AD8222: Precision, Dual-Channel Instrumentation Amplifier
The AD8222 is the first dual instrumentation amplifier in the small 4 mm × 4 mm LFCSP. It requires the same board area as a typical single instrumentation amplifier. The smaller package allows a ...More
AD8222: Precision, Dual-Channel Instrumentation Amplifier
Product Description
The AD8222 is the first dual instrumentation amplifier in the small 4 mm × 4 mm LFCSP. It requires the same board area as a typical single instrumentation amplifier. The smaller package allows a 2× increase in channel density and a lower cost per channel, all with no compromise in performance.
The AD8222 can also be configured as a single-channel, differential output instrumentation amplifier. Differential outputs provide high noise immunity, which can be useful when the output signal must travel through a noise environment, such as with remote sensors. The configuration can also be used to drive differential input ADCs.
The AD8222 maintains a minimum CMRR of 80 dB to 4 kHz for all grades at G = 1. High CMRR over frequency allows the AD8222 to reject wideband interference and line harmonics, greatly simplifying filter requirements. The AD8222 also has a typical CMRR drift over temperature of just 0.07 µV/V/°C at G = 1.
The AD8222 operates on both single and dual supplies and only requires 2.2 mA maximum supply current for both amplifiers. It is specified over the industrial temperature range of -40°C to +85°C and is fully RoHS compliant.
For a single-channel version, see the AD8221.
Features
- Two channels in small 4 mm × 4 mm LFCSP
- Gain set with 1 resistor per amplifier (G = 1 to 10,000)
- Low noise
8 nV/√Hz @ 1 kHz
0.25 µV p-p (0.1 Hz to 10 Hz) - Excellent ac performance
150 kHz bandwidth (G = 100)
13 µs settling time to 0.001%
- High accuracy dc performance (B grade)
60 µV maximum input offset voltage
0.3 µV/°C maximum input offset drift
1.0 nA maximum input bias current
126 dB minimum CMRR (G = 100) - Differential output option (single channel)
Fully specified
Adjustable common-mode output - Supply range: ±2.3 V to ±18 V
Diagrams
- Enlarge
- Symbols and Footprints
Functional Block Diagram for AD8222 for AD8222
Precision, Dual-Channel Instrumentation Amplifier
Functional Block Diagram for AD8222
AD5751 - Industrial I/V Output Driver, Single Supply, 60v Compliance, Programmable Ranges
AD8270 - Precision Dual-Channel, Difference Amplifier
AD8273 - Dual-Channel, Audio Difference Amplifier
AD8228 - Precision Instrumentation Amplifier Fixed G = 10, 100
| Part# | Description | Single/Dual Supply | Vcc-Vee | Gain Setting Method | Bandwidth G=10 (kHz typ) | Gain min. | Gain max. | Min CMRR @ 60 Hz Min Gain | Min CMRR @ 60Hz Max Gain | Vnoise RTI 1-10 Hz µVp-p | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AD522 | Diff Amp | Dual | 10V to 36V | Resistor | 3 | 1 | 1,000 | 75dB | 100dB | 4 | - |
| AD524 | Precision IA | Dual | 12V to 36V | Pin | 400 | 1 | 1,000 | 70dB | 110dB | 0.3 | $9.41 |
