AD8230YRZ Analog Devices Inc, AD8230YRZ Datasheet

IC AMP CHOPPER R-R PREC 8SOIC

AD8230YRZ

Manufacturer Part Number
AD8230YRZ
Description
IC AMP CHOPPER R-R PREC 8SOIC
Manufacturer
Analog Devices Inc
Type
Instrumentation Amplifierr
Datasheet

Specifications of AD8230YRZ

Amplifier Type
Chopper (Zero-Drift)
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
2 V/µs
Current - Input Bias
150pA
Voltage - Input Offset
20µV
Current - Supply
3.2mA
Current - Output / Channel
15mA
Voltage - Supply, Single/dual (±)
8 V ~ 16 V, ±4 V ~ 8 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
No. Of Amplifiers
1
Input Offset Voltage
10µV
Bandwidth
2kHz
Amplifier Output
Rail To Rail
Cmrr
120dB
Supply Voltage Range
8V To 16V, ± 4V To ± 18V
Supply Current
2.7mA
Rohs Compliant
Yes
Number Of Channels
1
Number Of Elements
1
Power Supply Requirement
Single/Dual
Voltage Gain Db
60dB
Single Supply Voltage (typ)
9/12/15V
Dual Supply Voltage (typ)
±5V
Power Dissipation
304mW
Rail/rail I/o Type
Rail to Rail Input/Output
Single Supply Voltage (min)
8V
Single Supply Voltage (max)
16V
Dual Supply Voltage (min)
±4V
Dual Supply Voltage (max)
±8V
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Gain Bandwidth Product
-
Lead Free Status / Rohs Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD8230YRZ
Manufacturer:
AD
Quantity:
4 934
Part Number:
AD8230YRZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
Resistor programmable gain range: 10
Supply voltage range: ±4 V to ±8 V
Rail-to-rail input and output
Maintains performance over −40°C to +125°C
Excellent ac and dc performance
APPLICATIONS
Pressure measurements
Temperature measurements
Strain measurements
Automotive diagnostics
GENERAL DESCRIPTION
The AD8230 is a low drift, differential sampling, precision
instrumentation amplifier. Auto-zeroing reduces offset voltage
drift to less than 50 nV/°C. The AD8230 is well-suited for
thermocouple and bridge transducer applications. The
AD8230’s high CMR of 110 dB (minimum) rejects line noise in
measurements where the sensor is far from the instrumentation.
The 16 V rail-to-rail, common-mode input range is useful for
noisy environments where ground potentials vary by several
volts. Low frequency noise is kept to a minimal 3 μV p-p,
making the AD8230 perfect for applications requiring the
utmost dc precision. Moreover, the AD8230 maintains its high
performance over the extended industrial temperature range of
−40°C to +125°C.
Two external resistors are used to program the gain. By using
matched external resistors, the gain stability of the AD8230 is
much higher than instrumentation amplifiers that use a single
resistor to set the gain. In addition to allowing users to program
the gain between 10
offset voltage.
Rev. B
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.
110 dB minimum CMR @ 60 Hz, G = 10 to 1000
10 μV maximum offset voltage (RTI, ±5 V operation)
50 nV/°C maximum offset drift
20 ppm maximum gain nonlinearity
1
and 1000, users can adjust the output
1
to 1000
Precision Instrumentation Amplifier
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The AD8230 is versatile yet simple to use. Its auto-zeroing
topology significantly minimizes the input and output
transients typical of commutating or chopper instrumentation
amplifiers. The AD8230 operates on ±4 V to ±8 V (+8 V to +16 V)
supplies and is available in an 8-lead SOIC.
1
The AD8230 can be programmed for a gain as low as 2, but the maximum
input voltage is limited to approximately 750 mV.
16 V Rail-to-Rail, Zero-Drift,
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–50
Figure 2. Relative Offset Voltage vs. Temperature
TYPE K THERMOCOUPLE
–30
Figure 3. Thermocouple Measurement
CONNECTION DIAGRAM
©2004–2007 Analog Devices, Inc. All rights reserved.
V
–10
REF
+V
–V
Figure 1. 8-Lead SOIC (R-8)
+IN
S
S
1
10
1
2
3
4
(Not to Scale)
TEMPERATURE (°C)
TOP VIEW
AD8230
0.1µF
30
4
5
AD8230
50
3
+5V
2
6
70
8
7
6
5
–5V
1
7
V
R
V
–IN
34.8kΩ
OUT
REF
284Ω
G
90
0.1µF
2
8
AD8230
www.analog.com
110
V
130
OUT
150

