a digital code. The MCP3202 combines that conversion method with a sample-and-hold circuit and a serial interface, making it a compact data-conversion block for embedded control systems. Its two inputs can be configured as one pseudo-differential pair or as two single-ended channels according to the Microchip product documentation. Key features include 12-bit resolution, two analog inputs, SPI communication, and low power consumption. According to the manufacturer datasheet, typical standby current is 500 nA and typical active current is 375 µA. The interface supports SPI modes 0,0 and 1,1. The conversion-rate advantage is most pronounced at 5 V, where the 100 ksps rating is twice the 50 ksps rating available at the 2.7 V minimum supply. The SAR architecture produces one conversion result per sampled input, making the MCP3202 suitable for slow-to-medium-speed instrumentation rather than high-frequency waveform capture. Its simple serial protocol requires chip select, clock, data input, and data output connections, allowing it to share an SPI bus with other compatible peripherals when chip-select control is managed correctly. Typical uses include industrial sensor acquisition, potentiometer measurements, battery or power-supply monitoring, and embedded control systems. The MCP3202 is particularly useful where a microcontroller lacks an adequate analog input or where higher-resolution external measurement is required. Its low standby current also suits battery-operated equipment that spends substantial time between measurements. Designers should route analog inputs carefully, use a clean and stable reference supply, and observe the manufacturer’s input-voltage limits relative to the analog and digital supply levels. The SPI clock and chip-select signals should be controlled so that conversion timing and data framing remain deterministic. Because the MCP3202-BI/P is supplied in a PDIP package, it is most appropriate for through-hole designs, prototypes, and industrial assemblies rather than compact surface-mount layouts. This page consolidates the verified manufacturer specifications, sourced distributor listings, package information, and drop-in replacement considerations into a design-oriented reference for engineers evaluating the MCP3202-BI/P.

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MCP3202-BI/SN - 12-Bit Dual-Channel 100 ksps ADC | Microchip
MCP3202-BI/SN

MCP3202-BI/SN - 12-Bit Dual-Channel 100 ksps ADC | Microchip

The Microchip Technology MCP3202-BI/SN is a 12-bit, dual-channel successive-approximation-register analog-to-digital converter capable of 100 ksps at 5 V and 50 ksps at 2.7 V, packaged in an 8-pin SOIC. It accepts analog inputs within a 2.7 V to 5.5 V operating range and communicates through an SPI-compatible serial interface. An ADC is a data-acquisition interface that converts continuous voltage signals into digital values for processing by a microcontroller or another digital controller. The MCP3202 belongs to the SAR ADC family, where an internal sample-and-hold circuit and successive comparison process produce a 12-bit result. This architecture is suited to embedded control, instrumentation, sensor measurement, and low-bandwidth analog monitoring systems. The converter's principal characteristics include two analog input channels, a resolution of 12 bits, and a maximum conversion rate of 100 ksps at a 5 V supply. At a 2.7 V supply, the documented conversion rate is 50 ksps. Low-power operation is reflected by typical standby and active currents of 500 nA and 375 µA, respectively, making the device useful in battery-operated embedded systems. SPI-compatible communication allows the MCP3202-BI/SN to connect to PICmicro and other SPI-capable microcontrollers while minimizing the number of signal lines required. The serial interface supports conversion-result transfer and channel selection through digital control signals. Because the device uses a SAR architecture rather than a continuous pipeline, it provides deterministic sampling behavior for general-purpose embedded measurement. Typical uses include potentiometer and resistive-sensor interfaces, industrial control inputs, low-voltage battery monitoring, digital panel meters, and compact data-acquisition modules. The device is also suitable for educational platforms using Arduino-compatible controllers or Raspberry Pi systems equipped with suitable SPI interface hardware. Designers should verify analog input voltage limits, reference-voltage behavior, source impedance, and acquisition timing against the operating voltage. A low source impedance, local analog grounding, and short PCB traces help preserve conversion accuracy. The SPI lines should also be arranged to minimize coupling from fast-switching digital signals into the analog input path. This product page combines manufacturer specifications, lifecycle information, drop-in family options, application guidance, and a parameter-by-parameter comparison. It helps engineers identify whether the MCP3202-BI/SN matches a required channel count, sampling rate, supply range, package, and low-power embedded-control design.

