Information

86 | Signal Chain Guide 2013 Texas Instruments
Voltage References
Voltage References
Get more information: www.ti.com/product/Part Number
(REF5020, REF5025, REF5030, REF5040, REF5045, REF5050, REF5010)
3ppm/°C Drift, 0.05% Accurate, Low-Noise, Precision Series Voltage References
REF5020, REF5025, REF5030, REF5040, REF5045, REF5050, REF5010
The REF50xx brings a new level of precision to the TI series voltage reference line.
Offering 3 ppm/°C (max) drift and 0.05% initial accuracy and very low noise, the
REF50xx is designed for industrial, medical and test applications that require perfor-
mance over temperature.
REF50xx package diagram
Key Features
• Highaccuracy:0.05%
• Lowtemperaturedrift:3ppm/°C(max)
• Verylownoise:3µV
PP
/V
• Highoutputcurrent:±10mA
• Widesupplyrange:2.7Vto18V
• Industrialtemperaturerange:
–40°C to +125°C
•
Packaging:SO-8,MSOPcomingsoon
Applications
• Testandmeasurement
• 16-bitdataacquisitionsystems
• Medicalandpatientmonitoring
• Industrialprocesscontrol
1
2
3
4
8
7
6
5
DNC
(1)
NC
(2)
TRIM/NR
DNC
(1)
V
IN
TEMP
GND
V
OUT
REF50xx
SO-8, MSOP-8
Model Voltage Out
REF5020 2.048 V
REF5025 2.5 V
REF5030 3.0 V
REF5040 4.096 V
REF5045 4.5 V
REF5050 5 V
REF5010 10 V
Voltage References
Device Description Output (V)
Initial
Accuracy
(%)
(max)
Drift
(ppm/°C)
(max)
Long-Term
Stability
(ppm/1000hr)
(typ)
Noise
0.1 to 10Hz
(µVp-p/V)
(typ)
I
Q
(mA)
(max)
Temperature
Range
(°C)
Output
Current
(mA)
HiRel
Avail. Package Price*
REF50xx High Accuracy Bandgap
Reference
2.048, 2.5, 3.0,
4.096, 4.5, 5, 10
0.05 3 5 3 1 –40 to +125 ±10 Y SOIC-8 2.95
REF50xxA High Accuracy Bandgap
Reference
2.048, 2.5, 3.0,
4.096, 4.5, 5, 10
0.1 8 5 3 1 –40 to +125 ±10 Y SOIC-8 1.35
REF33xx microPower, Tiny
Bandgap
1.25, 1.8, 2.048,
2.5, 3.0, 3.3
0.15 30 — 28 0.005 –40 to +125 ±5 N SC70,
SOT23-3
0.85
REF32xx Low Drift, Low Power,
Small Bandgap
1.25, 2.048, 2.5
3.0, 3.3, 4.096
0.2 7 55 13 0.120 –40 to +125 ±10 Y SOT23-6 1.70
REF31xx Series Bandgap 1.25, 2.048, 2.5
3.0, 3.3, 4.096
0.2 15 70 13 0.115 –40 to +125 ±10 N SOT23-3 1.10
REF30xx Series Bandgap 1.25, 2.048, 2.5,
3.0, 3.3, 4.096
0.2 50 24 11 0.05 –40 to +125 25 Y SOT23-3 0.60
REF29xx Series Bandgap 1.25, 2.048, 2.5,
3.0, 3.3, 4.096
2 100 24 11 to 16 0.05 –40 to +125 25 N SOT23-3 0.49
REF02A Low Drift, Buried Zener 5 0.3 15 50 0.8 1.4 –40 to +85 +21, –0.5 N SOIC, PDIP 1.45
REF02B Low Drift, Buried Zener 5 0.2 10 50 0.8 1.4 –40 to +85 +21, –0.5 N SOIC, PDIP 2.05
REF102A Low Drift, Buried Zener 10 0.1 10 20 0.5 1.4 –25 to +85 +10, –5 N SOIC, PDIP 1.75
REF102B Low Drift, Buried Zener 10 0.05 5 20 0.5 1.4 –25 to +85 +10, –5 N SOIC, PDIP 3.25
REF102C Ultra-Low Drift,
Buried Zener
10 0.025 2.5 20 0.5 1.4 –25 to +85 +10, –5 N SOIC, PDIP 4.50
LM4140 Precision Micropower
Low Dropout Voltage
Reference
1.024, 1.25,
2.048, 2.5, 4.096
0.1 10 60 2.2 0.4 0 to 70 8 N 8SOIC 1.65
LM4132 Precision Low Dropout
Voltage Reference
1.8, 2.048, 2.5, 3,
3.3, 4.096
0.05 30 50 170 0.1 –40 to 125 20 N SOT23-5 0.78
LM4128 Precision Micropower
Series Voltage Reference
1.8, 2.048, 2.5, 3,
3.3, 4.096
0.1 100 50 170 0.1 –40 to 125 20 Y SOT23-5 0.52
*Suggested resale price in U.S. dollars in quantities of 1,000. See www.ti.com/hirel for HiRel options.