TLV1549CP - 10-Bit 38 kSPS Serial SAR ADC | Texas Instruments
N.º da peça: TLV1549CP ✓ AtivoTLV1549CP Visão geral
An ADC is an analog-to-digital converter, a semiconductor that transforms a continuously varying analog voltage into a numeric value for processing, measurement, or control. The TLV1549CP belongs to the ADC hierarchy that includes data converters, mixed-signal ICs, and semiconductors. Its switched-capacitor, successive-approximation architecture is appropriate for applications requiring moderate conversion speed, modest resolution, compact implementation, and a simple serial interface rather than a high-throughput parallel conversion engine.
The main device attributes are a 10-bit conversion resolution, a maximum conversion rate of 38 kSPS, one analog input channel, and a 3.3 V supply identified in distributor data. The 10-bit format provides 1,024 representable codes, while the 38 kSPS rate allows the converter to acquire many samples during short measurement intervals. The integrated sample-and-hold function helps isolate the source during conversion. A three-wire interface reduces the number of signals required between the ADC and a host microcontroller or serial peripheral.
The TLV1549CP uses a switched-capacitor internal conversion architecture and supports digital control through CS, I/O CLOCK, and DATA OUT. The CS signal can place the device into a controlled state when multiple converters share a bus, while the combined clock-and-data arrangement supports compact serial communication. Verified sources also identify compatibility with the TLC1549 and TLC1549x terminal arrangement, making the interface family relevant for designs migrating between older and newer ADC families.
Typical uses include low-speed sensor acquisition, industrial process measurement, battery-powered instrumentation, temperature monitoring, and embedded control systems. The single analog input is suitable when the system does not require simultaneous sampling of several channels. The serial interface also fits compact controller layouts where a parallel ADC bus would add pins, routing complexity, and unnecessary conversion throughput.
Designers should match the ADC reference, analog input range, clock timing, and supply voltage to the selected host and sensor. Because the verified excerpt does not provide complete acquisition-time, input-capacitance, reference-voltage, or absolute-maximum-rating tables, those values must be confirmed in the manufacturer datasheet before release. PCB layout should keep the analog input path short and provide a quiet return path around the converter.
This page consolidates the verified 10-bit, 38 kSPS, single-input SAR facts with interface-family compatibility, price evidence, and a practical selection framework. It distinguishes confirmed product attributes from parameters that require direct datasheet verification, helping engineers identify whether the TLV1549CP fits a given measurement system without confusing terminal compatibility with complete functional equivalence.
Alternativas drop-in para TLV1549CP — 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 TLV1549CP (mesmo formato e footprint) — diferindo em Package, Sample-and-Hold Function, Architecture, Mounting Type, Output Type.
TLC1549CP
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TLC1549IP
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TLV1549IP
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →TLV1549ID
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →TLC1549ID
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TLV1549CP Classificações máximas e características elétricas
| Resolução | 10 bit |
| Conversion Rate | 38 kSPS |
| Architecture | Switched-capacitor successive-approximation ADC |
| Analog Input Channels | 1 channel |
| Tipo de saída | Serial |
| Sample-and-Hold Function | Inherent |
| Interface | 3-wire serial interface |
| Digital Inputs | 2 inputs |
| Digital Output | 3-state output |
| Control Signal | CS |
| Clock Signal | I/O CLOCK |
| Data Signal | DATA OUT |
| Tensão de alimentação | 3.3 V |
| Encapsulamento | PDIP-8 (P) |
| Contagem de pinos | 8 pins |
| Terminal Compatibility | Compatible with TLC1549 and TLC1549x |
Guia de Configuração de Pinos do TLV1549CP pdip-8 (p)
Configuração de pinos para TLV1549CP (pacote pdip-8 (p)). 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 TLV1549CP.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TLV1549CP é adequado para 6 aplicaçãos: Industrial Sensor Acquisition, Temperature Monitoring System, Battery-Powered Instrumentation, Embedded Process Control, Consumer Equipment Control, Precision Control and Measurement.
Industrial Sensor Acquisition
The TLV1549CP fits low-speed industrial sensor acquisition when the measured signal changes within the capability of a 38 kSPS SAR converter and 10-bit resolution is sufficient. Its single analog input supports pressure, temperature, or level transducer conditioning, while the serial output limits the number of connections required to an embedded controller. The inherent sample-and-hold function helps separate acquisition from conversion, and the three-wire CS, I/O CLOCK, and DATA OUT interface simplifies firmware-driven sampling. The important trade-off is that a 10-bit code provides about 1,024 levels, so input scaling and reference accuracy directly determine usable resolution. A multiplexed or higher-resolution converter may be preferable when several sensors must be measured rapidly or fine changes must be resolved without averaging.
Recomendado
Temperature Monitoring System
The TLV1549CP is suitable for a temperature-monitoring system that does not require more than 38 kSPS conversion speed. A conditioned thermistor or RTD signal can be connected to the single analog input, while the 10-bit result supplies 1,024 digital levels for display, alarm, or fan-control decisions. Its serial interface reduces pin count on compact embedded boards and its sample-and-hold function supports repeatable acquisition timing. The main engineering constraint is resolution rather than speed: 10-bit quantization may require calibration or averaging when temperature changes are small. Confirm the converter's input range, reference requirements, and acquisition time in the datasheet, and place the analog trace away from switching nodes to prevent measurement errors.
