REF191ESZ Analog Devices Inc, REF191ESZ Datasheet - Page 8

• 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

REF19x Series
ELECTRICAL CHARACTERISTICS—REF193 @ T
@ V
Table 8.
Parameter
INITIAL ACCURACY
LINE REGULATION
LOAD REGULATION
DROPOUT VOLTAGE
LONG-TERM STABILITY
NOISE VOLTAGE
1
2
3
ELECTRICAL CHARACTERISTICS—REF193 @ −40°C ≤ T
@ V
Table 9.
Parameter
TEMPERATURE COEFFICIENT
LINE REGULATION
LOAD REGULATION
DROPOUT VOLTAGE
SLEEP PIN
SUPPLY CURRENT
1
2
3
4
Initial accuracy does not include shift due to solder heat effect (see the Applications Information section).
Line and load regulation specifications include the effect of self-heating.
Long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
For proper operation, a 1 μF capacitor is required between the output pin and the GND pin of the device.
TCV
Guaranteed by characterization.
Line and load regulation specifications include the effect of self-heating.
G Grade
G Grade
G Grade
G Grade
G Grade
G Grade
Logic High Input Voltage
Logic High Input Current
Logic Low Input Voltage
Logic Low Input Current
Sleep Mode
S
S
O
TCV
= 3.3 V, T
= 3.3 V, T
is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/°C.
O
= (V
3
MAX
A
A
− V
= 25°C, unless otherwise noted.
= −40°C ≤ T
2
4
MIN
1
2
4
)/V
3
O
(T
MAX
1, 2
− T
A
≤ +85°C, unless otherwise noted.
MIN
)
Symbol
V
ΔV
ΔV
V
DV
e
Symbol
TCV
ΔV
ΔV
V
V
I
V
I
H
L
N
O
S
S
H
L
− V
O
O
− V
O
O
O
/ΔV
/ΔV
O
/ΔV
/ΔV
/°C
O
O
IN
LOAD
IN
LOAD
Condition
I
3.3 V, ≤ V
V
V
V
1000 hours @ 125°C
0.1 Hz to 10 Hz
Condition
I
3.3 V ≤ V
V
V
V
No load
No load
A
OUT
OUT
S
S
S
S
S
S
= 25°C
= 5.0 V, 0 mA ≤ I
= 3.8 V, I
= 4.0 V, I
= 5.0 V, 0 mA ≤ I
= 3.8 V, I
= 4.1 V, I
Rev. K | Page 8 of 28
= 0 mA
= 0 mA
S
S
≤ 15 V, I
≤ 15 V, I
LOAD
LOAD
LOAD
LOAD
A
≤ +85°C
= 10 mA
= 30 mA
= 10 mA
= 30 mA
OUT
OUT
OUT
OUT
= 0 mA
= 0 mA
≤ 30 mA
≤ 25 mA
Min
2.990
Min
2.4
Typ
3.0
4
6
1.2
30
Typ
10
10
10
Max
3.010
8
15
0.80
1.00
Max
25
20
20
0.80
1.10
−8
0.8
−8
45
15
Unit
V
ppm/V
ppm/mA
V
V
mV
μV p-p
Unit
ppm/°C
ppm/V
ppm/mA
V
V
V
μA
V
μA
μA
μA