AD1580BRTZ Analog Devices Inc, AD1580BRTZ Datasheet

IC, V REF, 1.2V, 5MA, SOT23 3

AD1580BRTZ

Manufacturer Part Number
AD1580BRTZ
Description
IC, V REF, 1.2V, 5MA, SOT23 3
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD1580BRTZ

Topology
Shunt
Reference Voltage
1.2V
Reference Voltage Tolerance
1mV
Temperature Coefficient
50ppm/°C
Voltage Reference Case Style
SOT-23
No. Of Pins
3
Operating Temperature Range
-40°C To +85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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FEATURES
Wide operating range: 50 μA to 10 mA
Initial accuracy: ±0.1% maximum
Temperature drift: ±50 ppm/°C maximum
Output impedance: 0.5 Ω maximum
Wideband noise (10 Hz to 10 kHz): 20 μV rms
Operating temperature range: −40°C to +85°C
High ESD rating
Compact, surface-mount SOT-23 and SC70 packages
APPLICATIONS
Portable, battery-powered equipment
Computer workstations
Smart industrial transmitters
PCMCIA cards
Automotive
3 V/5 V, 8-bit to 12-bit data converters
GENERAL DESCRIPTION
The AD1580
gap reference. It provides an accurate 1.225 V output for input
currents between 50 μA and 10 mA.
The superior accuracy and stability of the AD1580 is made
possible by the precise matching and thermal tracking of
on-chip components. Proprietary curvature correction
design techniques have been used to minimize the nonli-
nearities in the voltage output temperature characteristics.
The AD1580 is stable with any value of capacitive load.
The low minimum operating current makes the AD1580
ideal for use in battery-powered 3 V or 5 V systems. However,
the wide operating current range means that the AD1580 is
extremely versatile and suitable for use in a wide variety of
high current applications.
The AD1580 is available in two grades, A and B, both of which
are provided in the SOT-23 and SC70 packages, the smallest
surface-mount packages available. Both grades are specified
over the industrial temperature range of −40°C to +85°C.
1
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or 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.
Trademarks and registered trademarks are the property of their respective owners.
Protected by U.S. Patent No. 5,969,657; other patents pending.
4 kV human body model
400 V machine model
Cellular phones, notebook computers, PDAs, GPSs,
and DMMs
Suitable for use with a wide range of video RAMDACs
1
is a low cost, 2-terminal (shunt), precision band
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
V+
V–
1
2
NC = NO CONNECT
1.2 V Micropower, Precision
300
250
200
150
100
AD1580
TOP VIEW
50
45
40
35
30
25
20
15
10
50
5
0
–40
0
Figure 1. SOT-23
Figure 3. Reverse Voltage Temperature Drift Distribution
–10
Shunt Voltage Reference
–8
–30
Figure 4. Reverse Voltage Error Distribution
3
PIN CONFIGURATIONS
–6
NC (OR V–)
–20
TEMPERATURE DRIFT (ppm/°C)
–4
©2008 Analog Devices, Inc. All rights reserved.
OUTPUT ERROR (mV)
–10
–2
0
0
V–
V+
1
2
NC = NO CONNECT
2
10
AD1580
TOP VIEW
4
Figure 2. SC70
20
AD1580
www.analog.com
6
30
3
8
NC (OR V–)
40
10

Related parts for AD1580BRTZ

AD1580BRTZ Summary of contents

Page 1

FEATURES Wide operating range: 50 μ Initial accuracy: ±0.1% maximum Temperature drift: ±50 ppm/°C maximum Output impedance: 0.5 Ω maximum Wideband noise ( kHz): 20 μV rms Operating temperature range: −40°C to +85°C High ...

Page 2

AD1580 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Typical Performance Characteristics ............................................. 5 Theory ...

Page 3

SPECIFICATIONS T = 25° 100 μA, unless otherwise noted Table 1. Model REVERSE VOLTAGE OUTPUT (SOT-23) REVERSE VOLTAGE OUTPUT (SC70) REVERSE VOLTAGE TEMPERATURE DRIFT −40°C to +85°C MINIMUM OPERATING CURRENT MIN REVERSE VOLTAGE ...

Page 4

AD1580 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Reverse Current Forward Current 1 Internal Power Dissipation SOT-23 (RT) Storage Temperature Range Operating Temperature Range AD1580/RT Lead Temperature, Soldering Vapor Phase (60 sec) Infrared (15 sec) 2 ESD Susceptibility Human Body Model ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS 1000 500 0 –500 –1000 –1500 –2000 –55 –35 – TEMPERATURE (°C) Figure 5. Output Drift for Different Temperature Characteristics –1 0.01 0.1 REVERSE CURRENT (mA) Figure 6. Reverse ...

Page 6

AD1580 THEORY OF OPERATION The AD1580 uses the band gap concept to produce a stable, low temperature coefficient voltage reference suitable for high accuracy data acquisition components and systems. The device makes use of the underlying physical nature of a ...

Page 7

V MAX O SLOPE = TC = 1.2256 (+85°C – +25°C) × 1.225 × 10 1.2254 1.2252 1.2250 V O 1.2248 1.2246 1.2244 1.2242 SLOPE = TC = (–40°C – +25°C) × 1.225 × 10 1.2240 V ...

Page 8

AD1580 NOISE PERFORMANCE AND REDUCTION The noise generated by the AD1580 is typically less than 5 μV p-p over the 0 band. Figure 17 shows the 0 noise of a typical AD1580. ...

Page 9

TRANSIENT RESPONSE Many ADC and DAC converters present transient current loads to the reference. Poor reference response can degrade the converter’s performance. Figure 22 displays both the coarse and fine settling characteristics of the device to load transients of ±50 ...

Page 10

AD1580 The AD1580 is ideal for creating the reference level to use with 12-bit multiplying DACs, such as the AD7943, AD7945, and AD7948. In the single-supply bias mode (see Figure 26), the impedance seen looking into the I terminal changes ...

Page 11

OUTLINE DIMENSIONS 3.04 2.90 2.80 1.40 1.30 1.20 3 2.64 2. PIN 1 0.95 BSC 1.90 BSC 1.12 0.89 0.10 0.01 0.60 0.50 0.50 0.40 0.30 SEATING PLANE COMPLIANT TO JEDEC STANDARDS TO-236-AB Figure 27. 3-Lead Small Outline ...

Page 12

... AD1580ARTZ-REEL7 −40°C to +85°C AD1580BRT-R2 −40°C to +85°C AD1580BRT-REEL7 −40°C to +85°C 1 AD1580BRTZ-R2 −40°C to +85°C 1 AD1580BRTZ-REEL7 −40°C to +85°C AD1580BKSZ-REEL 1 −40°C to +85°C 1 AD1580BKSZ-REEL7 −40°C to +85° RoHS Compliant Part. PACKAGE BRANDING INFORMATION In the SOT-23 package (RT), four marking fields identify the device generic, grade, and date of processing ...

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