| AD526 | Software Programmable | Dual | 9V to 33V | Software | 350 | 1 | 16 | - | - | 3 | $6.31 |
| AD620 | General Purpose IA | Dual | 4.6V to 36V | Resistor | 800 | 1 | 10,000 | 73dB | 110dB | 0.28 | $3.14 |
| AD621 | Precision IA | Dual | 4.6V to 18V | Pin | 800 | 10 | 100 | 93dB | 110dB | 0.28 | $4.04 |
| AD622 | Low Cost IA | Dual | 5.2V to 36V | Resistor | 800 | 1 | 1,000 | 66dB | 103dB | 0.3 | $2.48 |
| AD623 | S.S R-R IA | Single/Dual | 2.7V to 12V | Resistor | 100 | 1 | 1,000 | 70dB | 105dB | 2 | $1.38 |
| AD624 | Precision IA | Dual | 12V to 36V | Pin | 400 | 1 | 1,000 | 70dB | 110dB | 0.3 | $11.79 |
| AD625 | Programmable Gain IA | Dual | 12V to 36V | Resistor | 400 | 1 | 10,000 | 70dB | 110dB | 0.3 | $8.68 |
| AD626 | Diff Amp | Single/Dual | 2.4V to 12V | Pin | 100 | 10 | 100 | 55dB | 55dB | 2 | $3.66 |
| AD627 | Micropower IA | Single/Dual | 2.2V to 36V | Resistor | 30 | 5 | 1,000 | 77dB | 77dB | 1.2 | $2.53 |
| AD628 | High CMV DA | Single/Dual | 4.5V to 36V | Pin, Resistor | 600 | 0.1 | 100 | 75dB | 75dB | 15 | $1.76 |
| AD629 | High CMV DA | Dual | 5V to 36V | fixed | 500 | - | - | 77dB | 77dB | 15 | $2.81 |
| AD8129 | Low Cost Diff Amp | Single/Dual | 4.5V to 25V | Resistor | 200000 | 10 | - | 94dB | - | - | $1.55 |
| AD8202 | High CMV DA | Single | 3.5V to 12V | fixed | 50 | - | - | 82dB | 82dB | 10 | $1.49 |
| AD8203 | High CMV DA | Single | 4.5V to 5.5V | fixed | 60 | - | - | 82dB | 82dB | 10 | $1.35 |
| AD8205 | S.S Diff Amp | Single | 4.5V to 5.5V | fixed | 50 | - | - | 78dB | 78dB | 20 | $1.49 |
| AD8206 | S.S Diff Amp | Single | 4.5V to 5.5V | fixed | 100 | - | - | 76dB | 76dB | 20 | $1.35 |
| AD8210 | Bi-Directional Shunt Mon | Single | 4.5V to 5.5V | fixed | 500 | 20 | 20 | 100dB | 100dB | 7 | $1.79 |
| AD8211 | High CMV Shunt Mon | Single | 4.5V to 5.5V | fixed | 500 | 20 | 20 | 100dB | 100dB | 7 | $0.80 |
| AD8212 | High CMV Shunt Mon | Single | 7V to 65V | Resistor | 1000 | 1 | 1,000 | 100dB | 100dB | 1.1 | $0.92 |
| AD8213 | Dual High CMV Shunt Mon | Single | 4.5V to 5.5V | fixed | 500 | 20 | 20 | 100dB | 100dB | 7 | $1.99 |
| AD8214 | High CMV Threshold Detec | Single | 5V to 65V | Resistor | - | 1 | 100 | 80dB | 80dB | 2.2 | $0.75 |
| AD8215 | High CMV Shunt Mon | Single | 4.5V to 5.5V | fixed | 450 | 20 | 20 | 100dB | 100dB | 7 | $1.20 |
| AD8216 | High BW 65 V Diff Amp | Single | 4.5V to 5.5V | fixed | 3000 | 3 | 3 | 80dB | 80dB | 20 | $1.60 |
| AD8220 | R-R JFET IA | Single/Dual | 4.6V to 36V | Resistor | 800 | 1 | 1,000 | 78dB | 94dB | 0.8 | $2.29 |
| AD8221 | High Performance IA | Dual | 4.6V to 36V | Resistor | 562 | 1 | 1,000 | 80dB | 130dB | 0.25 | $1.99 |
| AD8222 | Dual High Performance IA | Dual | - to - | Resistor | 750 | 1 | 10,000 | 80dB | 130dB | 0.25 | $3.59 |
| AD8223 | S.S R-R IA | Single/Dual | 3V to 25V | Resistor | 200 | 5 | 1,000 | 70dB | 105dB | 2 | - |
