MAX118CPI+ - 8-Channel 8-Bit 1Msps ADC | Analog Devices
MPN: MAX118CPI+ ✓ सक्रियMAX118CPI+ अवलोकन
An ADC converts continuously varying analog voltages into numeric values that digital control systems can process. The MAX118 belongs to the data-converter hierarchy: analog-to-digital converter, ADC, data converter, and integrated circuit. Its eight single-ended inputs make it suitable for monitoring multiple sensors, control signals, or measurement channels without requiring eight separate converter packages. Its 8-bit resolution provides 256 digital codes across each input range.
The principal features are eight single-ended inputs, 8-bit resolution, a 1 MSPS conversion rate, and a 660 ns half-flash conversion time. The converter operates from one +5 V supply, with the listed operating range extending from 4.75 V to 5.25 V. Its parallel output architecture supports microprocessor-compatible interfacing, while the active-low power-down function provides a low-current shutdown state. The 28-pin PDIP package supports conventional through-hole PCB assembly.
The half-flash architecture forms the central technical basis of the converter. Rather than waiting for a complete conversion cycle before the next sample can begin, the architecture supports successive conversion operation at the stated 1 MSPS rate. This behavior is useful when several analog inputs must be refreshed quickly for control, display, or measurement functions. Signal conditioning, source impedance, and input-range selection still require attention because ADC performance depends on the complete analog path, not only the converter IC.
Typical uses include industrial process monitoring, laboratory measurement, data logging, embedded instrumentation, and legacy control-system analog input modules. Eight channels can reduce the component count and board area when several slow or moderate-speed signals share a common sampling system. The MAX118CPI+ is also appropriate where an existing parallel-bus processor expects an 8-bit conversion result and a +5 V interface rather than a serial data link.
For PCB implementation, reserve all 28 package positions and route the parallel data bus away from high-current switching nodes. Place the device close enough to the analog inputs to minimize trace pickup, and use suitable input conditioning when sensor outputs exceed the converter input range. Confirm signal levels, timing margins, and acquisition sequencing against the manufacturer pin-description and timing information before releasing the layout.
This page combines the MAX118CPI+ electrical identity, procurement fields, comparison guidance, and engineering-oriented design notes in one searchable reference. It also distinguishes the confirmed 28-pin PDIP variant from unverified substitutes so engineers can focus on verified function, package, timing, power, and interface constraints.
के लिए ड्रॉप-इन विकल्प MAX118CPI+ — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
MAX118CPI
✅ ड्रॉप-इन📋 संदर्भ विकल्प (कैटलॉग में नहीं)
MAX118CPI+ Maximum Ratings और Electrical Characteristics
| Converter Type | Microprocessor-compatible flash ADC |
| रेज़ोल्यूशन | 8 bit |
| Number of Input Channels | 8 channels |
| Input Type | 8 single-ended inputs |
| Conversion Rate | 1 MSPS |
| Conversion Time | 660 ns |
| सप्लाई वोल्टेज | +5 V |
| Operating Supply Voltage Range | 4.75 V to 5.25 V |
| Power-Down Current | 1 µA typical |
| Power-Down Control | Active-low PWRDN |
| Power-Down Wake-Up Time | Less than 200 ns |
| Output Interface | 8-bit parallel microprocessor-compatible interface |
| Conversion Architecture | Half-flash |
| पैकेज | 28-pin PDIP |
| माउंटिंग प्रकार | Through-hole |
MAX118CPI+ 28-pin pdip पिन कॉन्फ़िगरेशन गाइड
MAX118CPI+ (28-pin pdip 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: MAX118CPI+.
देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।
सामान्य अनुप्रयोग
MAX118CPI+ के लिए उपयुक्त है 6 अनुप्रयोगs: Industrial Process Monitoring, Data Logging and Instrumentation, Embedded Control System, Legacy Parallel-Bus Acquisition Card, Portable Measurement Module, Educational and Prototyping Systems.
Industrial Process Monitoring
The MAX118CPI+ suits industrial control and monitoring modules that must acquire several conditioned sensor signals through a parallel data interface. Its eight single-ended inputs allow eight measurements to share one converter, while the 1 MSPS rate and 660 ns conversion time provide useful timing margin for supervisory control loops. The 28-pin PDIP package is straightforward for through-hole industrial boards. Designers should place input protection and conditioning close to each channel, route analog traces away from switching nodes, and verify that the controller can acquire the parallel result within the documented timing window.
