MCP3002-I/ST - 10-Bit Dual-Channel SAR ADC | Microchip
MPN: MCP3002-I/ST ✓ सक्रियMCP3002-I/ST अवलोकन
An ADC is an interface IC that converts continuously varying analog voltages into numeric values for processing by a microcontroller or other digital controller. The MCP3002 belongs to the successive-approximation-register, or SAR, ADC family. Its SAR architecture performs conversion through repeated comparisons, providing a practical balance of resolution, sampling speed, power consumption, and implementation complexity for embedded measurement systems.
The converter provides 10-bit resolution, two analog inputs, and a maximum sampling rate of 200 ksps. Inputs may be configured as one pseudo-differential pair or two single-ended inputs. According to the supplied manufacturer and distributor data, differential nonlinearity and integral nonlinearity are each limited to ±1 LSB maximum. The SPI interface supports modes 0,0 and 1,1 for flexible connection to embedded serial controllers.
The MCP3002-I/ST also supports single-supply operation from 2.7 V, making it appropriate for low-voltage embedded systems. Its on-board sample-and-hold circuitry captures the input before conversion, while the serial interface transfers the result using chip select, clock, and data-input signals. These characteristics allow a microcontroller to request measurements without requiring a separate external sample-and-hold circuit.
Typical applications include industrial sensor acquisition, battery-powered instrumentation, consumer controls, temperature monitoring, potentiometer interfaces, and general embedded data acquisition. The dual-input arrangement is especially useful when two related analog quantities must be measured within one compact 8-pin package. The MCP3002-I/ST is also identified as an automotive-qualified AEC-Q100 option by the supplied distributor data.
Designers should provide stable input and reference paths, observe the SPI signal timing required by the converter, and keep sensitive analog traces away from fast digital switching nodes. Because the MCP3002 provides 10-bit rather than higher resolution, system gain, reference accuracy, noise filtering, and sensor conditioning can determine the practical precision of the final measurement.
This product page consolidates the verified manufacturer, distributor, and cross-reference information with application guidance, design notes, package details, and an honest assessment of drop-in replacement availability. Unlike the manufacturer datasheet alone, it highlights implementation constraints and sourcing considerations for engineers evaluating the MCP3002-I/ST.
के लिए ड्रॉप-इन विकल्प MCP3002-I/ST — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
MCP3002T-I/ST
✅ ड्रॉप-इन📋 संदर्भ विकल्प (कैटलॉग में नहीं)
MCP3002-I/ST Maximum Ratings और Electrical Characteristics
| रेज़ोल्यूशन | 10 bit |
| Converter Architecture | Successive approximation register (SAR) |
| Analog Input Count | 2 inputs |
| Input Configuration | 1 pseudo-differential pair or 2 single-ended inputs |
| सैंपलिंग रेट | 200 ksps |
| सप्लाई वोल्टेज | 2.7 V minimum |
| Digital Interface | SPI, modes 0,0 and 1,1 |
| Sample-and-Hold Circuitry | On-board |
| Differential Nonlinearity | ±1 LSB maximum |
| Integral Nonlinearity | ±1 LSB maximum |
| ऑपरेटिंग तापमान रेंज | -40°C to +85°C |
| पैकेज | 8-TSSOP |
| Package Width | 4.40 mm |
| माउंटिंग प्रकार | Surface mount |
| Automotive Qualification | AEC-Q100 |
| Shipping Format | Tube |
MCP3002-I/ST पिन कॉन्फ़िगरेशन
| पिन 1 | CS — Active-low chip-select input |
| पिन 2 | CH0 — Analog input channel 0 |
| पिन 3 | CH1 — Analog input channel 1 |
| पिन 4 | VREF- — Negative reference input |
| पिन 5 | VREF+ — Positive reference input |
| पिन 6 | VDD — Positive analog supply input |
| पिन 7 | DIN — Serial data input |
| पिन 8 | SCLK — Serial clock input |
सामान्य अनुप्रयोग
MCP3002-I/ST के लिए उपयुक्त है 6 अनुप्रयोगs: Industrial Sensor Acquisition, Battery-Powered Instrumentation, Temperature and Level Monitoring, Potentiometer and Control Input, Automotive Embedded Measurement, Consumer Embedded Control.
Industrial Sensor Acquisition
The MCP3002-I/ST fits industrial sensor acquisition where a controller must digitize one or two analog channels without adding a large converter package. Its 10-bit resolution, two-input configuration, and 200 ksps maximum sampling rate support proportional sensors, resistive dividers, and modest process-control measurements. According to the verified Microchip data, the SAR architecture includes on-board sample-and-hold circuitry and operates from a 2.7 V supply. Place the converter close to the sensor source, condition the signal before the inputs, and use a stable reference so that the system error budget accounts for the ADC rather than hiding it in downstream calibration.
अनुशंसित
Battery-Powered Instrumentation
The MCP3002-I/ST is suitable for battery-powered instrumentation because its verified operating supply begins at 2.7 V and its compact 8-TSSOP package limits board area. The 10-bit SAR converter can acquire analog measurements at up to 200 ksps while communicating over SPI, allowing a low-power controller to collect data and enter a low-energy state between updates. The supplied records do not specify quiescent current, so battery-life calculations must use the current Microchip datasheet. Keep the analog front end switched or high impedance when no conversion is required, and confirm that the reference and sensor circuits do not dominate standby consumption.
