AD8221ARMZ Analog Devices Inc, AD8221ARMZ Datasheet

AD8221ARMZ

Manufacturer Part Number

AD8221ARMZ

Description

IC AMP INST PREC LN 18MA 8MSOP

Manufacturer

Analog Devices Inc

Type

Instrumentation Ampr

Datasheets

1.AD8221-EVAL.pdf (24 pages)

2.AD8221ARMZ.pdf (24 pages)

3.AD8221ARMZ.pdf (9 pages)

Specifications of AD8221ARMZ

Design Resources

Low Cost, High Voltage, Programmable Gain Instrumentation Amplifier Using AD5292 and AD8221 (CN0114) Low Cost Programmable Gain Instrumentation Amplifier Circuit Using ADG1611 and AD620 (CN0146)

Amplifier Type

Instrumentation

Number Of Circuits

Slew Rate

2 V/µs

-3db Bandwidth

825kHz

Current - Input Bias

500pA

Voltage - Input Offset

60µV

Current - Supply

900µA

Current - Output / Channel

18mA

Voltage - Supply, Single/dual (±)

4.6 V ~ 36 V, ±2.3 V ~ 18 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

8-MSOP, Micro8™, 8-uMAX, 8-uSOP,

Number Of Channels

Number Of Elements

Power Supply Requirement

Dual

Common Mode Rejection Ratio

130dB

Voltage Gain Db

60dB

Input Resistance

100000@±15VMohm

Input Offset Voltage

0.07@±15VmV

Input Bias Current

0.002@±15VnA

Single Supply Voltage (typ)

Not RequiredV

Power Supply Rejection Ratio

120dB

Power Dissipation

200mW

Rail/rail I/o Type

Single Supply Voltage (min)

Not RequiredV

Single Supply Voltage (max)

Not RequiredV

Dual Supply Voltage (min)

±2.3V

Dual Supply Voltage (max)

±18V

Operating Temp Range

-40C to 125C

Operating Temperature Classification

Automotive

Mounting

Surface Mount

Pin Count

Package Type

MSOP

Bandwidth

825 kHz

Current, Input Bias

0.5 nA

Current, Input Offset

0.3 nA

Current, Supply

0.9 mA

Impedance, Thermal

135 °C/W

Resistance, Input

100 Gigaohms (Differential), 100 Gigaohms (Common-Mode)

Temperature, Operating, Range

-40 to +125 °C

Voltage, Gain

1000 V/V

Voltage, Input

-3.1 to +3.9 V

Voltage, Input Offset

70 μV

Voltage, Noise

8 nV/sqrt Hz (Input), 75 nV/sqrt Hz (Output)

Voltage, Output Swing

-16.8 to +16.4 V

Voltage, Supply

±2.3 to ±18 V

No. Of Amplifiers

Gain Db Min

1dB

Amplifier Output

Single Ended

Cmrr

130dB

Supply Voltage Range

Â± 2.3V To Â± 18V

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Output Type

Gain Bandwidth Product

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD8221ARMZ

Manufacturer:

Analog Devices Inc

Quantity:

25 875

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD8221ARMZ

Manufacturer:

ADI

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Company:

Meier Automation Equipment Co., Limited

Part Number:

AD8221ARMZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD8221ARMZ-R7

Manufacturer:

OMRON

Quantity:

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Company:

Meier Automation Equipment Co., Limited

Part Number:

AD8221ARMZ-R7

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Current page: 1 of 9
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FEATURES

Easy to use

Available in space-saving MSOP

Gain set with 1 external resistor (gain range 1 to 1000)

Wide power supply range: ±2.3 V to ±18 V

Temperature range for specified performance:

Operational up to 125°C

Excellent AC specifications

Low noise

High accuracy dc performance (AD8221BR)

APPLICATIONS

Weigh scales

Industrial process controls

Bridge amplifiers

Precision data acquisition systems

Medical instrumentation

Strain gages

Transducer interfaces

GENERAL DESCRIPTION

The AD8221 is a gain programmable, high performance

instrumentation amplifier that delivers the industry’s highest

CMRR over frequency in its class. The CMRR of instrumentation

amplifiers on the market today falls off at 200 Hz. In contrast,

the AD8221 maintains a minimum CMRR of 80 dB to 10 kHz

for all grades at G = 1. High CMRR over frequency allows the

AD8221 to reject wideband interference and line harmonics,

greatly simplifying filter requirements. Possible applications

include precision data acquisition, biomedical analysis, and

aerospace instrumentation.

