LTC1283CJ - 10-Bit 8-Channel ADC | Analog Devices
MPN: LTC1283CJ ✗ जीवन की समाप्तिLTC1283CJ अवलोकन
A data acquisition system converts real-world analog voltages into digital values for measurement, control, or display. Within the ADC category, the LTC1283 integrates a successive-approximation converter, an analog input multiplexer, and an on-chip sample-and-hold circuit. Its serial interface reduces the number of signal connections required between the converter and a controller while preserving dedicated analog measurement capability.
Key features include an 8-channel analog multiplexer that can be configured for single-ended inputs, differential inputs, or combinations of both. The converter supports 10-bit unipolar and 9-bit plus sign bipolar operating modes. LTCMOS switched-capacitor technology performs the conversion, while the integrated sample-and-hold circuit captures the input voltage before conversion. A 3 V supply and a 20-pin ceramic DIP package support compact through-hole instrumentation layouts.
The multiplexer is the central architectural feature for multi-sensor systems. Instead of dedicating one converter to every input, it routes selected channels to the shared converter and sample-and-hold circuit. Differential operation can reduce the influence of common-mode voltage on measurements, while single-ended operation simplifies connections for sensors with one signal output and a shared reference. Serial output supports economical connection to a microcontroller or embedded controller.
Typical uses include industrial process measurement, multichannel sensor acquisition, battery-powered instrumentation, and embedded control systems that need several analog inputs but only moderate conversion resolution. The LTC1283CJ is also appropriate for prototypes and legacy equipment requiring a through-hole ceramic DIP footprint, especially where board area is less important than straightforward assembly and serviceability.
Design around the exact input ranges, acquisition timing, reference requirements, and serial protocol listed in the Analog Devices LTC1283 datasheet. Confirm signal source impedance, acquisition time, reference stability, grounding, and digital-interface levels before finalizing the analog front end. Use the manufacturer's pin-description table and application guidance when assigning tracks and guarding inputs.
This page organizes the LTC1283CJ's converter architecture, multiplexing capabilities, package details, sourcing path, and engineering considerations into a practical selection reference. It also separates verified device facts from replacement and lifecycle decisions that require direct manufacturer confirmation.
के लिए ड्रॉप-इन विकल्प LTC1283CJ — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
इस उत्पाद के लिए कोई drop-in alternatives उपलब्ध नहीं।
विकल्प अनुरोध करेंLTC1283CJ Maximum Ratings और Electrical Characteristics
| Device Type | Single-chip data acquisition system |
| ADC Architecture | Successive approximation |
| इंटरफ़ेस प्रकार | Serial |
| सप्लाई वोल्टेज | 3 V |
| Unipolar Resolution | 10 bit |
| Bipolar Resolution | 9 bit plus sign |
| Input Channels | 8 channels |
| Multiplexer Configuration | Single-ended, differential, or mixed inputs |
| Sample-and-Hold | On-chip |
| Conversion Technology | LTCMOS switched-capacitor |
| Package Type | Ceramic DIP-20 |
| पिन काउंट | 20 pins |
| माउंटिंग प्रकार | Through-hole |
| ऑपरेटिंग तापमान | 0 °C to 70 °C |
| Temperature Grade | Commercial |
LTC1283CJ ceramic dip-20 पिन कॉन्फ़िगरेशन गाइड
LTC1283CJ (ceramic dip-20 पैकेज) के लिए पिन कॉन्फ़िगरेशन। इस एनालॉग कंपोनेंट में इनपुट, आउटपुट और पावर सप्लाई पिन हैं। ऑफ़सेट नल, कम्पनसेशन और एनेबल पिन कॉन्फ़िगरेशन के लिए निर्माता डेटाशीट देखें। सिग्नल कंडीशनिंग और एम्प्लीफ़ायर सर्किट के लिए आदर्श।
इसके लिए कोई विस्तृत pinout data उपलब्ध नहीं: LTC1283CJ.
देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।
सामान्य अनुप्रयोग
LTC1283CJ के लिए उपयुक्त है 6 अनुप्रयोगs: Industrial Process Measurement, Multichannel Sensor Acquisition, Battery-Powered Instrumentation, Embedded Control Systems, Laboratory Measurement Equipment, Legacy Through-Hole Control Boards.
Industrial Process Measurement
The LTC1283CJ fits an industrial process-measurement front end that must monitor several low-bandwidth analog signals with one controller interface. Its 8-channel multiplexer routes single-ended or differential sensor outputs to a shared successive-approximation converter, while the on-chip sample-and-hold circuit supports controlled acquisition. The 10-bit unipolar or 9-bit-plus-sign bipolar formats suit temperature, pressure, level, and position monitoring where moderate resolution is more important than maximum conversion speed. A 3 V supply and serial interface simplify connection to embedded controllers. The designer should confirm the exact input range, acquisition time, reference requirements, and source impedance before selecting sensor excitation and protection components.
अनुशंसित
Multichannel Sensor Acquisition
The LTC1283CJ is appropriate for sensor nodes that combine multiple analog inputs with a serial data path. Eight multiplexed channels reduce the number of dedicated converter inputs, and single-ended operation simplifies wiring where sensors provide a signal and ground. Differential operation is available when common-mode rejection is important, while mixed configurations can serve a panel containing both referenced and differential sources. The converter's 10-bit unipolar or 9-bit-plus-sign bipolar resolution provides practical precision for many environmental and condition-monitoring systems. Because the integration is switched-capacitor and multiplexed, acquisition timing and source settling must be checked for fast-changing inputs or high-impedance sensor networks.
