REF6041

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Hochpräzise Spannungsreferenz, 4,096 V, 5 ppm/°C, mit integriertem Puffer & Aktivierungspin

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Datenblatt

document-pdfAcrobat REF60xx High-Precision Voltage Reference With Integrated ADC Drive Buffer datasheet (Rev. B) (Englisch) PDF | HTML

REF6041

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

VO (V)

4.096

Initial accuracy (max) (%)

0.05

Temp coeff (max) (ppm/°C)

Vin (min) (V)

4.35

Vin (max) (V)

5.5

Iq (typ) (mA)

0.82

Rating

Catalog

Features

Integrated low-output impedance buffer

LFN 0.1 to 10 Hz (typ) (µVPP)

12.288

Iout/Iz (max) (mA)

Operating temperature range (°C)

-40 to 125

Shutdown current (ISD) (typ) (µA)

VO (V)

4.096

Initial accuracy (max) (%)

0.05

Temp coeff (max) (ppm/°C)

Vin (min) (V)

4.35

Vin (max) (V)

5.5

Iq (typ) (mA)

0.82

Rating

Catalog

Features

Integrated low-output impedance buffer

LFN 0.1 to 10 Hz (typ) (µVPP)

12.288

Iout/Iz (max) (mA)

Operating temperature range (°C)

-40 to 125

Shutdown current (ISD) (typ) (µA)

VSSOP (DGK)

14.7 mm² 3 x 4.9

Excellent Temperature Drift Performance
- 5 ppm/°C (max) from –40°C to +125°C
Extremely Low Noise
- Total Noise: 5 µV_RMS With 47-µF Capacitor
- 1/f Noise (0.1 Hz to 10 Hz): 3 µV_PP/V
Integrated ADC Drive Buffer
- Low Output Impedance: < 50 mΩ (0-200 kHz)
- First Sample Precise to 18 Bits With ADS8881
- Enables Burst-Mode DAQ Systems
Low Supply Current: 820 µA
Low Shutdown Current: 1 µA
High Initial Accuracy: ±0.05%
Very-Low Noise and Distortion
- SNR: 100.5 dB, THD: –125 dB (ADS8881)
- SNR: 106 dB, THD: –120 dB (ADS127L01)
Output Current Drive: ±4 mA
Programmable Short-Circuit Current
Verified to Drive REF Pin of ADS88xx family of SAR ADCs and ADS127xx family of Wideband ΔΣ ADCs

Excellent Temperature Drift Performance
- 5 ppm/°C (max) from –40°C to +125°C
Extremely Low Noise
- Total Noise: 5 µV_RMS With 47-µF Capacitor
- 1/f Noise (0.1 Hz to 10 Hz): 3 µV_PP/V
Integrated ADC Drive Buffer
- Low Output Impedance: < 50 mΩ (0-200 kHz)
- First Sample Precise to 18 Bits With ADS8881
- Enables Burst-Mode DAQ Systems
Low Supply Current: 820 µA
Low Shutdown Current: 1 µA
High Initial Accuracy: ±0.05%
Very-Low Noise and Distortion
- SNR: 100.5 dB, THD: –125 dB (ADS8881)
- SNR: 106 dB, THD: –120 dB (ADS127L01)
Output Current Drive: ±4 mA
Programmable Short-Circuit Current
Verified to Drive REF Pin of ADS88xx family of SAR ADCs and ADS127xx family of Wideband ΔΣ ADCs

The REF6000 family of voltage references have an integrated low output impedance buffer that enable the user to directly drive the REF pin of precision data converters, while preserving linearity, distortion, and noise performance. Most precision SAR and Delta-Sigma ADCs, switch binary-weighted capacitors onto the REF pin during the conversion process. In order to support this dynamic load the output of the voltage reference must be buffered with a low-output impedance (high-bandwidth) buffer. The REF6000 family devices are well suited, but not limited, to drive the REF pin of the ADS88xx family of SAR ADCs, and ADS127xx family of delta-sigma ADCs, as well as other digital-to-analog converters (DACs).

The REF6000 family of voltage references are able to maintain an output voltage within 1LSB (18-bit) with minimal droop, even during the first conversion while driving the REF pin of the ADS8881. This feature is useful in burst-mode, event-triggered, equivalent-time sampling, and variable-sampling-rate data-acquisition systems. The REF60xx variants of REF6000 family specify a maximum temperature drift of just 5 ppm/°C and initial accuracy of 0.05% for both the voltage reference and the low output impedance buffer combined. For various temperature drift options in REF6000 family, see the Device Comparison Table.

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Alle anzeigen 3

	Typ	Titel		Datum
*	Data sheet	REF60xx High-Precision Voltage Reference With Integrated ADC Drive Buffer datasheet (Rev. B)	PDF \| HTML	29 Aug 2016
	Technical article	Balancing ADC size, power, resolution and bandwidth in precision data-acquisition	PDF \| HTML	03 Dez 2021
	E-book	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		28 Jun 2019

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