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MCP3202-CI/MS - 12-Bit Dual-Channel SPI ADC | Microchip
MCP3202-CI/MS

MCP3202-CI/MS - 12-Bit Dual-Channel SPI ADC | Microchip

Microchip Technology MCP3202-CI/MS is a 12-bit, dual-channel successive-approximation-register analog-to-digital converter with an SPI serial interface, operating from 2.7 V to 5.5 V in an 8-MSOP package. It converts two single-ended analog inputs at up to 100 ksps with a 5 V supply and 50 ksps with a 2.7 V supply. An ADC is an analog-to-digital converter, a data-acquisition IC that samples a continuous voltage and produces a numeric code for processing by a microcontroller or other digital controller. The MCP3202 belongs to the SAR ADC family and includes an internal sample-and-hold circuit. Its SPI interface allows a host processor to configure and read conversions while the converter remains compact and suitable for embedded control systems. The device provides 12-bit conversion resolution, two analog input channels, and an SPI-compatible serial interface in an 8-MSOP package. According to the Microchip manufacturer datasheet, operating current is typically 375 µA during active conversion and standby current is typically 500 nA. These characteristics make the converter suitable for portable instruments, industrial monitoring equipment, battery-powered controls, and low-power embedded data acquisition. The SAR architecture performs conversion by successively approximating the input voltage with internal capacitor-based comparisons. An on-board sample-and-hold circuit captures the input during the sampling interval, allowing the conversion process to operate from a held voltage. Serial communication uses SCLK, DIN, CS, and DOUT lines, with the exact operating sequence governed by the converter's control logic in the manufacturer datasheet. Typical applications include potentiometer and position measurement, temperature-sensor conditioning, current monitoring, industrial process control, and low-power embedded instrumentation. The two input channels can monitor two related analog quantities, while the SPI interface reduces the number of required signal lines and allows sharing with other serial peripherals when chip-select control is implemented correctly. For a new design, preserve the 8-MSOP footprint, verify the reference-voltage limits, and select input and reference capacitors according to the application’s noise requirements. Supply and reference grounds should be routed carefully to reduce conversion error, while the analog input pins should remain short, quiet, and physically separated from fast-switching nodes wherever the PCB layout permits. This page combines manufacturer specifications, practical embedded-conversion guidance, package and interface details, sourcing information, and validated substitute-analysis results for engineers designing around the MCP3202-CI/MS.

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MCP3202-CI/P - 12-Bit Dual-Channel 100 kSPS ADC | Microchip
MCP3202-CI/P

MCP3202-CI/P - 12-Bit Dual-Channel 100 kSPS ADC | Microchip

The Microchip Technology MCP3202-CI/P is a 12-bit, dual-channel successive-approximation analog-to-digital converter with a 100 kSPS conversion rate, SPI serial interface, and 8-pin PDIP package. The device supports analog inputs from 0 to 2.7 V or 0 to 5.5 V, depending on supply configuration, making it suitable for embedded measurement and control systems. A successive-approximation register ADC is an ADC architecture that determines the analog input by comparing it with a reference through successive approximation. An ADC belongs to the analog-to-digital conversion and data-acquisition hierarchy, while the MCP3202-CI/P is specifically designed for low-power embedded control applications. Its SPI interface allows a host microcontroller to configure input channels and retrieve digital results. The MCP3202-CI/P provides a 12-bit conversion resolution, two analog input channels, and a 100 kSPS sampling capability. The SAR architecture supports predictable conversion behavior for slowly changing sensor signals and general-purpose analog measurements. Its low-power operation and compact package help reduce system size and energy consumption in embedded designs. The SPI interface provides a straightforward connection to microcontroller peripherals, allowing command transfer and result readout over serial data lines. The dual-channel structure permits measurement of two analog signals without selecting two separate converter packages. Applications include temperature sensing, potentiometer reading, battery-voltage monitoring, industrial controls, and consumer embedded equipment. Designers should provide a stable reference voltage, adequate analog-input conditioning, and decoupling close to the device supply pins. Input signals must remain within the specified analog input range, and the selected SPI clock and conversion timing must comply with the manufacturer datasheet. The PDIP package also requires adequate through-hole spacing and appropriate lead clearance on the PCB. This page combines the verified Microchip product identity, distributor data, package information, lifecycle information, and practical engineering guidance. It is intended to help engineers evaluate MCP3202-CI/P for embedded analog measurement while separating verified specifications from parameters that require confirmation from the manufacturer datasheet.

