ADC141S626
ADC de micro potencia de 14 bits, 50 kSPS a 250 kSPS, entrada diferencial
ADC141S626
- True Differential Inputs
- Guaranteed Performance from 50 kSPS to 250 kSPS
- External Reference
- Zero-Power Track Mode
- Wide Input Common-Mode Voltage Range
- Operating Temperature Range of −40°C to +85°C
- SPI™/QSPI™/MICROWIRE/DSP Compatible Serial Interface
Key Specifications
- Conversion Rate: 50 kSPS to 250 kSPS
- INL: ± 0.95 LSB (Max)
- DNL: ± 0.95 LSB (Max)
- SNR: 82 dBc (Max)
- THD: -90 dBc (Typ)
- ENOB: 13.3 Bits(Min)
- Power Consumption:
- 200 kSPS, 3V: 2.0 mW (Typ)
- 250 kSPS, 5V: 4.8 mW (Typ)
- Power-Down, 3V: 4 µW (Typ)
- Power-Down, 5V: 13 µW (Typ)
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The ADC141S626 is a 14-bit, 50 kSPS to 250 kSPS sampling Analog-to-Digital (A/D) converter. The converter is based on a successive-approximation register (SAR) architecture where the differential nature of the analog inputs is maintained from the internal sample-and-hold circuits throughout the A/D converter to provide excellent common-mode signal rejection. The ADC141S626 features an external reference that can be varied from 1.0V to VA. It also features a zero-power track mode where the ADC is consuming the minimum amount of supply current while the internal sampling capacitor is tracking the applied analog input voltage.
The serial data output is binary 2's complement and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces. The conversion result is clocked out by the serial clock input and is the result of the conversion currently in progress; thus, ADC141S626 has no latency.
The ADC141S626 may be operated with independent analog (VA) and digital input/output (VIO) supplies. VA and VIO can range from 2.7V to 5.5V and can be set independent of each other. This allows a user to maximize performance and minimize power consumption by operating the analog portion of the ADC at a VA of 5V while communicating with a 3V controller on the digital side. With a 3V source, the power consumption when operating at 200 kSPS is 2.0 mW. With a 5V source, the power consumption when operating at 250 kSPS is 4.8 mW. The power consumption drops down to 4 µW and 13 µW respectively when the ADC141S626 enters acquisition (power-down) mode. The differential input, low power consumption, and small size make the ADC141S626 ideal for direct connection to bridge sensors and transducers in battery operated systems or remote data acquisition applications.
Operation is guaranteed over the temperature range of −40°C to +85°C and clock rates of 0.9 MHz to 4.5 MHz. The ADC141S626 is available in a 10-lead VSSOP package.
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Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | 14-Bit, 50 kSPS to 250 kSPS, Differential Input, Micro Power A/D Converter datasheet (Rev. B) | 19 mar 2013 | |
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 may 2015 | ||
User guide | LMP2021MAEVAL - Bridge Sensor Instrumentation Amp Evaluation Board User Guide (Rev. A) | 22 abr 2013 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
ANALOG-ENGINEER-CALC — Calculadora para ingenieros analógicos
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
TINA-TI — Programa de simulación analógica basado en SPICE
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
VSSOP (DGS) | 10 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
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Soporte y capacitación
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