LPV542 Datasheet, PDF (1/29 Pages) Texas Instruments – LPV542 Dual Nanopower 1.8 V, 490nA, RRIO CMOS Operational Amplifier

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LPV542
SNOSCX9A – MARCH 2015 – REVISED NOVEMBER 2015
LPV542 Dual Nanopower 1.8 V, 490nA, RRIO CMOS Operational Amplifier
1 Features
•1 Wide Supply Range: 1.6 V to 5.5 V
• Low Supply Current: 490 nA (typical/channel)
• Good Offset Voltage: 3 mV (maximum/room)
• Good TcVos: 1µV/°C (typical)
• Gain-Bandwidth: 8 kHz (typical)
• Rail-to-Rail Input and Output
• Unity-Gain Stable
• Low Input Bias Current : 1 pA (typ)
• EMI Hardened
• Temperature Range: -40°C to 125°C
• Thin 3 mm x 3 mm x 0.45 mm X1SON package
2 Applications
• Wearables
• Personal Health Monitors
• Battery Packs
• Mobile Phones and Tablets
• Solar-Powered or Energy Harvested Systems
• PIR, Smoke, Gas, and Fire Detection Systems
• Battery Powered Internet of Things (IoT) Devices
• Remote Sensors
• Micropower Reference Buffer
3 Description
The LPV542 is an ultra-low-power, dual operational
amplifier that provides 8kHz of bandwidth from 490nA
of quiescent current making it well suited for battery-
powered applications such as health and fitness
wearables, building automation, and remote sensing
nodes.
Each amplifier has a CMOS input stage with pico-
amp bias currents which reduces errors commonly
introduced in megaohm feedback resistance
topologies such as photodiode and charge sense
applications. In addition, the input common-mode
range extends to the power supply rails and the
output swings to within 3 mV of the rails, maintaining
the widest dynamic range possible. Likewise, EMI
protection is designed into the LPV542 in order to
reduce system sensitivity to unwanted RF signals
from mobile phones, WiFi, radio transmitters, and tag
readers.
The LPV542 operates on a supply voltage as low as
1.6 V, ensuring continuous superior performance in
low battery situations. The device is available in an 8-
pad, low-profile, leadless 3 mm x 3 mm x 0.45 mm
X1SON package and a standard 8 pin VSSOP.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LPV542
X1SON (8)
VSSOP (8)
3.00 mm x 3.00 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
space
Nanopower Oxygen Sensor Amplifier
100 M
+
V
1M
+
V_OUT
R_L
OXYGEN SENSOR
Supply Current vs. Supply Voltage
1000
900
V_CM = 0.3V
800
700
600
500
400
300
200
100
0
1.5 2 2.5 3 3.5 4 4.5
Supply Voltage (V)
125°C
85°C
25°C
0°C
-40°C
5 5.5
C001
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.