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MCP3202-CI/SN - 12-Bit Dual-Channel SPI ADC | Microchip
MCP3202-CI/SN

MCP3202-CI/SN - 12-Bit Dual-Channel SPI ADC | Microchip

The Microchip Technology MCP3202-CI/SN is a 12-bit, dual-channel successive-approximation analog-to-digital converter in an 8-pin SOIC package. It converts two analog inputs through a serial SPI-compatible interface, operates from 2.7 V to 5.5 V, and supports conversion rates up to 100 ksps at 5 V and 50 ksps at 2.7 V. The device combines low power consumption with typical standby current of 500 nA and typical active current of 375 uA, making it suitable for embedded control systems, instrumentation, and low-power sensor interfaces. An ADC is a semiconductor that converts an analog voltage into a digital value for processing by a microcontroller or another digital system. The MCP3202 belongs to the SAR ADC hierarchy: successive approximation register architecture compares the input voltage with an internal reference through a sequence of conversion steps, producing a 12-bit result. Its dual input arrangement supports two measurement channels while sharing one SPI interface and a common voltage reference. Key operating features include a 12-bit resolution, two analog input channels, a 2.7 V to 5.5 V operating-voltage range, and an SPI-compatible serial interface. The MCP3202 supports both single-ended and differential input configurations according to the device data sheet. A 5 V supply permits the maximum 100 ksps conversion rate, while operation at 2.7 V provides a maximum rate of 50 ksps. The interface uses serial clock, data input, data output, and chip-select signals, reducing the number of parallel signal paths required on small embedded boards. Typical uses include battery-powered environmental sensors, industrial process monitoring, temperature measurement bridges, laboratory data acquisition, and educational microcontroller platforms such as Arduino and Raspberry Pi. In these systems, the ADC can be connected to a host controller through SPI while an external reference establishes the measurement scale. The low active current is useful for portable equipment, although the actual system consumption depends on the host controller, reference circuit, sensor, and digital interface activity. Designers should pay attention to analog grounding, reference stability, input range, sampling timing, and the relationship between supply voltage and maximum conversion rate. The analog input voltage must remain within the input range allowed by the selected reference configuration, and the reference pins should be decoupled according to the recommended application circuit. Keep SPI traces short, provide a clean return path for the digital signals, and place input and bypass capacitors close to the appropriate device pins. The 8-pin SOIC footprint is also convenient for mixed-signal designs where the ADC must share a board with a microcontroller and regulated supply rails.

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MCP3202-CI/ST - 12-Bit Dual-Channel SPI ADC | Microchip
MCP3202-CI/ST

MCP3202-CI/ST - 12-Bit Dual-Channel SPI ADC | Microchip

The Microchip Technology MCP3202-CI/ST is a 12-bit, dual-channel, successive-approximation analog-to-digital converter with an SPI serial interface, supplied in an 8-pin TSSOP package. It operates from a 2.7 V supply and combines two analog inputs with on-board sample-and-hold circuitry, making it suitable for embedded control, data acquisition, and sensor measurement systems. An ADC is an integrated circuit that converts continuously varying analog voltages into numeric values that a microcontroller or other digital controller can process. The MCP3202 belongs to the SAR ADC hierarchy, where an internal sample-and-hold circuit captures the input voltage and a successive-approximation conversion produces a 12-bit code. This architecture is appropriate for relatively low-frequency measurements where low power consumption and a compact package are more important than maximum conversion throughput. The MCP3202-CI/ST provides 12-bit conversion resolution, two analog input channels, a 2.7 V operating supply, and SPI communication. According to the manufacturer datasheet, its differential nonlinearity is specified to a maximum of 1 LSB and its integral nonlinearity to a maximum of 2 LSB. These characteristics establish the converter's nominal accuracy and help designers size the input range, analog front end, and software conversion scale. The SAR architecture uses on-board sample-and-hold circuitry to stabilize the selected analog input during conversion. A microcontroller can configure the conversion through the serial interface, initiate a sample, receive the 12-bit result, and repeat the process for either channel. SPI support makes the MCP3202 practical for systems where the ADC shares a compact serial bus with other peripherals and where fewer external pins are preferable to a parallel interface. Typical applications include industrial temperature and pressure sensing, potentiometer position measurement, battery voltage monitoring, laboratory data acquisition, and educational platforms connected to Arduino or Raspberry Pi boards. In each case, the analog signal should remain within the ADC input range, and the source impedance must be compatible with the sample-and-hold input arrangement. A key design consideration is signal conditioning. The selected channel should be driven through a suitable low-impedance buffer when the sensor has high source impedance, while analog traces should be kept away from switching nodes and high-current paths. Firmware must also configure the channel and input mode before interpreting the returned 12-bit result. This product page combines the manufacturer specifications, package and pin information, application guidance, and qualified same-footprint alternatives. It also highlights the electrical limits that determine whether the MCP3202-CI/ST is appropriate for a new embedded measurement design.