अनुशंसित
Battery-Powered Instrumentation
The LTC1283CJ can serve as the acquisition section of a low-voltage, battery-powered instrument because it operates from a 3 V supply and consolidates conversion, multiplexing, and sample-and-hold functions. Consolidating these blocks can reduce board area and external analog routing in portable monitors, handheld analyzers, and field-service equipment. The serial interface permits communication with a low-power controller without a parallel data bus. Power budgeting should include the converter, reference circuitry, sensor loads, and controller activity; the complete current draw is not established by the 3 V supply rating alone. Verify reference current, standby behavior, and conversion timing against the manufacturer's electrical characteristics before estimating battery life.
अनुशंसित
Embedded Control Systems
The LTC1283CJ is useful in embedded control equipment that must read several analog quantities while communicating over a serial interface. It can monitor pressure, position, supply margin, temperature, or discrete analog thresholds, then send conversion results to a microcontroller or programmable controller. The 8-channel input multiplexer allows a compact front end for systems whose control task does not require simultaneous high-speed sampling. The ceramic DIP-20 through-hole package also suits educational prototypes, legacy control boards, and repair assemblies where hand insertion and socket-based maintenance are preferred. Firmware must handle the device's serial timing and should avoid assuming that multiplexed inputs can be sampled simultaneously at full conversion speed.
अनुशंसित
Laboratory Measurement Equipment
The LTC1283CJ can support compact laboratory instruments that acquire several moderately resolved analog measurements. Examples include bench power monitors, process demonstrators, educational analyzers, and environmental test fixtures. The serial interface reduces wiring complexity, and the configurable multiplexer supports both grounded single-ended sensors and differential sensors. A 10-bit unipolar measurement provides approximately 1 mV per code when referenced to a 1.024 V span, while a bipolar configuration adds sign resolution; actual accuracy remains dependent on reference quality, noise, linearity, and the selected input range. For precision bench measurements, evaluate the manufacturer's accuracy and error specifications and ensure the chosen reference and source impedance meet the acquisition requirements.
अनुशंसित
Legacy Through-Hole Control Boards
The LTC1283CJ is a practical choice for repairing or updating legacy through-hole control boards that used a 20-pin DIP data acquisition device. Its through-hole ceramic package supports board-level sockets, manual assembly, and service access, while the integrated converter, multiplexer, and sample-and-hold circuit can reproduce or improve older multichannel measurement functions. Compatibility must still be confirmed at every pin, including supply, reference, analog input, and serial-interface connections. Check timing, reset or chip-select behavior, input ranges, and firmware protocol against the original system before installation. The commercial 0 °C to 70 °C rating makes it suitable for ordinary indoor equipment, not extended-temperature industrial environments.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा LTC1283CJ — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद |
|---|---|
| Function | 8-channel serial successive-approximation data acquisition IC |
| Supply Voltage | 3 V |
| Unipolar Resolution | 10 bit |
| Bipolar Resolution | 9 bit plus sign |
| Input Channels | 8 channels |
| Input Configuration | Single-ended, differential, or mixed |
| Sample-and-Hold | On-chip |
| Package | Ceramic DIP-20, through-hole |
| Brand | Analog Devices |
| Operating Temperature | 0 °C to 70 °C |
मुख्य विशेषताएँ
- Integrated eight-channel analog multiplexer (बनामGeneric discrete 10-bit ADC)
- Selectable unipolar and bipolar conversion modes (बनामGeneric single-polarity 10-bit ADC)
- Integrated sample-and-hold circuit (बनामGeneric external sample-and-hold ADC)
- Serviceable ceramic through-hole package (बनामSurface-mount data acquisition IC)
डिज़ाइन नोट्स
Do not select inputs or replacement parts from resolution alone. Confirm that the complete 20-pin arrangement, 3 V supply, reference connection, serial interface, and conversion timing match the intended circuit. The LTC1283 combines an 8-channel multiplexer with a shared converter, so channel switching and source settling are part of the measurement chain. Verify input impedance, acquisition time, and sampling rate in the manufacturer datasheet before using high-impedance sensors or rapidly changing signals.
Route analog inputs, the reference network, ground, and the serial interface according to the Analog Devices LTC1283 application guidance. Keep sensitive input and reference traces short, maintain a stable ground reference for the converter, and isolate switching or digital return currents from sensitive analog paths. Use the manufacturer's pin-description table when assigning every connection; a complete public pin list is not present in the available product listing.
Treat the input network as part of the converter's acquisition system. Source resistance, capacitance, sensor drive current, and the sample-and-hold settling interval determine whether the selected channel reaches an accurate conversion result. If a sensor cannot settle within the acquisition time, add the appropriate buffer or sampling network and check the resulting bandwidth against the intended measurement. Grounding and reference decoupling should follow the recommended application circuit.
Use the manufacturer power-dissipation and electrical-characteristic limits for final thermal analysis because the verified product listing does not expose the complete power table. The ceramic DIP-20 enclosure should be evaluated in the final airflow and ambient-temperature conditions of legacy or laboratory equipment. Maintain copper and through-hole thermal paths, avoid enclosing the board without ventilation, and verify that adjacent regulators or power components do not raise the converter's local ambient temperature beyond its 0 °C to 70 °C operating range.
अनुपालन जानकारी
The available product records identify a commercial-grade ceramic DIP-20 device but do not provide explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. AEC-Q100 is not applicable to the stated commercial-temperature grade.