अनुशंसित
Data Logging and Instrumentation
The MAX118CPI+ is useful in laboratory and field data loggers that periodically sample multiple analog channels and transfer results to a microprocessor. Eight 8-bit channels reduce the number of converter packages required when the measured signals are moderate-speed and already conditioned. The parallel output can connect directly to an 8-bit processor bus, and the active-low PWRDN input can place the converter into a 1 µA typical shutdown state between acquisition intervals. Firmware should account for the less-than-200 ns wake-up interval and should avoid sampling until the converter is fully operational.
अनुशंसित
Embedded Control System
The MAX118CPI+ fits embedded controllers requiring eight analog feedback points, such as valve position, temperature, pressure, or current-loop monitoring. The 1 MSPS conversion capability supports coordinated sampling, while the half-flash architecture reaches a 660 ns conversion time. An 8-bit parallel interface provides a straightforward connection to legacy processor data buses. Engineers should define each channel's input range, protect externally connected inputs, and choose external resistors and capacitance according to the manufacturer application guidance before closing the control-loop design.
अनुशंसित
Legacy Parallel-Bus Acquisition Card
The MAX118CPI+ is appropriate for expanding a legacy parallel-bus controller with eight single-ended ADC channels without redesigning the processor interface around a serial converter. Its 8-bit output aligns with an 8-bit data bus, and the 28-pin PDIP package simplifies insertion into a through-hole expansion board. The acquisition logic must still handle chip select, read timing, and settling between conversions. Using a level-compatible interface and confirming the controller's bus contention behavior is essential when the converter output is connected to shared data lines.
अनुशंसित
Portable Measurement Module
The MAX118CPI+ can support portable measurement modules that combine several low-bandwidth analog inputs with battery-powered digital control. Its active-low power-down input provides a typical 1 µA shutdown current, while the stated less-than-200 ns recovery time permits rapid duty-cycled operation. The through-hole package can suit a rugged instrument assembled with sockets or manual insertion. Power-budget calculations should include the converter's operating current, input-conditioning components, and processor leakage. Signal sources must also be disconnected or appropriately high-impedance during shutdown to prevent leakage from corrupting measurements.
अनुशंसित
Educational and Prototyping Systems
The MAX118CPI+ is well suited to microcontroller teaching systems and ADC prototyping boards because it combines eight inputs, an 8-bit result, and a familiar parallel interface. Students can observe the 660 ns conversion architecture and use the active-low power-down input to study duty-cycled acquisition. Its 28-pin PDIP package is easy to inspect and replace on a prototype board. The demonstration circuit should include protected inputs, a stable +5 V source, and clear acquisition timing so students can distinguish source settling, conversion, and digital readback effects.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा MAX118CPI+ — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद | MAX118CPI |
|---|---|---|
| Package | 28-pin PDIP | 28-pin PDIP |
| Brand | Analog Devices | Analog Devices |
| Resolution | 8 bit | 8 bit |
| Input Channels | 8 single-ended channels | 8 single-ended channels |
| Conversion Rate | 1 MSPS | 1 MSPS |
| Conversion Time | 660 ns | 660 ns |
| Supply Voltage | +5 V | +5 V |
| Output Interface | 8-bit parallel microprocessor-compatible | 8-bit parallel microprocessor-compatible |
मुख्य विशेषताएँ
- Eight-channel integration (बनामMAX114CPI)
- Fast half-flash acquisition (बनामMAX118CPI)
- Low-power shutdown function (बनामMAX118CPI)
डिज़ाइन नोट्स
Route the eight analog inputs away from digital clocks, relay contacts, inductors, and high-current switching paths. Keep the MAX118CPI+ close to the input connectors or conditioning networks so that interference and capacitance are minimized. Connect the supply and ground pins according to the manufacturer layout guidance, use short ground returns, and place bypass capacitors at the appropriate power pins rather than at a distant supply branch.
Treat source impedance, settling time, and the acquisition period as one signal-chain constraint. The converter's 660 ns conversion time does not remove the time required for an external sensor or filter to settle after a channel is selected. Use the manufacturer input-circuit recommendations, keep traces short, and validate settling with the actual source impedance. Add suitable buffers when the source cannot charge the input capacitance quickly enough.
Do not drive the parallel output bus unless the interface timing and chip-select behavior are satisfied. Check that the processor data bus can be disabled while the ADC is selected, and account for output update timing during successive conversions. Also confirm that power-down does not leave an analog source connected in a way that drives unwanted current through an input protection structure.
अनुपालन जानकारी
Compliance declarations for the exact MAX118CPI+ ordering code require current manufacturer documentation.