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MCP3204-BI/P - 12-Bit 4-Channel SPI ADC | Microchip
MCP3204-BI/P

MCP3204-BI/P - 12-Bit 4-Channel SPI ADC | Microchip

Microchip Technology MCP3204-BI/P is a 12-bit, 4-channel, 100 kSPS successive-approximation analog-to-digital converter with an SPI serial interface in a 14-pin PDIP package. It provides four single-ended analog inputs or two pseudo-differential input pairs, on-chip sample-and-hold circuitry, and supports SPI modes 0,0 and 1,1. Its specified differential nonlinearity is ±1 LSB maximum and integral nonlinearity is ±2 LSB maximum. An ADC is a data-conversion IC that converts an analog voltage into a digital number for processing, measurement, or control. The MCP3204 belongs to the SAR ADC family, which repeatedly compares the sampled input voltage with an internal reference and produces its 12-bit result through successive approximation. It sits within the broader semiconductor hierarchy of data converters, analog-to-digital converters, and embedded control ICs. The MCP3204 combines four selectable analog inputs with a 12-bit conversion result and a 100 kSPS maximum sampling rate. Its 2.7 V operating basis supports low-voltage embedded systems, while the SPI interface allows a microcontroller to command conversions and retrieve results using industry-standard serial signaling. Single-ended and pseudo-differential input configurations provide flexibility for sensor, potentiometer, and divided-voltage measurements. Its SAR architecture performs one conversion per sampled input without the complex filtering requirements associated with higher-speed converter families. On-chip sample-and-hold circuitry captures the analog input at the start of conversion. SPI operating modes 0,0 and 1,1 provide straightforward compatibility with common microcontroller serial peripherals, although software or hardware configuration must preserve the clock polarity and phase required by the selected mode. Typical uses include industrial control systems, four-channel sensor acquisition, potentiometer and resistive-divider measurement, battery or power monitoring, and embedded instrumentation. The four-channel configuration reduces the number of external multiplexers and analog front-end stages needed when several slowly changing or moderate-rate signals must be measured by a microcontroller-based system. Designers should connect the analog and digital grounds according to the manufacturer datasheet and use a stable reference voltage because ADC accuracy is referenced to VREF. Input signals must remain within the analog input range, and source impedance should be low enough to allow the sample-and-hold capacitor to settle within the acquisition time. SPI clocking, chip-select handling, and conversion-start timing should be implemented according to the manufacturer timing diagrams.

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MCP3204-BI/SL - 12-Bit 4-Channel 100 ksps ADC | Microchip
MCP3204-BI/SL

MCP3204-BI/SL - 12-Bit 4-Channel 100 ksps ADC | Microchip

The Microchip Technology MCP3204-BI/SL is a 12-bit, 4-channel successive-approximation analog-to-digital converter with a 100 ksps conversion rate, SPI serial interface, and 14-pin SOIC package. It supports four single-ended inputs or two pseudo-differential input pairs and operates from a 2.7 V supply. An ADC converts an analog voltage into a numeric value for processing by a microcontroller or other digital controller. The MCP3204 belongs to the successive-approximation ADC family, which repeatedly compares the sampled input voltage with an internally generated reference. Its SAR architecture combines straightforward digital control with low power consumption, making it suitable for embedded measurement systems that periodically sample sensors rather than continuously converting waveforms. The MCP3204-BI/SL provides 12-bit resolution, four configurable analog inputs, an on-chip sample-and-hold circuit, and an SPI interface operating in modes 0,0 and 1,1. Its specified accuracy includes a maximum differential nonlinearity of ±1 LSB and maximum integral nonlinearity of ±2 LSB. Four single-ended channels can be selected for general sensor measurement, while the pseudo-differential arrangement can improve noise rejection when a suitable common reference is available. Typical uses include industrial process monitoring, temperature and pressure sensor interfaces, battery-bank measurement, laboratory data acquisition, and compact embedded-control panels. The SPI interface allows a microcontroller to configure the converter and retrieve conversion results over a short serial bus. The 14-pin SOIC package is easy to assemble with conventional surface-mount production methods and remains suitable for compact, mixed-signal boards. Circuit design must provide a stable reference voltage, adequate input and reference decoupling, and an analog input source whose common-mode voltage remains within the device operating limits. Because the converter is successive-approximation based, each channel requires a conversion interval; software should not begin a new conversion until the previous result is complete. SPI clock polarity and phase must match the supported modes, and chip-select timing should preserve valid output data. This page consolidates the manufacturer specification, package information, application fit, and verified drop-in comparison guidance into a practical engineering reference. It helps designers evaluate the MCP3204-BI/SL alongside closely related Microchip converters while separating package compatibility from functional differences in channel count, temperature grade, and sampling requirements.

