AD8221BR Analog Devices Inc, AD8221BR Datasheet - Page 11

• Manufacturer Part Number: AD8221BR
• Description: IC AMP INST PREC LN 18MA 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Instrumentation Ampr

Specifications of AD8221BR

• Rohs Status: RoHS non-compliant
• 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: 1
• Slew Rate: 2 V/µs
• -3db Bandwidth: 825kHz
• Current - Input Bias: 200pA
• Voltage - Input Offset: 25µV
• 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-SOIC (3.9mm Width)
• Number Of Channels: 1
• Number Of Elements: 1
• Power Supply Requirement: Dual
• Common Mode Rejection Ratio: 140dB
• Voltage Gain Db: 60dB
• Input Resistance: 100000@±15VMohm
• Input Offset Voltage: 0.025@±15VmV
• Input Bias Current: 0.0004@±15VnA
• Single Supply Voltage (typ): Not RequiredV
• Power Supply Rejection Ratio: 140dB
• Power Dissipation: 200mW
• Rail/rail I/o Type: No
• 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: 8
• Package Type: SOIC N
• No. Of Amplifiers: 1
• Gain Db Min: 1dB
• Bandwidth: 825kHz
• Amplifier Output: Single Ended
• Cmrr: 140dB
• Supply Voltage Range: ± 2.3V To ± 18V
• Rohs Compliant: No
• Output Type: -
• Gain Bandwidth Product: -
• Lead Free Status / RoHS Status: Not Compliant

Figure 12. Input Bias Current and Offset Current vs. Temperature
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
Figure 11. Change in Input Offset Voltage vs. Warm-Up Time
–1
–2
–3
–4
–5
0
5
4
3
2
1
0
0.01
–40
–15
INPUT OFFSET CURRENT
VS = ±15V
–20
–10
0
COMMON-MODE VOLTAGE (V)
Figure 10. I
0.1
20
–5
WARM-UP TIME (min)
TEMPERATURE (°C)
V
INPUT BIAS CURRENT
S
V
= ±5V
S
40
= ±15V
BIAS
0
vs. CMV
60
80
1
5
100
10
120
140
10
15
Rev. C | Page 11 of 24
180
160
140
120
100
100k
80
60
40
20
180
160
140
120
100
10k
100
80
60
40
20
1k
10
0.1
Figure 14. Negative PSRR vs. Frequency, RTI (G = 1 to 1000)
0.1
Figure 13. Positive PSRR vs. Frequency, RTI (G = 1 to 1000)
10
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
INPUT IN-AMP GAIN = 1
BEST AVAILABLE FET
1
Figure 15. Total Drift vs. Source Resistance
1
100
10
10
SOURCE RESISTANCE (Ω)
1k
FREQUENCY (Hz)
INPUT IN-AMP GAIN = 1000
FREQUENCY (Hz)
BEST AVAILABLE FET
100
100
AD8221 GAIN = 1
10k
1k
1k
100k
AD8221 GAIN = 1000
10k
10k
GAIN = 1000
100k
1M
100k
AD8221
1M
10M
1M