AD8221 Datasheet

Part No.	In Stock	Price	Packaging	SPQ	Marking	MSL	Pins	Temp Range	Package Description
AD8221ARMZ	8348pcs	-	Tube	50	JLA	1	8	-40°C ~ 85°C	8-Lead MSOP
AD8221ARMZ-R7	18820pcs	-	Reel	1000	JLA	1	8	-40°C ~ 85°C	8-Lead MSOP
AD8221ARMZ-RL	5763pcs	-	Reel	3000	JLA	1	8	-40°C ~ 85°C	8-Lead MSOP
AD8221ARZ	998pcs	-	Tube	98	AD8221ARZ	1	8	-40°C ~ 85°C	8-Lead SOIC
AD8221ARZ-R7	12260pcs	-	Reel	1000	AD8221ARZ	1	8	-40°C ~ 85°C	8-Lead SOIC
AD8221ARZ-RL	2484pcs	-	Reel	2500	AD8221ARZ	1	8	-40°C ~ 85°C	8-Lead SOIC
AD8221BRZ	8561pcs	-	Tube	98	AD8221BRZ	1	8	-40°C ~ 85°C	8-Lead SOIC
AD8221BRZ-R7	1681pcs	-	Reel	1000	AD8221BRZ	1	8	-40°C ~ 85°C	8-Lead SOIC
AD8221BRZ-RL	0	-	Reel	2500	AD8221BRZ	1	8	-40°C ~ 85°C	8-Lead SOIC

• 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: −40°C to +85°C
• Operational up to 125°C
• Excellent AC specifications
  • 80 dB minimum CMRR to 10 kHz (G = 1)
  • 825 kHz, –3 dB bandwidth (G = 1)
  • 2 V/µs slew rate
• See data sheet for additional features
• Available As Known Good Die and fully guaranteed to data sheet specifications

• Weigh scales
• Industrial process controls
• Bridge amplifiers
• Precision data acquisition systems
• Medical instrumentation
• Strain gages
• Transducer interfaces

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.

 

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*.