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MCP3204-CI/P - 12-Bit 4-Channel SPI ADC | Microchip
MCP3204-CI/P

MCP3204-CI/P - 12-Bit 4-Channel SPI ADC | Microchip

The Microchip Technology MCP3204-CI/P is a 12-bit, 4-channel successive-approximation-register analog-to-digital converter with a 100 kSPS sampling rate, a 2.7 V to 5.5 V supply range, and a 14-pin PDIP package. It combines four single-ended or two pseudo-differential inputs with an SPI serial interface and on-board sample-and-hold circuitry, making it suitable for embedded measurement and control systems. An ADC converts continuous analog voltages into digital codes for processing by a microcontroller or other digital controller. The MCP3204 belongs to the SAR ADC family, where a sampled input is converted through successive approximation rather than a continuously operating conversion process. Its four-channel input structure supports sensors, potentiometers, and control feedback while the SPI interface provides a compact connection to embedded processors. The verified manufacturer materials identify the MCP3204 as a 12-bit ADC with single-ended and pseudo-differential input configurations. The device family operates from 2.7 V to 5.5 V and provides typical standby and active currents of 500 nA and 320 µA, respectively. The MCP3204-CI/P is offered in a 14-pin PDIP package, while the same family is also available in 150 mil SOIC and TSSOP packages. Because it uses SAR architecture, the MCP3204 is appropriate for low-to-moderate-rate acquisition rather than high-speed waveform conversion. Its 100 kSPS capability permits periodic sensing of multiple analog channels, and the SPI interface allows the host controller to select an input, initiate conversion, and retrieve the result digitally. Exact timing, accuracy, and input-range details should be confirmed against the manufacturer datasheet for the selected production variant. Typical applications include industrial process monitoring, temperature and pressure sensor interfaces, battery or power-system measurement, and embedded control boards. In a sensor circuit, the analog output is applied to an input channel, the controller selects the channel through SPI, and the resulting 12-bit value is stored or processed in firmware. For layout and signal integrity, keep analog input traces short, provide a stable reference and supply arrangement, and avoid routing high-current switching paths adjacent to the analog inputs. Because the verified data does not provide complete package pin names, pricing tiers, or a confirmed lifecycle statement for this exact orderable part, those fields are explicitly marked where data is unavailable rather than inferred. This page combines the verified Microchip product identity, datasheet link, distributor references, and practical design guidance for engineers evaluating the MCP3204-CI/P in embedded analog measurement systems.

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MCP3204-CI/SL - 12-Bit 4-Channel SAR ADC | Microchip
MCP3204-CI/SL

MCP3204-CI/SL - 12-Bit 4-Channel SAR ADC | Microchip

The Microchip Technology MCP3204-CI/SL is a 12-bit, 4-channel successive approximation register analog-to-digital converter with a 100 kSPS conversion rate, SPI serial interface, and 14-pin SOIC package. It combines on-board sample-and-hold circuitry with low power consumption for embedded control systems that require compact multi-channel data acquisition. An ADC is an interface component that converts continuous analog voltages into digital values for processing by a microcontroller or other digital controller. The MCP3204 belongs to the SAR ADC family, where an internal sample-and-hold circuit captures an input voltage before a successive approximation conversion produces a 12-bit code. SPI provides a compact, widely supported interface for transferring conversion results to embedded processors. The converter features 12-bit resolution, four analog input channels, a maximum conversion rate of 100 kSPS, and an SPI interface. According to the Microchip MCP3204 product page, the device combines high performance and low power consumption in a small package. The 14-pin SOIC package supports conventional surface-mount assembly and is suitable for compact embedded-control boards. The MCP3204 supports both single-ended and differential measurements, providing flexibility for applications such as potentiometer sensing, temperature monitoring, bridge-sensor measurement, and general-purpose analog signal acquisition. Its four-channel architecture reduces the number of separate converter packages required when several independent or related analog signals must be measured. Typical uses include industrial control, instrumentation, data acquisition, embedded systems, and Arduino-compatible sensor interfaces. Because the MCP3204 uses SPI rather than I2C, it can operate alongside other SPI peripherals on a shared serial bus when chip-select handling and bus timing are designed correctly. PCB design should preserve short analog traces, provide a quiet ground reference, and place input-filter or protection components close to the corresponding pins. The analog input range must also be checked against the selected supply configuration, because input and reference voltages determine the usable conversion range and the effective full-scale code. This product record combines the manufacturer’s device description with practical guidance on signal conditioning, PCB layout, SPI implementation, and application selection. It also distinguishes pin-compatible family alternatives from parts that merely perform a similar ADC function but cannot replace this device without a footprint or interface redesign.

