AD8638ARZ

ActiveInstrumentation, OP Amps, Buffer Amps8-Lead SOIC_N

IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC

The AD8638ARZ is a single-channel auto-zero precision operational amplifier with a 5V to 16V supply voltage, featuring rail-to-rail output, low offset voltage (3 μV typical), and low noise. It is available in an 8-lead SOIC_N package with an operating temperature range of -40°C to +125°C.Checked against the datasheet

See alternatives Ask AI FAEDatasheet PDF

All alternatives

View full report

Technical parameters

Key specs

Supply voltage5 ~ 16 V

Gain bandwidth product1.35 MHzTyp · Typ 1.35 MHz (RL = 2 kΩ，CL = 20 pF，AV = 1)

Input offset voltage3 µVTyp · Max 9 μV (TA = 25°C)，Max 23 μV (-40°C ≤ TA ≤ +125°C)

Quiescent current1 mATyp · Max 1.3 mA (IO = 0 mA，TA = 25°C)，Max 1.5 mA (-40°C ≤ TA ≤ +125°C)

Channels1

Datasheet-verified parameters

23 items

Parameter	Value and test conditions	Source
Supply Voltage Range	5 V to 16 V single supply (±2.5 V to ±8 V dual supply)
Gain Bandwidth Product	Typ 1.35 MHz (RL = 2 kΩ, CL = 20 pF, AV = 1)
Offset Voltage	Typ 3 μV, Max 9 μV (TA = 25°C); Max 23 μV (-40°C ≤ TA ≤ +125°C)
Supply Current per Amplifier	Typ 1.0 mA, Max 1.3 mA (IO = 0 mA, TA = 25°C); Max 1.5 mA (-40°C ≤ TA ≤ +125°C)
Channels	Single
Package	8-Lead SOIC_N (R-8)
Operating Temperature Range	-40°C to +125°C
Grade	Industrial (Extended)
RoHS Compliant	Yes (Z = RoHS Compliant Part)
Input Bias Current	Typ 1.5 pA, Max 40 pA (TA = 25°C); Max 105 pA (-40°C ≤ TA ≤ +125°C)
Common-Mode Rejection Ratio	Min 118 dB, Typ 133 dB (VCM = 0 V to 3 V, TA = 25°C)
Power Supply Rejection Ratio	Min 127 dB, Typ 143 dB (VSY = 4.5 V to 16 V, TA = 25°C)
Large Signal Voltage Gain	Min 120 dB, Typ 136 dB (RL = 10 kΩ, VO = 0.5 V to 4.5 V, TA = 25°C)
Offset Voltage Drift	Typ 0.01 μV/°C, Max 0.06 μV/°C (-40°C ≤ TA ≤ +125°C, All Packages Except SOT-23)
Input Voltage Range	Min -0.1 V, Max +3.0 V (-40°C ≤ TA ≤ +125°C)
Output Voltage High	Min 4.97 V, Typ 4.985 V (RL = 10 kΩ to VCM, TA = 25°C)
Output Voltage Low	Typ 7.5 mV, Max 10 mV (RL = 10 kΩ to VCM, TA = 25°C)
Slew Rate	Typ 2.5 V/μs (RL = 10 kΩ, CL = 20 pF, AV = 1)
Voltage Noise	Typ 1.2 μV p-p (0.1 Hz to 10 Hz)
Voltage Noise Density	Typ 60 nV/√Hz (f = 1 kHz)
Absolute Maximum Rating - Supply Voltage	16 V
Absolute Maximum Rating - Input Voltage	GND - 0.3 V to VSY+ + 0.3 V
Storage Temperature Range	-65°C to +150°C

All parameters (20)ExpandCollapse

Power
Current - Input Bias	1 pA
Current - Output / Channel	37 mA
Current - Supply	1.25mA
Voltage - Supply Span (Max)	16 V
Voltage - Supply Span (Min)	5 V
AC and DC characteristics
Gain Bandwidth Product	1.5 MHz
Slew Rate	2V/µs
Voltage - Input Offset	3 µV
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Package	Tube
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Other
Amplifier Type	Zero-Drift
Base Product Number	AD8638
Mfr	Analog Devices Inc.
Number of Circuits	1
Output Type	Rail-to-Rail
Product Status	Active
Series	-

Pinout and package

Figure 2. 8-Lead SOIC\_N (R-8) — Package: **8-Lead SOIC_N (R-8)**

Pin	Name	Function
1	NC	(No Connect)
2		-IN (Inverting Input)
3		+IN (Non-Inverting Input)
4	V-	(Negative Supply)
5	NC	(No Connect)
6	OUT	(Output)
7	V+	(Positive Supply)
8	NC	(No Connect)

Documents

DatasheetDatasheet · 622.9 KB · 2026-10-27

Open document center

Datasheet-verified content is extracted by AI from the manufacturer datasheet. Click a page number to view the original.