MAX160CWN+ - 8-Bit 250 kSPS SAR ADC | Analog Devices
N.º da peça: MAX160CWN+ ✓ AtivoMAX160CWN+ Visão geral
An ADC is an interface integrated circuit that converts a continuously varying voltage into a numeric code for processing, measurement, or control. The MAX160 belongs to the data-converter hierarchy within integrated circuits: ADC, data converter, mixed-signal IC, and semiconductor. Its internal successive-approximation architecture uses a binary search process to determine each 8-bit result, while its parallel output allows a microprocessor or other digital controller to read the converted value directly.
Key characteristics include 8-bit resolution, one single-ended analog input, 250 kSPS operation, and a 4 microsecond conversion time. The MAX160 family is designed as a low-cost microprocessor-compatible converter, making it useful when the application does not require the resolution, throughput, or integrated reference features of a higher-performance ADC. The MAX160CWN+ is offered in an 18-pin SOIC package for conventional surface-mount PCB assembly.
The MAX160 uses a successive-approximation conversion technique rather than pipelined, flash, or sigma-delta conversion. This architecture is appropriate for control and measurement loops that need straightforward conversion at moderate speed. The manufacturer identifies the MAX160 as a production CMOS device and describes the family as microprocessor compatible. The 4 microsecond conversion time corresponds to the stated 250 kSPS class of operation.
Typical uses include industrial process monitoring, temperature and level sensing, consumer control panels, embedded instrumentation, and simple factory automation. Because the converter provides an 8-bit parallel interface, a design can connect its digital output bus to a microcontroller, programmable logic controller, or other parallel-input controller. An external reference and external input-conditioning network are normally required where the source signal does not already match the converter input range.
The primary design consideration is signal conditioning. Keep the analog input within its permitted voltage range, provide suitable bypassing at the supply and reference pins, and account for source impedance when sampling. Board layout should keep the analog input trace short and isolated from high-current digital and switching paths to minimize conversion errors.
This product page combines the manufacturer product information, distributor listings, package details, replacement cross-references, and practical design guidance. It also distinguishes the electrically similar MAX160EWN+ from variants that use different package or temperature-grade options, helping engineers evaluate replacement choices without assuming that every similarly named part is footprint-compatible.
Alternativas drop-in para MAX160CWN+ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MAX160CWN+ (mesmo formato e footprint) — diferindo em Package, Mounting Type, Conversion Architecture, Conversion Time, Output Interface.
MAX160EWN+
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Ver ficha técnica →MAX160EWN+
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Ver ficha técnica →MAX160CWN+ Classificações máximas e características elétricas
| Resolução | 8 bit |
| Number of Inputs | 1 input |
| Input Type | Single-ended |
| Architecture | Successive approximation (SAR) |
| Conversion Throughput | 250 kSPS |
| Conversion Time | 4 us |
| Output Interface | 8-bit parallel, microprocessor compatible |
| Reference Type | External |
| Encapsulamento | 18-pin SOIC, 0.295 inch / 7.50 mm width |
| Package Type | Gull-wing, rectangular SOP |
| Tipo de montagem | Surface mount |
| Number of Terminals | 18 |
| Temperature Grade | Commercial |
| Technology | CMOS |
| Production Status | Production |
Guia de Configuração de Pinos do MAX160CWN+ gull-wing, rectangular sop
Configuração de pinos para MAX160CWN+ (pacote gull-wing, rectangular sop). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para MAX160CWN+.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MAX160CWN+ é adequado para 6 aplicaçãos: Industrial Temperature and Level Monitoring, Embedded Instrumentation Panel, Consumer Control and Button Interfaces, Factory Automation Threshold Control, Audio-Control and Bias Monitoring, Portable Sensor Node.
Industrial Temperature and Level Monitoring
The MAX160CWN+ suits industrial temperature or level monitoring when an 8-bit reading and 250 kSPS conversion rate are sufficient. Its single-ended SAR input can sample a conditioned sensor signal, while the 8-bit parallel output can connect directly to a programmable logic controller or embedded controller. In this arrangement, the converter translates the conditioned voltage into a digital code in approximately 4 microseconds. The principal design trade-off is resolution: 256 output levels are appropriate for coarse alarm, display, or supervisory control but may be insufficient when fine process regulation requires additional quantization levels. Sensor linearity, input filtering, reference stability, and grounding therefore determine the practical accuracy more than the nominal ADC resolution alone.
Recomendado
Embedded Instrumentation Panel
The MAX160CWN+ can form the measurement front end of a compact embedded instrumentation panel that displays one analog-controlled value. An 8-bit parallel bus provides a straightforward connection to a microcontroller or programmable logic device, while the 250 kSPS sampling capability allows the value to be refreshed repeatedly during a user interaction. The converter is particularly suitable when the panel requires indication rather than laboratory-grade accuracy. Designers should add input buffering where the sensor source is resistive, calibrate offset and gain in firmware, and keep the digital output traces away from the analog input to reduce switching coupling. The compact 18-pin SOIC package also supports conventional PCB assembly without a specialized fine-pitch footprint.
Recomendado
Consumer Control and Button Interfaces
The MAX160CWN+ is applicable to consumer control boards that convert a variable analog input into a digital position, level, or control value. Its single-ended SAR architecture and 8-bit parallel interface allow economical sampling of potentiometer positions, light-dependent networks, or resistive dividers. Because the converter reaches 250 kSPS, it can follow relatively rapid control movements without the latency associated with much slower acquisition systems. In practice, debounce and filtering should be applied according to the mechanical or optical source. Because eight bits provide only 256 codes, the design should use resistor values and signal travel that make one count meaningful at the intended range, avoiding reliance on the ADC alone to compensate for a poorly conditioned input.