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MCP3204-CI/ST - 12-Bit 4-Channel SAR ADC | Microchip
MCP3204-CI/ST

MCP3204-CI/ST - 12-Bit 4-Channel SAR ADC | Microchip

Microchip MCP3204-CI/ST is a 12-bit, four-channel successive approximation register analog-to-digital converter with an SPI serial interface, a 100 ksps sampling rate, and a 14-pin TSSOP package. The automotive-qualified device is designed for embedded control applications requiring compact multichannel data acquisition and low-power operation. An analog-to-digital converter, or ADC, converts continuous analog voltage signals into digital values that a microcontroller or other digital controller can process. The MCP3204 belongs to the SAR ADC family, whose successive approximation architecture compares the input voltage with a internally generated reference through a successive sequence of conversion steps. Its SPI interface reduces the number of signal connections required for transferring conversion results. The MCP3204-CI/ST provides four analog input channels, 12-bit conversion resolution, and a 100 ksps conversion rate in a 14-pin TSSOP package. Its operating supply voltage begins at 2.7 V, making it appropriate for embedded systems that cannot support a 5 V-only analog interface. The automotive qualification indicated for this ordering code supports its use in vehicle-oriented electronic control systems when the complete system requirements are satisfied. The SPI interface supports integration with microcontrollers, programmable controllers, and data-acquisition systems. Four analog inputs allow one converter to serve multiple sensors or conditioned analog signals while avoiding the footprint and component count of four unrelated converter packages. The 12-bit result provides 4,096 discrete codes across the selected input range, while the 100 ksps rate supports rapidly changing measurements when the acquisition and signal-conditioning path are designed appropriately. Typical uses include automotive sensor acquisition, industrial control systems, battery and power monitoring, laboratory data acquisition, and embedded instrumentation. The converter can be paired with analog front-end circuits, voltage references, op-amp signal-conditioning stages, and SPI-capable microcontrollers. Its low-voltage operation and compact TSSOP outline are useful where board area, energy use, and deterministic serial communication are important. The principal design considerations are reference quality, input-range configuration, source impedance, acquisition timing, and SPI clocking. Input signals must remain within the selected analog range, and the sampling network should present sufficiently low impedance to the converter's sample-and-hold input. PCB traces should be kept short, reference connections stable, and digital return currents controlled to minimize conversion errors. This product page combines the manufacturer description with distributor and cross-reference information to summarize the MCP3204-CI/ST's resolution, channel count, sampling rate, interface, package, application fit, and replacement considerations. It also provides engineering-focused guidance for PCB layout, signal conditioning, and component selection.

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MCP3208-BI/P - 12-Bit 8-Channel SAR ADC | Microchip
MCP3208-BI/P

