ADS8320E/2K5 - 16-Bit 100kHz SAR ADC | Texas Instruments
N.º de pieza: ADS8320E/2K5 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.807 | $5,81 |
| 10 | $5.807 | $58,07 |
| 100 | $5.807 | $580,70 |
| 500 | $5.807 | $2.903,50 |
| 1.000 | $5.807 | $5.807,00 |
ADS8320E/2K5 Descripción general
An ADC is an analog-to-digital converter, a semiconductor that samples a continuous voltage and produces a corresponding numeric code. This ADS8320 belongs to the SAR ADC family, in which a successive-approximation conversion cycle progressively resolves the input voltage. Compared with flash, pipeline, and sigma-delta architectures, SAR ADCs are commonly selected for moderate resolution, compact implementation, low power, and direct sequential data output.
The headline characteristics are 16-bit resolution, a 100-kHz sampling rate, and operation from 2.7 V to 5.25 V. The device uses one SAR input, offers a differential input, and can operate with very little power even at the full 100-kHz data rate. A 3-uA maximum power-down current further supports low-duty-cycle acquisition. Its synchronous serial interface simplifies connection to microcontrollers and dedicated digital controllers while supporting SPI/SSI-compatible signaling.
The reference-voltage arrangement provides another key design dimension: TI states that the reference can be set to any level from 500 mV to VCC. Full-scale accuracy therefore depends not only on the ADC but also on reference quality, analog front-end conditioning, source impedance, and printed-board contamination. Designers must preserve the differential input topology and account for acquisition time when planning conversion timing around the 100-kHz maximum data rate.
Typical uses include battery-powered instrumentation, portable industrial sensors, process monitoring, low-energy edge acquisition, and embedded measurement systems. The VSSOP package reduces board area, but analog layout still requires a quiet reference, controlled return paths, and decoupling close to the supply pins. The device is best suited to applications whose required bandwidth is within the SAR ADC's 100-kHz sampling capability and whose dynamic range benefits from a 16-bit result.
For implementation, verify the complete pinout and timing values in the manufacturer datasheet rather than inferring them from the VSSOP outline. Keep the analog input path short, place bypass capacitors close to the device, and avoid routing digital clock and serial-data traces beneath sensitive analog nodes. Validate gain, offset, and noise performance with the intended source impedance and reference implementation.
This product page combines the verified TI product information, manufacturer datasheet link, distributor references, package information, and practical engineering guidance. It is intended to help engineers identify whether the ADS8320E/2K5 fits a low-power, 16-bit SAR measurement design before purchasing or committing to a PCB layout.
Alternativas directas para ADS8320E/2K5 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ADS8320E/2K5 (mismo factor de forma y huella) — difiere en Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADS8321E/2K5
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADS8320EB/250G4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADS8320E/2K5 Valores máximos y características eléctricas
| ADC Type | SAR sampling analog-to-digital converter |
| Resolución | 16 bit |
| Frecuencia de muestreo | 100 kHz |
| Number of Inputs | 1 input |
| Input Architecture | Differential |
| Supply Range | 2.7 V to 5.25 V |
| Manufacturer Stated Operation Range | 2 V to 5.25 V |
| Interfaz | Synchronous serial, SPI/SSI compatible |
| Reference Voltage Range | 500 mV to VCC |
| Power-Down Current | 3 uA maximum |
| Encapsulado | 8-pin VSSOP |
| Package Family | VSSOP surface-mount package |
| Sampling Architecture | Successive-approximation register |
| Data Rate at Full-Speed Operation | 100 kHz |
| Operating Application | Portable and battery-operated systems |
| Power Consumption | Very low power at 100 kHz and 10 kHz operation |
| RoHS Compliance | unknown |
| REACH Compliance | unknown |
Guía de configuración de pines de ADS8320E/2K5 vssop surface-mount package
Configuración de pines para ADS8320E/2K5 (encapsulado vssop surface-mount package). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para ADS8320E/2K5.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ADS8320E/2K5 es adecuado para 6 aplicacións: Battery-Powered Sensor Acquisition, Portable Process Monitoring, Industrial Current Measurement, Embedded Data Logger, Precision Analog Measurement Front End, Remote IoT Monitoring.
Battery-Powered Sensor Acquisition
The ADS8320E/2K5 fits battery-powered sensor acquisition because it combines a 16-bit SAR conversion format with operation from 2.7 V to 5.25 V ensured and a 3-uA maximum power-down current. Place it between a conditioned sensor signal and a low-power microcontroller that receives serial results over the SPI/SSI-compatible interface. Its 100-kHz sampling capability supports periodic measurements while avoiding continuous high-rate conversion when the application can remain in power-down mode. The key design trade-off is that battery life depends on the reference, analog front end, and controller as well as the ADC itself.