Related parts for AD8230YRZ

AD8230YRZ Summary of contents

Page 1

FEATURES Resistor programmable gain range: 10 Supply voltage range: ± ±8 V Rail-to-rail input and output Maintains performance over −40°C to +125°C Excellent ac and dc performance 110 dB minimum CMR @ 60 Hz ...

Page 2

AD8230 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Connection Diagram ....................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Characteristics .............................................................. 5 ESD Caution.................................................................................. 5 Typical Performance Characteristics ............................................. 6 Theory ...

Page 3

SPECIFICATIONS V = ± 100 kΩ kΩ REF F G Table 1. Parameter VOLTAGE OFFSET RTI Offset, V OSI Offset Drift COMMON-MODE REJECTION (CMR) CMR to 60 ...

Page 4

AD8230 V = ± 100 kΩ kΩ REF F G Table 2. Parameter VOLTAGE OFFSET RTI Offset, V OSI Offset Drift COMMON-MODE REJECTION (CMR) CMR to 60 ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Internal Power Dissipation Output Short-Circuit Current Input Voltage (Common-Mode) Differential Input Voltage Storage Temperature Range Operational Temperature Range Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the ...

Page 6

AD8230 TYPICAL PERFORMANCE CHARACTERISTICS TOTAL NUMBER OF SAMPLES = 2839 FROM 3 LOTS 500 400 300 200 100 0 –9 –6 –3 0 OFFSET VOLTAGE (µV RTI) Figure 4. Offset Voltage (RTI) Distribution at ± ...

Page 7

NORMALIZED FOR REF –10 –20 –30 –40 –1.5 –1.0 –0.5 0 0.5 V (V) REF Figure 10. Offset Voltage (RTI) vs. Reference Voltage 130 CMR WITH NO SOURCE IMBALANCE 120 110 100 ...

Page 8

AD8230 6.8 6.6 6.4 ±8V 6.2 6.0 ±5V 5.8 5.6 5.4 –50 –30 – TEMPERATURE (°C) Figure 16. Clock Frequency vs. Temperature 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 0°C –0.6 –0.8 +25°C –1.0 –6 –4 ...

Page 9

FREQUENCY (Hz) Figure 22. Gain vs. Frequency 100 –10 10 100 1k FREQUENCY (Hz) ...

Page 10

AD8230 140 120 G = +100 100 G = +1000 0.1 1 FREQUENCY (kHz) Figure 28. Negative PSR vs. Frequency, RTI +10 –2 –4 ...

Page 11

THEORY OF OPERATION Auto-zeroing is a dynamic offset and drift cancellation technique that reduces input-referred voltage offset to the μV level and voltage offset drift to the nV/°C level. A further advantage of dynamic offset cancellation is the reduction of ...

Page 12

AD8230 0 –1 –2 – 100kΩ –4 R –5 – TEMPERATURE (°C) Figure 33. Effect of Feedback Resistor on Offset Voltage Drift LEVEL-SHIFTING THE OUTPUT A reference voltage, as shown in Figure 34, can ...

Page 13

INPUT VOLTAGE RANGE The input common-mode range of the AD8230 is rail to rail. However, the differential input voltage range is limited to approximately 750 mV. The AD8230 does not phase invert when its inputs are overdriven. INPUT PROTECTION The ...

Page 14

AD8230 LAYOUT The AD8230 has two reference pins: V REF draws current to set the internal voltage references. In contrast does not draw current. It sets the common mode of the REF output signal. As such ...

Page 15

... OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY ORDERING GUIDE Model Temperature Range 1 AD8230YRZ −40°C to +125°C 1 AD8230YRZ-REEL −40°C to +125°C AD8230YRZ-REEL7 1 −40°C to +125°C AD8230-EVAL RoHS Compliant Part. 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3 ...

Page 16

AD8230 NOTES ©2004–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05063-0-9/07(B) Rev Page ...

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