MCP3208-BI/P - 12-Bit 8-Channel SAR ADC | Microchip

The Microchip Technology MCP3208-BI/P is a 12-bit successive-approximation-register analog-to-digital converter with eight input channels, one SPI serial interface, and a 16-pin PDIP package. It operates from a 2.7 V supply and is designed for embedded-control systems that need multiple analog inputs measured by a microcontroller or other SPI host. An ADC is a data-conversion IC that transforms an analog voltage into a digital code. The MCP3208 belongs to the SAR ADC family within analog-to-digital converters, interface ICs, and the broader semiconductor hierarchy. Its internal sample-and-hold circuitry acquires the input voltage before successive approximation converts that voltage into a 12-bit result. The SPI interface allows sampled measurements to be transferred efficiently between the converter and a digital controller. Key features include 12-bit conversion resolution, eight single-ended input options, and SPI communication. The verified product information identifies four differential input channels, eight single-ended inputs, one SAR conversion engine, and a 2.7 V operating supply. These characteristics make the device useful when an embedded design must monitor multiple sensors, potentiometers, or analog control signals without using a separate ADC for every channel. The MCP3208-BI/P uses the BI temperature grade, which the verified distributor information associates with an operating range of -40°C to +85°C. Its 16-pin PDIP package favors through-hole construction, reworkability, and educational or industrial control boards where a socket or conventional plated through-hole footprint is useful. Because it is a multiplexed converter, the selected channel determines which analog input is connected to the internal sample-and-hold circuit during conversion. Typical applications include industrial process monitoring, environmental sensor acquisition, laboratory measurement interfaces, audio and control-signal digitization, and embedded instrumentation. In these systems, the microcontroller initiates a conversion by writing channel and configuration commands over SPI, waits for the sample-and-hold and conversion sequence, and then reads the 12-bit result. A multiplexed architecture reduces package size, although channel switching means conversions are sequential rather than simultaneous. When designing around the MCP3208-BI/P, verify the analog input range against the selected reference voltage and confirm that the SPI host uses the required clocking and chip-select behavior. Reference and analog-ground routing are critical because ADC accuracy depends on the quality of the voltage reference and the analog signal path. The 16-pin PDIP package also requires adequate through-hole spacing and mechanical clearance in compact production equipment. This product page combines the verified Microchip and distributor specifications with package, application, sourcing, and design context. It also distinguishes verified drop-in replacements from merely similar ADC functions, preventing a functional substitute with a different package from being presented as a PCB-compatible alternative.

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MCP3208-BI/SL - 12-Bit 8-Channel SPI ADC | Microchip
MCP3208-BI/SL

MCP3208-BI/SL - 12-Bit 8-Channel SPI ADC | Microchip

The Microchip Technology MCP3208-BI/SL is a 12-bit, 8-channel successive approximation register analog-to-digital converter with a 100 ksps maximum sampling rate, configured for 4 differential or 8 single-ended inputs and housed in a 16-pin SOIC package. It combines an SPI serial interface, programmable input configuration, and low-power operation for embedded control, industrial measurement, and sensor-acquisition systems. An ADC is a data-conversion IC that converts an analog voltage into a digital code for processing, logging, display, or closed-loop control. The MCP3208 belongs to the ADC → data-converter IC → semiconductor hierarchy. Its SAR architecture repeatedly compares the sampled input with an internal reference to produce a 12-bit result. This makes it suitable for adding general-purpose analog measurement to a microcontroller that does not include enough onboard ADC channels. The converter provides eight analog input channels that can be used as eight single-ended inputs or four pseudo-differential input pairs. Maximum differential nonlinearity is ±1 LSB and maximum integral nonlinearity is ±2 LSB for the MCP3208. The SPI interface supports modes 0,0 and 1,1, while the input structure includes an onboard sample-and-hold circuit. These features balance useful conversion resolution with a straightforward host-controller interface. MCP3208-BI/SL operates from a 2.7 V supply, and its analog reference and digital interface support embedded-system integration. The SPI interface transfers the 12-bit conversion result while minimizing pin count compared with a parallel ADC. The 16-SOIC package has a 3.90 mm body width and supports industrial temperature operation from -40°C to +85°C, making it appropriate for compact control boards requiring analog inputs beyond the capabilities of the host MCU. Typical uses include temperature-sensor monitoring, potentiometer position acquisition, current and voltage measurement, industrial panel controls, and multichannel data acquisition. Differential channels can improve rejection of common-mode voltage when paired with suitable sensor circuitry. The 100 ksps rate supports rapidly changing analog signals, although each conversion is initiated and read through the SPI interface. Design the analog and digital sections to minimize noise and ground currents. Place the decoupling and reference components near the converter, route SPI signals away from sensitive analog inputs, and account for reference accuracy when calculating overall measurement error. For battery-powered systems, verify the selected conversion rate and shutdown behavior against the available current budget.