Recomendado
Battery-Powered Instrumentation
The TLV1549CP can serve as the measurement front end in battery-powered instrumentation when 38 kSPS is faster than the application's required sampling cadence. A 10-bit conversion result and one analog channel support compact, low-pin-count instrument designs, while the serial interface permits intermittent operation controlled by chip select. The 3.3 V supply identified in the distributor data aligns with many embedded systems. However, total battery life depends on reference current, analog signal conditioning, and duty cycle, none of which can be quantified from the supplied excerpt. Use shutdown or standby control where available, verify input bias requirements, and confirm that the sensor can recharge between samples so the converter does not become the limiting power consumer.
Recomendado
Embedded Process Control
The TLV1549CP is appropriate for embedded process-control loops that monitor one analog variable and do not need the throughput of a rapid-successive-approximation or pipeline ADC. At 38 kSPS, it can sample a relatively slow process signal, and its 10-bit output can feed a microcontroller for threshold control, filtering, or actuator adjustment. The three-wire interface and 8-pin PDIP package support compact through-hole or mixed-technology control boards. Since the converter has only one analog input, multiplexing may be required for multiple variables, introducing extra settling time and error. The design should also budget conversion latency, use a stable reference, and isolate the analog path from relays, motor drivers, and switching supplies that could corrupt the measured process value.
Recomendado
Consumer Equipment Control
The TLV1549CP can be used in consumer equipment that measures one slowly changing analog condition, such as a control panel, appliance setting, or simple system-health input. Its 38 kSPS capability provides more conversion margin than many slow human-interface measurements require, while 10-bit resolution is adequate for coarse sensing and status indication. The serial interface reduces wiring compared with a parallel ADC and the DIP package can simplify prototype assembly and service. For a production design, assess whether a smaller surface-mount package or lower-power regulator would provide a better board-level result. Also confirm the analog input range and reference arrangement because a consumer enclosure may introduce temperature drift, grounding differences, and EMI that are not represented in basic component specifications.
Recomendado
Precision Control and Measurement
The TLV1549CP can support low-bandwidth precision-control and measurement functions where a 10-bit ADC operating at up to 38 kSPS provides adequate resolution. Examples include setpoint monitoring, gain confirmation, and slow feedback signals in laboratory or industrial equipment. The inherent sample-and-hold function and switched-capacitor SAR architecture make sequential sampling predictable, while serial data transfer avoids allocating a wide parallel bus. The main limitation is that precision depends on the complete analog signal chain: reference error, source impedance, noise, calibration, and grounding can outweigh the nominal 10-bit resolution. Confirm input capacitance and acquisition timing, use a local reference bypass strategy recommended by the datasheet, and average only when the source remains stable during the sampling interval.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TLV1549CP — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TLC1549CP | TLC1549IP | TLV1549IP | TLV1549ID | TLC1549ID |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | PDIP-8 (P) | PDIP-8 (P) | PDIP-8 (P) | PDIP-8 (P) | PDIP-8 (P) | PDIP-8 (P) |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Conversion Rate | 38 kSPS | 38 kSPS | 38 kSPS | 38 kSPS | 38 kSPS | 38 kSPS |
| Architecture | Switched-capacitor SAR | Successive-approximation ADC | Successive-approximation ADC | Switched-capacitor SAR | Switched-capacitor SAR | Successive-approximation ADC |
| Analog Input Channels | 1 channel | 1 channel | 1 channel | 1 channel | 1 channel | 1 channel |
| Output Interface | 3-wire serial output | 3-wire serial output | 3-wire serial output | 3-wire serial output | 3-wire serial output | 3-wire serial output |
Principais diferenciais
- Provides the full 38 kSPS headline conversion rate in an eight-pin PDIP (vs TLC1549IP)
- Shares a confirmed terminal-compatible interface with the TLC1549 family (vs TLC1549CP)
- Combines a single analog channel with an inherent sample-and-hold function (vs TLV1549IP)
- Uses a compact three-wire serial interface instead of a parallel data bus (vs TLV1549ID)
Notas de projeto
Route the single analog input as a short trace directly from the sensor or conditioning stage, and keep it away from clock, relay, and switching-supply nets. The verified data does not provide the input-capacitance or acquisition-time tables, so source impedance and the required settling period must be taken from the manufacturer datasheet. A short path reduces susceptibility to capacitive loading and helps preserve the available 10-bit measurement quality.
Treat CS, I/O CLOCK, and DATA OUT as a coordinated three-wire interface rather than independent asynchronous signals. The verified description confirms the functions but does not provide complete timing diagrams, so the host firmware should use the manufacturer-defined clock and chip-select sequence. Avoid relying on generic SPI assumptions because this converter combines clock and data-control functions that must match the TLV1549 timing protocol.
The distributor data identifies a 3.3 V supply for TLV1549CP. Decouple the analog and digital supplies locally according to the manufacturer datasheet, and verify the reference-voltage arrangement and bypass requirements before layout release. Reference stability directly influences the 10-bit result, while excessive supply or reference noise can turn unused codes into visible measurement error even when the converter itself operates at 38 kSPS.
Do not treat terminal compatibility as proof that every TLC1549-family timing and electrical parameter is identical to TLV1549CP. Check acquisition time, input range, reference requirements, operating-temperature limits, and absolute maximum ratings for the exact replacement orderable. The verified data supports the 10-bit, 38 kSPS, one-input architecture and terminal compatibility, but it does not establish every timing parameter needed to approve a substitution.
Informações de conformidade
The supplied verified excerpts do not state RoHS, REACH, lead-free, halogen-free, or conflict-mineral compliance. The device is a general-purpose commercial ADC and is not identified as an automotive-qualified AEC-Q100 part.