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.

−40°C to +85°C

80 dB minimum CMRR to 10 kHz ( G = 1)

825 kHz, –3 dB bandwidth (G = 1)

2 V/μs slew rate

8 nV/√Hz, @ 1 kHz, maximum input voltage noise

0.25 μV p-p input noise (0.1 Hz to 10 Hz)

90 dB minimum CMRR (G = 1)

25 μV maximum input offset voltage

0.3 μV/°C maximum input offset drift

0.4 nA maximum input bias current

Precision Instrumentation Amplifier

Low voltage offset, low offset drift, low gain drift, high gain

accuracy, and high CMRR make this part an excellent choice

in applications that demand the best dc performance possible,

such as bridge signal conditioning.

Programmable gain affords the user design flexibility. A single

resistor sets the gain from 1 to 1000. The AD8221 operates on

both single and dual supplies and is well suited for applications

where ±10 V input voltages are encountered.

The AD8221 is available in a low cost 8-lead SOIC and 8-lead

MSOP, both of which offer the industry’s best performance. The

MSOP requires half the board space of the SOIC, making it ideal

for multichannel or space-constrained applications.

Performance is specified over the entire industrial temperature

range of −40°C to +85°C for all grades. Furthermore, the AD8221

is operational from −40°C to +125°C

See Typical Performance Characteristics for expected operation from

85°C to 125°C.

120

110

100

Figure 2. Typical CMRR vs. Frequency for G = 1

CONNECTION DIAGRAM

100

+IN

–IN

FREQUENCY (Hz)

TOP VIEW

AD8221

Figure 1.

COMPETITOR 1

COMPETITOR 2

AD8221

REF

–V

OUT

10k

AD8221

100k

Related parts for AD8221ARMZ

AD8221ARMZ Summary of contents

Page 1

FEATURES Easy to use Available in space-saving MSOP Gain set with 1 external resistor (gain range 1 to 1000) Wide power supply range: ±2 ±18 V Temperature range for specified performance: −40°C to +85°C 1 Operational up to ...

Page 2

SPECIFICATIONS V = ± 25° REF A Table 1. Parameter Conditions COMMON-MODE REJECTION RATIO CMRR with 1 kΩ Source Imbalance G = ...

Page 3

AD8221 Parameter Conditions POWER SUPPLY Operating Range V S Quiescent Current Over Temperature T = −40°C to +85°C DYNAMIC RESPONSE Small Signal −3 dB Bandwidth 100 G = 1000 Settling Time 0.01% ...

Page 4

Parameter Conditions TEMPERATURE RANGE Specified Performance 4 Operating Range 1 Total RTI /G). OS OSI OSO 2 Does not include the effects of external resistor R 3 One input grounded ...

Page 5

AD8221 Parameter REFERENCE INPUT Voltage Range Gain to Output POWER SUPPLY Operating Range Quiescent Current Over Temperature DYNAMIC RESPONSE Small Signal –3 dB Bandwidth 100 G = 1000 ...

Page 6

Parameter TEMPERATURE RANGE Specified Performance 4 Operating Range 1 Total RTI /G). OS OSI OSO 2 Does not include the effects of external resistor R 3 One input grounded See ...

Page 7

AD8221 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 1 Operating Temperature Range 1 Temperature range for specified performance is –40°C to +85°C. See Typical ...

Page 8

OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 0.15 0.38 0.23 0.00 0.22 0.08 COPLANARITY SEATING 0.10 PLANE COMPLIANT ...

Page 9

... AD8221ARM REEL7 –40°C to +85°C 2 AD8221ARMZ –40°C to +85°C 2 AD8221ARMZ-R7 –40°C to +85°C 2 AD8221ARMZ-RL –40°C to +85°C AD8221BR –40°C to +85°C AD8221BR-REEL –40°C to +85°C AD8221BR-REEL7 –40°C to +85°C AD8221-EVAL 1 See Typical Performance Characteristics for expected operation from 85° ...

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