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MCP3208-CI/P - 12-Bit 8-Channel SAR ADC | Microchip
MCP3208-CI/P

MCP3208-CI/P - 12-Bit 8-Channel SAR ADC | Microchip

The Microchip Technology MCP3208-CI/P is a 12-bit, eight-channel successive approximation analog-to-digital converter with a 100 ksps sampling rate, 2.7 V to 5.5 V supply range, and SPI interface in a 16-pin PDIP package. It converts four single-ended or eight pseudo-differential analog inputs through programmable input channels, while its sample-and-hold circuitry supports embedded measurement and control systems. An analog-to-digital converter is an ADC, a semiconductor that translates an analog voltage into a digital code. The MCP3208 belongs to the SAR ADC family, using a successive approximation register to acquire one conversion result through successive comparison steps. In the system hierarchy, it is an ADC, data-acquisition IC, embedded-control peripheral, and semiconductor. Key features include 12-bit resolution, eight analog input channels, four pseudo-differential input pairs, a 100 ksps maximum sampling rate, and SPI communication. The manufacturer datasheet describes single-ended or pseudo-differential input programmability, allowing the same device to serve applications with different channel arrangements. Its 2.7 V to 5.5 V operating range supports low-voltage embedded systems and conventional 5 V industrial interfaces. The SAR architecture is appropriate when deterministic sampling, modest resolution, and serial integration are more important than very high throughput. The SPI interface allows a microcontroller to command conversions and read results, while the 16-pin PDIP package supports through-hole prototyping, legacy industrial boards, and designs where a socket or hand-soldered installation is useful. Typical standby and active currents are approximately 500 nA and 320 uA, respectively. Typical applications include industrial process monitoring, environmental sensors, temperature and pressure measurement, laboratory instrumentation, embedded data acquisition, and low-voltage control systems. The SPI bus should be configured for the intended clock and chip-select behavior, and analog inputs must remain within the device's specified voltage limits. For new high-density designs, SOIC variants may be preferable, but the MCP3208-CI/P is specifically the PDIP package. The main design trade-off is throughput and resolution rather than ultra-high precision: 100 ksps and 12-bit resolution are adequate for many control and measurement tasks but may not satisfy demanding instrumentation. This page combines verified Microchip specifications, package information, sourcing references, and application-oriented design guidance.

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MCP3208-CI/SL - 12-Bit 8-Ch SAR ADC, SPI, SOIC-16 | Microchip
MCP3208-CI/SL

MCP3208-CI/SL - 12-Bit 8-Ch SAR ADC, SPI, SOIC-16 | Microchip

The Microchip Technology MCP3208-CI/SL is a 12-bit, 8-channel successive approximation register (SAR) analog-to-digital converter (ADC) with an SPI-compatible serial interface, housed in a 16-pin SOIC (SL) package. Operating from a single 2.7V to 5.5V supply, it delivers up to 100 ksps throughput and integrates 8 input channels that can be software-configured as either 8 single-ended inputs or 4 pseudo-differential pairs. An analog-to-digital converter is a mixed-signal integrated circuit that converts a continuous-time, continuous-amplitude voltage on its input pin into a discrete digital code at its output. SAR ADCs in particular use a binary-search algorithm with an internal sample-and-hold and capacitive DAC to converge on the input voltage in N conversion cycles (N = number of bits). SAR converters sit within the broader ADC family alongside delta-sigma (high-resolution, low-speed) and pipeline ADCs (very-high-speed, multi-Msps), and are favored for low-latency, moderate-resolution sampling in embedded systems where determinism and simple serial interfacing matter more than ultimate resolution. Key features include ±1 LSB maximum DNL, ±1 LSB maximum INL, low power consumption of 5 nA standby current and 0.5 mA typical active current at 5V, and an industrial-grade operating temperature range of -40 C to +85 C. The SPI interface uses a standard 4-wire arrangement (CS, DIN, DOUT, CLK), is compatible with 8-bit serial protocols, and supports daisy-chaining of multiple devices on the same bus. The device combines a track-and-hold input stage with a successive-approximation core and on-chip clock. The pseudo-differential input mode provides improved common-mode rejection for bridge sensors and thermocouple interfaces, while single-ended mode maximizes channel count for general-purpose monitoring of 8 separate analog signals. Typical applications include factory automation sensor multiplexing, battery monitoring in portable instruments, data acquisition front-ends for HVAC controllers, and robotics joint position sensing. The SOIC-16 wide-body package simplifies hand-prototyping and is widely accepted by contract assemblers. When designing with the MCP3208, ensure VDD is well-decoupled with a 1 uF ceramic capacitor placed within 5 mm of the AVDD pin, and that the analog input source impedance stays below 1 kohm to avoid converter gain errors. Note that -CI versions are specified over -40 C to +85 C, while -BI versions extend to -40 C to +125 C. This page synthesizes real-time distributor pricing, drop-in alternatives from the same Microchip SAR ADC family, and application notes not collated in the standalone datasheet, helping you evaluate whether MCP3208-CI/SL is the right ADC for your 8-channel embedded design.

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