| AD8224 | Dual JFET R-R IA | Single/Dual | 4.6V to 36V | Resistor | 800 | 1 | 1,000 | 78dB | 94dB | 0.8 | $4.12 |
| AD8225 | Fixed G=5 IA | Dual | 3.4V to 36V | fixed | 900 | - | - | 86dB | 86dB | 1.5 | $3.25 |
| AD8228 | Precision IA | Dual | 4.6V to 36V | Pin | 560 | 10 | 100 | 100dB | 120dB | 8 | $2.99 |
| AD8230 | Zero Drift IA | Single/Dual | 8V to 16V | Resistor | 2 | 2 | 1,000 | - | 110dB | 3 | $2.95 |
| AD8231 | Zero Drift Software Prog | Single | 3V to 6V | Pin, Software | 700 | 1 | 128 | 80dB | 110dB | 0.7 | $1.69 |
| AD8250 | Software Programmable | Dual | 10V to 34V | Pin, Software | 3000 | 1 | 10 | 80dB | 98dB | 1 | $4.95 |
| AD8251 | Software Programmable | Dual | 10V to 34V | Pin, Software | 2500 | 1 | 8 | 80dB | 98dB | 1.2 | $4.95 |
| AD8253 | Software Programmable | Dual | 10V to 34V | Pin, Software | 8000 | 1 | 1,000 | 80dB | 120dB | 1 | - |
| AD8270 | Dual Diff Amp | Dual | 5V to 36V | Pin | 10000 | 0.5 | 2 | 70dB | 80dB | 1 | $1.89 |
| AD8273 | Dual Audio Diff Amp | Dual | 5V to 36V | Pin | 20000 | 0.5 | 2 | 77dB | - | 2 | $1.65 |
| AD8290 | Sensor Amp | - | 2.6V to 5.5V | fixed | - | 50 | 50 | - | - | 0.75 | $1.50 |
| AD8553 | Zero Drift IA | Single | 1.8V to 5.5V | Resistor | 1 | 0.1 | 10,000 | 80dB | 120dB | 0.7 | $1.30 |
| AD8555 | Sensor Amp | Single | 5.5V to 2.7V | Software | n/a | 70 | 1,280 | 80dB | 96dB | 0.5 | $3.08 |
| AD8556 | Sen/Filter Amp | Single | 2.7V to 5.5V | Software | n/a | 70 | 1,280 | 80dB | 94dB | 0.5 | $2.85 |
| AD8557 | Sensor Amp | Single | 2.7V to 5.5V | Software | - | 28 | 1,300 | 75dB | 86dB | - | $2.10 |
| AMP03 | Precision Diff Amp | Dual | 12V to 36V | fixed | 3000 | - | - | 85dB | 85dB | 2 | $2.78 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
AD8222 Model Options
| Model | Status | Package | Pins | Temp. Range |
Price* (1000 pcs.) |
Available | ROHS Compilant | Samples Cart | Purchase Cart |
|---|---|---|---|---|---|---|---|---|---|
| AD8222-EVALZ | Prodn | EVALUATION BOARDS | - | Ind | - | 09/19/2008 | Y | Contact ADI | Add To Cart |
| AD8222ACPZ-R7 | Prodn | 16 ld LFCSP (4x4mm, 2.50mm exposed pad) | 16 | Ind | $3.59 | 08/15/2008 |
Y
Material Declaration |
Add To Cart | Add To Cart |
| AD8222ACPZ-RL | Prodn | 16 ld LFCSP (4x4mm, 2.50mm exposed pad) | 16 | Ind | $3.59 | - |
Y
Material Declaration |
Contact ADI | Contact ADI |
| AD8222ACPZ-WP | Prodn | 16 ld LFCSP (4x4mm, 2.50mm exposed pad) | 16 | Ind | $3.59 | 07/25/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
| AD8222BCPZ-R7 | Prodn | 16 ld LFCSP (4x4mm, 2.50mm exposed pad) | 16 | Ind | $6.29 | 07/25/2008 |
Y
Material Declaration |
Add To Cart | Add To Cart |
| AD8222BCPZ-RL | Prodn | 16 ld LFCSP (4x4mm, 2.50mm exposed pad) | 16 | Ind | $6.29 | - |
Y
Material Declaration |
Contact ADI | Contact ADI |
| AD8222BCPZ-WP | Prodn | 16 ld LFCSP (4x4mm, 2.50mm exposed pad) | 16 | Ind | $6.29 | 07/25/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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