REF191ESZ Analog Devices Inc, REF191ESZ Datasheet - Page 19

• Manufacturer Part Number: REF191ESZ
• Description: IC VOLT REF LDO 2.048V 8SOIC
• Manufacturer: Analog Devices Inc
• Series: REF19r
• Type: Voltage Referencer

Specifications of REF191ESZ

• Temperature Coefficient: 5ppm/°C
• Reference Type: Series
• Voltage - Output: 2.048V
• Tolerance: ±2mV
• Voltage - Input: 3 ~ 15 V
• Number Of Channels: 1
• Current - Quiescent: 45µA
• Current - Output: 30mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Topology: Series
• Input Voltage: 3V To 15V
• Reference Voltage: 2.048V
• Reference Voltage Tolerance: 2mV
• Voltage Reference Case Style: SOIC
• No. Of Pins: 8
• Current, Output: 30 mA
• Current, Supply: 45 μA
• Package Type: SOIC-8
• Regulation, Line: 5 ppm/V
• Regulation, Load: 5 ppm/mA
• Regulator Type: Low Dropout
• Resistance, Thermal, Junction To Case: 43 °C/W
• Temperature, Operating, Range: -40 to +85 °C
• Voltage, Dropout: 1.25 V
• Voltage, Noise: 20 μVp-p
• Voltage, Output: 2.048 V
• Voltage, Supply: 3.3 V
• Fixed / Adjust / Prog: Precision
• Output Voltage (max): 2.048V
• Reference Voltage Accuracy (max): 2
• Line Regulation: 4ppm/V
• Load Regulation: 10ppm/mA
• Input Voltage (max): 18V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

V
OFF
OUT
ON
100%
10%
90%
0%
Figure 17. SLEEP Response Time Measurement Circuit
V
5V
1V
IN
= 15V
Figure 16. SLEEP Response Time
I
L
2
3
= 10mA
REF19x
4
6
1μF
I
L
= 1mA
V
OUT
2ms
Rev. K | Page 19 of 28
100%
10%
90%
0%
35
30
25
20
15
10
5
0
0
Figure 19. Load Current vs. REF195 Dropout Voltage
200mV
0.1
5V
Figure 18. Line Transient Response
0.2
REF195 DROPOUT VOLTAGE (V)
0.3
0.4
0.5
REF19x Series
0.6
200µs
0.7
0.8
0.9