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See Technical Specifications

REF6133IDGKT +BOM

3.3-V, 8-ppm/°C high-precision voltage reference with integrated buffer & enable pin

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

REF6133IDGKT
Datasheet:

REF6133IDGKT Datasheet (PDF)
VO (V):

3.3
Initial Accuracy (max) (%):

0.05
Temp Coeff (max) (ppm/°C):

8
Vin (min) (V):

3.55
EDA/CAD Models:

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Tel: +852 95804164

REF6133IDGKT General Description

The REF6133IDGKT is a versatile voltage reference from the REF6000 family, designed to drive precision data converters with its integrated low output impedance buffer. This feature allows for optimal performance in SAR and Delta-Sigma ADCs, ensuring linearity, distortion, and noise control during the conversion process. With a high-bandwidth buffer, the REF6133IDGKT can effectively support the dynamic load of the REF pin, making it compatible with a range of ADCs and DACs. Moreover, its ability to maintain output voltage within 1LSB (18-bit) with minimal droop is particularly advantageous for applications requiring burst-mode or event-triggered sampling. The REF6133IDGKT boasts a maximum temperature drift of just 8 ppm/°C and initial accuracy of 0.05%, making it a reliable choice for temperature-sensitive systems. For detailed comparisons with other REF6000 variants, refer to the Device Comparison Table

Key Features

Excellent Temperature Drift Performance
- 8 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

Specifications

VO (V)	3.3	Initial accuracy (max) (%)	0.05
Temp coeff (max) (ppm/°C)	8	Vin (min) (V)	3.55
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)	9.9	Iout/Iz (max) (mA)	4
Operating temperature range (°C)	-40 to 125	Shutdown current (ISD) (typ) (µA)	1
feature-reference-type	Precision	feature-topology	Series
feature-initial-accuracy	0.05%	feature-maximum-temperature-coefficient	8ppm/°C
feature-output-voltage-v	3.3	feature-maximum-input-voltage-v	6
feature-maximum-output-current-ma	4	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	8
feature-cecc-qualified		feature-esd-protection
feature-escc-qualified		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	Yes
feature-svhc-exceeds-threshold	No