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PDF ADR3512 Data sheet ( Hoja de datos )
| Número de pieza | ADR3512 | |
| Descripción | High Accuracy Voltage Reference | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
FEATURES
Maximum temperature coefficient
4 ppm/°C (C grade, −40°C to +85°C)
Low long-term drift (LTD): 30 ppm (initial 1 khr typical)
Initial output voltage error: ±0.1% (maximum)
Operating temperature range: −40°C to +125°C
Output current: +10 mA source/−3 mA sink
Low quiescent current: 100 µA (maximum)
Low dropout voltage: 1.15 V at 2 mA
Output voltage noise (0.1 Hz to 10 Hz): 8 µV p-p (typical)
Qualified for automotive applications
APPLICATIONS
Automotive battery monitors
Portable instrumentation
Process transmitters
Remote sensors
Medical instrumentation
GENERAL DESCRIPTION
The ADR3512 is a low cost, low power, high precision CMOS
voltage reference, featuring a maximum temperature coefficient
(TC) of 4 ppm/°C (C grade, −40°C to +85°C), low operating
current, and low output noise in an 8-lead MSOP package. For
high accuracy, the output voltage and temperature coefficient
are trimmed digitally during final assembly using the Analog
Devices, Inc., patented DigiTrim® technology.1
Micropower, High Accuracy
Voltage Reference
ADR3512
PIN CONFIGURATION
ENABLE 1
GND SENSE 2
GND FORCE 3
DNC 4
ADR3512
TOP VIEW
(Not to Scale)
8 VIN
7 VOUT SENSE
6 VOUT FORCE
5 DNC
NOTES
1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 1. 8-Lead MSOP (RM-8 Suffix)
The low output voltage hysteresis and low long-term output voltage
drift improve lifetime system accuracy.
This CMOS reference is specified over the automotive temperature
range of −40°C to +125°C.
Table 1. Selection Guide
Output
Model
Voltage (V)
Input Voltage
Range (V)
ADR3512WCRMZ-R7 1.200
2.3 to 5.5
1 At least U.S. Patent No. 6,696,894 covers this technology.
Rev. E
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
ADR3512
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
Supply Voltage
ENABLE to GND SENSE Voltage
Operating Temperature Range
Storage Temperature Range
Junction Temperature Range
Rating
6V
VIN
−40°C to +125°C
−65°C to +150°C
−65°C to +150°C
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Data Sheet
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 4. Thermal Resistance
Package Type
8-Lead MSOP (RM-8 Suffix)
θJA
132.5
θJC
43.9
Unit
°C/W
ESD CAUTION
Rev. E | Page 4 of 16
5 Page 
ADR3512
ENABLE
2V/DIV
1
CIN = CL = 0.1µF
VIN = 5V
RL = 1kΩ
2 VOUT = 2V/DIV
TIME = 200µs/DIV
Figure 27. ADR3550 Shutdown Response
VIN = 100mV/DIV
CIN = CL = 0.1µF
1
5.5V
5.2V
2
VOUT = 5mV/DIV
TIME = 1ms/DIV
Figure 28. ADR3550 Line Transient Response
IL
SINKING
SOURCING
CIN = 0.1µF
CL = 0.1µF
RL = 500Ω
SINKING
VOUT = 20mV/DIV
TIME = 1ms/DIV
+10mA
–3mA
5.0V
Figure 29. ADR3550 Load Transient Response
Data Sheet
100
VIN = 5.5 V
90
80
70
60
50
40
30
20
10
0
–40 –25 –10
5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 30. Supply Current vs. Temperature
2.0
–40°C
1.8 +25°C
+125°C
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 10 20 30 40 50 60 70 80 90
ENABLE VOLTAGE (% of V IN)
Figure 31. Supply Current vs. ENABLE Pin Voltage
100
10
CL = 0.1µF
CL = 1.1µF
1
0.1
0.01
0.01
0.1
1 10 100 1k 10k
FREQUENCY (Hz)
Figure 32. ADR3550 Output Impedance vs. Frequency
Rev. E | Page 10 of 16
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet ADR3512.PDF ] | |
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