AD620BRZ Analog Devices Inc, AD620BRZ Datasheet - Page 18

• Manufacturer Part Number: AD620BRZ
• Description: IC AMP INST LP LN 18MA 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Instrumentation Ampr

Specifications of AD620BRZ

• Design Resources: Low Cost Programmable Gain Instrumentation Amplifier Circuit Using ADG1611 and AD620 (CN0146)
• Amplifier Type: Instrumentation
• Number Of Circuits: 1
• Slew Rate: 1.2 V/µs
• -3db Bandwidth: 1MHz
• Current - Input Bias: 500pA
• Voltage - Input Offset: 15µV
• 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: 80dB
• Input Resistance: 10000@±15VMohm
• Input Offset Voltage: 0.05@±15VmV
• Input Bias Current: 0.001@±15VnA
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 15V
• Power Dissipation: 650mW
• 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 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Bandwidth: 12 kHz
• Current, Input Bias: 0.5 nA
• Current, Input Offset: 0.3 nA
• Current, Supply: 1.3 mA
• Impedance, Thermal: 155 °C/W
• Temperature, Operating, Range: -40 to +85 °C
• Voltage, Gain: 1-10000 V/V
• Voltage, Input: -13.1 to +13.8 V
• Voltage, Input Offset: 15 μV
• Voltage, Noise: 9 nV/sqrt Hz (Input), 72 nV/sqrt Hz (Output)
• Voltage, Output Swing: -13.9 to +13.8 V
• Voltage, Supply: ±2.3 to ±18 V
• No. Of Amplifiers: 1
• Gain Db Min: 1dB
• Amplifier Output: Single Ended
• Cmrr: 130dB
• Supply Voltage Range: ± 2.3V To ± 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

AD620
GROUND RETURNS FOR INPUT BIAS CURRENTS
Input bias currents are those currents necessary to bias the
input transistors of an amplifier. There must be a direct return
path for these currents. Therefore, when amplifying “floating”
input sources, such as transformers or ac-coupled sources, there
must be a dc path from each input to ground, as shown in
Figure 47, Figure 48, and Figure 49. Refer to A Designer’s Guide
to Instrumentation Amplifiers (free from Analog Devices) for
more information regarding in-amp applications.
Figure 47. Ground Returns for Bias Currents with Transformer-Coupled Inputs
+ INPUT
– INPUT
R
G
AD620
–V
+V
S
S
REFERENCE
LOAD
TO POWER
GROUND
SUPPLY
V
OUT
Rev. G | Page 18 of 20
Figure 48. Ground Returns for Bias Currents with Thermocouple Inputs
Figure 49. Ground Returns for Bias Currents with AC-Coupled Inputs
100k Ω
+ INPUT
– INPUT
100k Ω
– INPUT
+ INPUT
R
G
R
G
AD620
AD620
+V
–V
S
–V
S
+V
S
S
REFERENCE
REFERENCE
LOAD
TO POWER
LOAD
GROUND
TO POWER
SUPPLY
GROUND
SUPPLY
V
OUT
V
OUT