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See Technical Specifications

REF6050IDGKT

Series Voltage Reference IC Fixed 5V V ±0.05% 3 mA 8-VSSOP

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

REF6050IDGKT
Datasheet:

REF6050IDGKT Datasheet (PDF)
Reference Type:

Series
Output Type:

Fixed
Voltage - Output (Min/Fixed):

5V
Current - Output:

3 mA
EDA/CAD Models:

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REF6050IDGKT General Description

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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Key Features

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

Application

Power Management, Medical

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Reference	Series	-
Reference Type	Series	Output Type	Fixed
Voltage - Output (Min/Fixed)	5V	Current - Output	3 mA
Tolerance	±0.05%	Temperature Coefficient	5ppm/°C
Noise - 0.1Hz to 10Hz	3µVp-p	Noise - 10Hz to 10kHz	-
Voltage - Input	5.3V ~ 5.5V	Current - Supply	1.15mA
Operating Temperature	-40°C ~ 125°C (TA)	Mounting Type	Surface Mount
Base Product Number	REF6050