Recomendado
Portable Process Monitoring
Use the ADS8320E/2K5 in portable process monitoring when measurements require higher resolution than an 8-bit or 12-bit interface but do not demand continuous high-bandwidth sampling. Its 16-bit SAR architecture, 100-kHz maximum rate, and differential input provide a compact measurement channel for pressure, temperature, or current signals. A microcontroller can issue conversion timing and read data through the synchronous SPI/SSI-compatible serial interface. Differential routing should be kept symmetric, and the reference must remain within the verified 500-mV-to-VCC range.
Recomendado
Industrial Current Measurement
The ADS8320E/2K5 can digitize a conditioned low-voltage current signal in an industrial measurement system. Its differential input is useful when the sensor produces two related signals rather than one ground-referenced node, while 16-bit resolution preserves fine code detail for control and monitoring. The 100-kHz sampling rate is adequate for many non-high-frequency current loops when paired with an appropriate amplifier and anti-alias filter. Validate gain, common-mode range, source settling, and reference accuracy before claiming accuracy beyond the datasheet limits.
Recomendado
Embedded Data Logger
The ADS8320E/2K5 is appropriate for an embedded data logger that records slow or burst-sampled analog measurements. The SAR converter provides a direct sequential digital result, and its low-power operation allows the controller to wake, configure the analog path, initiate conversion, store data, and return to sleep. The 16-bit format is useful for environmental, laboratory, and equipment monitoring where quantization error matters. Because the supplied information does not include complete timing values, firmware should derive conversion and serial-transfer timing from the manufacturer datasheet.
Recomendado
Precision Analog Measurement Front End
Use the ADS8320E/2K5 as the conversion element in a precision analog front end when the input can be conditioned into the device's differential range. The 16-bit resolution and 100-kHz sampling capability provide a useful combination for instrumentation, laboratory equipment, and low-frequency control systems. The analog front end should include low-noise amplification, input filtering, and source-impedance control so the SAR input settles within the acquisition window. The compact 8-pin VSSOP helps reduce board area, but it does not relax the need for careful reference and return-path layout.
Recomendado
Remote IoT Monitoring
The ADS8320E/2K5 can serve as the analog measurement channel in a remote IoT node that periodically reports sensor status. Its low-power SAR architecture, 2.7 V to 5.25 V ensured supply region, differential input, and serial digital output are well matched to a compact embedded acquisition block. A wireless-capable controller can process and transmit the converted code, while the ADC remains disabled between samples. The design must still manage analog noise, reference stability, clock jitter, and data integrity across the remote enclosure.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADS8320E/2K5 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ADS8321E/2K5 | ADS8320EB/250G4 |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
Diferenciadores clave
- Low-power SAR conversion for portable measurement (frente a ADS8321E/2K5)
- Specified 100-kHz sampling operation (frente a ADS8320EB/250G4)
- Differential input and flexible reference range (frente a ADS8321E/2K5)
Notas de diseño
The verified TI description identifies the ADS8320E/2K5 as a micropower converter and specifies a 3-uA maximum power-down current. In a duty-cycled design, enable conversion only when the analog source is stable and the acquisition timing budget permits. Size the local bypass network for the actual reference and supply impedance, then verify startup behavior and conversion accuracy across battery-voltage variation. The ADC cannot deliver low power if the reference, amplifier, or controller remains continuously active.
Route the differential input as a compact, symmetric pair and keep the analog return path continuous. Place input filtering and any conditioning amplifier close to the ADS8320E/2K5, and place decoupling capacitors near the device supply pins. Avoid switching-regulator nodes, high-current return paths, and digital clock traces beneath the analog input or reference area. The supplied web data does not provide a verified layout recommendation, so these are general implementation practices rather than manufacturer-specific figures.
Do not confuse TI's stated operation from 2 V to 5.25 V with the ensured 2.7 V to 5.25 V specification. For production designs, preserve acquisition time and source settling before the conversion command, and do not infer complete pin functions from the distributor package description. Confirm the VSSOP pinout, reference limits, digital timing, and electrical characteristics in the official datasheet. Also verify that any replacement has the same pin mapping and timing—not merely the same resolution or package label.
Información de cumplimiento
The supplied verified web data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for ADS8320E/2K5. The ADC is not presented in the supplied data as an automotive-qualified part.