Recomendado
Factory Automation Threshold Control
The MAX160CWN+ can support factory automation threshold control by sampling a conditioned analog sensor and presenting an 8-bit code to a controller that determines whether a limit has been reached. Its 250 kSPS throughput provides headroom for repeated measurements, while the 4 microsecond conversion time supports responsive supervision. The implementation is most appropriate for interlocks, alarm thresholds, actuator requests, and basic feedback where the required accuracy matches eight-bit resolution. A robust design should include input protection against industrial transients, a defined grounding strategy, and controller-side filtering to prevent repeated switching near a threshold. Verify the supply, input, and reference limits against the MAX160 datasheet, Rev. 0, before connecting the converter to external plant wiring.
Recomendado
Audio-Control and Bias Monitoring
The MAX160CWN+ can be used for slow audio-control or bias monitoring when the measured quantity must be reduced to an 8-bit supervisory value rather than a full-resolution audio stream. For example, it can sample a rectified control or bias node for headroom monitoring, fault detection, or system calibration. The SAR converter’s single-ended input and external reference make it flexible, but the eight-bit output cannot reproduce waveform detail and should not be used as a substitute for an audio-class ADC. Signal conditioning must prevent negative or excessive voltages from reaching the analog input. A slow monitoring channel can also be scanned alongside faster control tasks because 250 kSPS provides more throughput than is required for many supervisory updates.
Recomendado
Portable Sensor Node
The MAX160CWN+ can serve as the ADC in a portable sensor node when the required measurement bandwidth is modest and the controller benefits from an 8-bit parallel interface. A typical implementation samples a resistive sensor through a bridge or conditioning amplifier and transfers each result to a low-power embedded controller. The 18-pin SOIC package is straightforward to assemble, while 250 kSPS throughput allows the node to update more often than the display or logging interval requires. Because this is a CMOS converter intended for sensitive analog measurement, the supply bypass network and analog layout should be designed carefully. Battery-powered designs should also verify operating current and shutdown behavior directly from the manufacturer datasheet rather than inferring them from the conversion rate.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MAX160CWN+ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
MAX160EWN+ is the closest identified drop-in candidate because it shares the 18-pin wide-SOIC format and the same 8-bit, 250 kSPS, single-ended SAR class. Review its complete electrical limits and pin assignments before using it in an existing MAX160CWN+ design. MAX160EWN is another same-family candidate, but its ordering and grade characteristics must be confirmed. MAX160CWN without the plus marking is too close in identity to offer meaningful engineering differentiation, while MAX160CPN+ and MAX160EPN+ may use different package constructions and therefore should not be treated as drop-in choices without footprint verification.
Comparação com alternativas
| Parâmetro | Este produto | MAX160EWN+ | MAX160EWN |
|---|---|---|---|
| Package | 18-pin SOIC | 18-pin WSOIC - same package class | 18-pin WSOIC - same package class |
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 8 bit | 8 bit | 8 bit |
| Conversion Throughput | 250 kSPS | 250 kSPS | 250 kSPS |
| Conversion Time | 4 us | 4 us | 4 us |
| Input Configuration | 1 single-ended input | 1 single-ended input | 1 single-ended input |
| Architecture | Successive approximation (SAR) | Successive approximation (SAR) | Successive approximation (SAR) |
| Output Interface | 8-bit parallel, microprocessor compatible | 8-bit parallel, microprocessor compatible | 8-bit parallel, microprocessor compatible |
| Reference Type | External | External | External |
| Price | Request a quote | Request a quote | Request a quote |
Principais diferenciais
- Direct 8-bit microprocessor-compatible parallel interface (vs MAX160EWN+)
- Single-ended SAR conversion in a conventional 18-pin SOIC (vs MAX160EWN)
- Production CMOS family with a cost-oriented conversion architecture (vs MAX160EWN+)
Notas de projeto
Route the MAX160CWN+ analog input as a short trace directly from the conditioning network to the converter. Keep digital output and control traces away from this path, especially read and chip-select lines that switch rapidly. Use a continuous ground plane, place supply bypass capacitors close to the relevant pins, and place the external reference network where its return current can follow a compact path. Review the final pin and layout guidance in the Analog Devices MAX160 datasheet, Rev. 0, before fabrication.
The 250 kSPS rating does not remove the requirement for adequate signal settling. If the sensor has appreciable output impedance, add a low-noise buffer or sample-and-hold network so the source can charge the internal sampling capacitor within the acquisition interval. Filter the sensor output to remove noise above the bandwidth of interest, but account for filter phase or settling delay in the control-loop response. Confirm acquisition time and source-impedance limits in the manufacturer datasheet before selecting component values.
Do not treat the 8-bit resolution label as a complete accuracy specification. Offset error, gain error, reference accuracy, input noise, PCB leakage, and sensor error all contribute to the final measurement. Use a stable reference, calibration coefficients suited to the complete signal chain, and input protection appropriate for the source. Also verify the exact MAX160CWN+ ordering code against the footprint because MAX160-family parts with similar names can use different package or temperature options.
Informações de conformidade
The manufacturer identifies the MAX160 as a production CMOS device, but the listed product information does not state the individual compliance statuses required for this page. AEC-Q100 is not applicable to this commercial-temperature ADC rather than a qualified or unqualified automotive device.
