AD8631 Datasheet, PDF (1/12 Pages) Analog Devices – 1.8 V, 5 MHz Rail-to-Rail Low Power Operational Amplifiers

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1.8 V, 5 MHz Rail-to-Rail
Low Power Operational Amplifiers
AD8631/AD8632
FEATURES
Single Supply Operation: 1.8 V to 6 V
Space-Saving SOT-23, ␮SOIC Packaging
Wide Bandwidth: 5 MHz @ 5 V, 4 MHz @ 1.8 V
Low Offset Voltage: 4 mV Max, 0.8 mV typ
Rail-to-Rail Input and Output Swing
2 V/␮s Slew Rate @ 1.8 V
Only 225 ␮A Supply Current @ 1.8 V
APPLICATIONS
Portable Communications
Portable Phones
Sensor Interface
Active Filters
PCMCIA Cards
ASIC Input Drivers
Wearable Computers
Battery-Powered Devices
New Generation Phones
Personal Digital Assistants
GENERAL DESCRIPTION
The AD8631 brings precision and bandwidth to the SOT-23-5
package at single supply voltages as low as 1.8 V and low supply
current. The small package makes it possible to place the AD8631
next to sensors, reducing external noise pickup.
The AD8631 and AD8632 are rail-to-rail input and output bipolar
amplifiers with a gain bandwidth of 4 MHz and typical voltage
offset of 0.8 mV from a 1.8 V supply. The low supply current and
the low supply voltage makes these parts ideal for battery-powered
applications. The 3 V/µs slew rate makes the AD8631/AD8632 a
good match for driving ASIC inputs, such as voice codecs.
The AD8631/AD8632 is specified over the extended industrial
(–40؇C to +125؇C) temperature range. The AD8631 single is
available in 5-lead SOT-23 surface-mount packages. The dual
AD8632 is available in 8-lead SOIC and µSOIC packages.
PIN CONFIGURATIONS
5-Lead SOT-23
(RT Suffix)
AD8631
OUT A 1
5 V+
V– 2
+IN A 3
4 –IN A
8-Lead SOIC
(R Suffix)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8632
8 V+
7 _{OUT B}
6 –IN B
5 +IN B
8-Lead ␮SOIC
(RM Suffix)
OUT A
–IN A
+IN A
V–
1
8
AD8632
4
5
V+
OUT B
–IN B
+IN B
REV. 0
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© Analog Devices, Inc., 2000