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TI REF6233IDGKR

Produttore
TI
Cod. Prod.
REF6233IDGKR
Cod. LCSC
C2157040
Imballo
VSSOP-8-0.65mm
Numero Cliente
Attr. chiave
High-precision voltage reference integrated with ADC driver buffer
Scheda TecnicaTI REF6233IDGKR
Conformità RoHS2 documenti disponibili
Parti alternative5
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Specifiche del Prodotto

Tutto
TipoDescrizione
CategoriaIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Reference
ProduttoreTI
ImballoVSSOP-8-0.65mm
Output Voltage3.3V
Quiescent Current1.1mA
Tolerance±0.05%
Voltage - Supply3.55V~5.5V
Minimum Cathode Current for Regulation-
Reference TypeSeries
Noise - 1/10Hz to 10Hz3uVp-p
Output Current4mA
Operating Temperature0℃~+70℃@(Ta)
FeaturesEnable/disable;Built-in output buffer
Noise - 10Hz to 10kHz-
Output TypeFixed
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Descrizione

Traduzione AI

The voltage references in the REF6000 series integrate low-output-impedance buffers, which enable users to directly drive the reference (REF) pins of precision data converters while maintaining linearity, distortion, and noise performance. Most precision SAR and Δ-Σ analog-to-digital converters (ADCs) switch binary-weighted capacitors to the REF pin during the conversion process. To support this dynamic load, the output of the voltage reference must be buffered by a low-output-impedance, high-bandwidth buffer. The REF6000 series devices are well-suited (but not limited to) for driving the REF pins of the ADS88xx series SAR ADCs, the ADS127xx series Δ-Σ ADCs, and precision digital-to-analog converters (DACs). When driving the REF pin of the ADS8881, the output voltage of the REF6000 series does not drop below 1 LSB (18-bit), even during the first conversion. This feature is extremely useful for burst-mode, event-triggered isochronous sampling, and variable-sampling-rate data acquisition systems. Various REF62xx variants in the REF6000 series specify a maximum temperature drift (only 3 ppm/°C) and offer an initial accuracy of 0.05% for the combination of the voltage reference and the low-output-impedance buffer.

Caratteristiche

Traduzione AI
  • Excellent temperature drift performance: 3ppm/°C (max) from 0°C to +70°C
  • Ultra-low noise
  • Total noise: 5μV<sub>RMS</sub> (with 47μF capacitor); 1/f noise (0.1Hz to 10Hz): 3μV<sub>PP</sub>/V
  • Integrated ADC driver buffer with low output impedance: <50mΩ (0kHz - 200kHz)
  • Enables 18-bit accurate sampling with ADS8881
  • Burst mode DAQ system support
  • Low supply current: 820μA
  • Low shutdown current: 1μA
  • High initial accuracy: ±0.05%
  • Ultra-low noise and distortion SNR: 100.5dB, THD: -125dB (ADS8881)
  • SNR: 106dB, THD: -120dB (ADS127L01)
  • Output current drive capability: ±4mA
  • Programmable short-circuit current
  • Verified for driving the REF pin of ADS88xx SAR ADC and ADS127xx wideband Δ-Σ ADC families

Applicazioni

Traduzione AI
  • ATE testers and oscilloscopes
  • Test and measurement equipment
  • PLC analog input modules
  • Medical devices
  • Precision data acquisition systems