अनुशंसित
Temperature and Level Monitoring
The MCP3002-I/ST can support temperature, liquid-level, or position monitoring when the sensor produces an analog voltage within the converter's supported input range. Two single-ended inputs allow related channels to be measured, while the pseudo-differential option can be useful when the sensor arrangement permits a differential signal. According to the verified product data, the converter provides 10-bit resolution, 200 ksps sampling, and ±1 LSB maximum DNL and INL. Condition resistive sensors with an appropriate bridge or divider, protect exposed inputs, and use repeated readings or filtering if the source changes more slowly than the converter can sample.
अनुशंसित
Potentiometer and Control Input
The MCP3002-I/ST is appropriate for reading potentiometers, position controls, and resistive command inputs in embedded control panels. A 10-bit conversion provides 1,024 digital codes, while the verified 200 ksps rate is more than adequate for human-operated controls. The SPI interface permits the host controller to request a conversion and retrieve the result without occupying a large parallel bus. For reliable operation, add input filtering, account for wiper resistance and source impedance, and keep the analog trace short and away from switching circuitry. Calibration can correct offset and gain errors, but it cannot replace an analog signal that exceeds the supported input range.
अनुशंसित
Automotive Embedded Measurement
The MCP3002-I/ST is identified in the supplied distributor data as an AEC-Q100 automotive-qualified option, making it relevant to vehicle embedded measurement systems. Its 10-bit SAR architecture, dual analog inputs, 200 ksps sampling rate, and -40°C to +85°C operating range cover many low-speed sensing tasks. According to the verified Microchip product information, the device operates from a 2.7 V supply and communicates through SPI. Automotive designs still require review of the complete qualification record, supply-chain traceability, transient protection, reference stability, and fault behavior; AEC-Q100 identification alone does not validate an entire vehicle subsystem.
अनुशंसित
Consumer Embedded Control
The MCP3002-I/ST fits consumer embedded controls that require a compact ADC for analog buttons, light sensors, thermal inputs, or configuration potentiometers. Its 8-TSSOP package and 2.7 V minimum supply support space-constrained and low-voltage products, while the 10-bit SAR format is straightforward to process on a microcontroller. According to the verified Microchip and distributor data, the device supports two single-ended inputs, one pseudo-differential pair, and SPI modes 0,0 and 1,1. Keep the analog return path continuous, decouple the supply locally, and verify the allowed input limits against the maximum sensor output before production release.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा MCP3002-I/ST — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद | MCP3002T-I/ST |
|---|---|---|
| Package | 8-TSSOP | 8-TSSOP |
| Brand | Microchip Technology | Microchip Technology |
| Resolution | 10 bit | 10 bit |
| Converter Architecture | SAR | SAR |
| Analog Input Count | 2 inputs | 2 inputs |
| Sampling Rate | 200 ksps | 200 ksps |
| Digital Interface | SPI, modes 0,0 and 1,1 | SPI |
| Minimum Supply Voltage | 2.7 V | 2.7 V |
| Differential Nonlinearity | ±1 LSB maximum | ±1 LSB maximum |
| Integral Nonlinearity | ±1 LSB maximum | ±1 LSB maximum |
मुख्य विशेषताएँ
- Compact dual-channel conversion in an 8-TSSOP package (बनामMCP3002T-I/ST)
- Configurable analog input topology (बनामMCP3002T-I/ST)
- Embedded SPI compatibility (बनामMCP3002T-I/ST)
डिज़ाइन नोट्स
Route the two analog inputs as short, continuous traces away from SPI clock and digital output paths. The MCP3002-I/ST uses a 10-bit SAR conversion with on-board sample-and-hold circuitry, so source impedance and settling time affect the valid measurement window. Keep the sensor return connected close to the converter ground reference and place any input filtering where it will not add excessive impedance. The retrieved data does not provide the complete recommended-layout values, so follow the current Microchip datasheet before finalizing spacing and filtering.
Provide a stable 2.7 V-or-higher supply within the device's verified operating limits and decouple the supply locally. The exact maximum supply voltage and quiescent current were not included in the retrieved records, so both must be confirmed from the current manufacturer datasheet before selecting capacitors or power-budgeting a low-energy system. The reference voltage must also remain stable relative to measurement accuracy because ADC code scaling and system error depend on the VREF+ and VREF- relationship.
Do not assume that every SPI ADC with similar resolution is a drop-in replacement. The MCP3002-I/ST uses an 8-TSSOP package, a specific command sequence, two configurable analog inputs, and SPI modes 0,0 and 1,1. A substitute with a different pinout, clock mode, input range, or command format can require PCB and firmware changes. Before approving MCP3002T-I/ST, compare the ordering-code details and every electrical limit against the current Microchip datasheet; the retrieved cross-reference data does not establish a complete second alternative.
अनुपालन जानकारी
The supplied Lisleapex distributor result identifies MCP3002-I/ST as automotive AEC-Q100. The retrieved records do not provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations, so those fields remain unknown.
