ADR360AUJZ-REEL7 Analog Devices Inc, ADR360AUJZ-REEL7 Datasheet - Page 16

• Manufacturer Part Number: ADR360AUJZ-REEL7
• Description: IC VREF LP 2.048V 25PPM TSOT23-5
• Manufacturer: Analog Devices Inc

Specifications of ADR360AUJZ-REEL7

• Temperature Coefficient: 25ppm/°C
• Reference Type: Series
• Voltage - Output: 2.048V
• Tolerance: ±0.29%
• Voltage - Input: 2.35 ~ 15 V
• Number Of Channels: 1
• Current - Quiescent: 190µA
• Current - Output: 5mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Topology: Series
• Input Voltage: 2.45V To 15V
• Reference Voltage: 2.048V
• Reference Voltage Tolerance: 6mV
• Voltage Reference Case Style: SOT-23
• No. Of Pins: 5
• Operating: RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
THEORY OF OPERATION
Band gap references are the high performance solution for low
supply voltage and low power voltage reference applications,
and the ADR36x family is no exception. The uniqueness of
these products lies in their architecture. The ideal zero TC band
gap voltage is referenced to the output not to ground (see
Figure 32). Therefore, if noise exists on the ground line, it is
greatly attenuated on V
PNP pair Q51 and Q52 running at unequal current densities.
The difference in V
which is amplified by a ratio of
This PTAT voltage, combined with the V
produces the stable band gap voltage.
Reduction in the band gap curvature is performed by the ratio
of the resistors R44 and R59, one of which is linearly
temperature dependent. Precision laser trimming and other
patented circuit techniques are used to further enhance the drift
performance.
2 ×
SHDN
R58
R54
Figure 32. Simplified Schematic
BE
results in a voltage with a positive TC,
Q51
R59
R54
R60
OUT
Q1
. The band gap cell consists of the
R53
R44
R58
Q52
R61
R49
R48
BE
s of Q51 and Q52,
GND
V
V
V
IN
OUT (FORCE)
OUT (SENSE)
Rev. 0 | Page 16 of 20
Device Power Dissipation Considerations
The ADR36x family is capable of delivering load currents to
5 mA with an input voltage that ranges from 2.348 V (ADR360
only) to 18 V. When this device is used in applications with large
input voltages, care should be taken to avoid exceeding the
specified maximum power dissipation or junction temperature
because it could result in premature device failure. Use the
following formula to calculate a device’s maximum junction
temperature or dissipation:
In this equation, T
ambient temperatures, P
θ
JA
is the device package thermal resistance.
P =
D
T
J
θ
–T
JA
A
J
and T
D
A
is the device power dissipation, and
are, respectively, the junction and