LPV521_16 Datasheet, PDF (1/34 Pages) Texas Instruments – NanoPower, 1.8-V, RRIO, CMOS Input, Operational Amplifier

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LPV521
SNOSB14D – AUGUST 2009 – REVISED DECEMBER 2014
LPV521 NanoPower, 1.8-V, RRIO, CMOS Input, Operational Amplifier
1 Features
•1 For V_S = 5 V, Typical Unless Otherwise Noted
– Supply Current at V_CM = 0.3 V 400 nA (Max)
– Operating Voltage Range 1.6 V to 5.5 V
– Low TCV_OS 3.5 µV/°C (Max)
– V_OS 1 mV (Max)
– Input Bias Current 40 fA
– PSRR 109 dB
– CMRR 102 dB
– Open-Loop Gain 132 dB
– Gain Bandwidth Product 6.2 kHz
– Slew Rate 2.4 V/ms
– Input Voltage Noise at f = 100 Hz 255 nV/√Hz
– Temperature Range −40°C to 125°C
2 Applications
• Wireless Remote Sensors
• Powerline Monitoring
• Power Meters
• Battery Powered Industrial Sensors
• Micropower Oxygen sensor and Gas Sensor
• Active RFID Readers
• Zigbee Based Sensors for HVAC Control
• Sensor Network Powered by Energy Scavenging
3 Description
The LPV521 is a single nanopower 552-nW amplifier
designed for ultra long life battery applications. The
operating voltage range of 1.6 V to 5.5 V coupled
with typically 351 nA of supply current make it well
suited for RFID readers and remote sensor
nanopower applications. The device has input
common mode voltage 0.1 V over the rails,
guaranteed TCV_OS and voltage swing to the rail
output performance. The LPV521 has a carefully
designed CMOS input stage that outperforms
competitors with typically 40 fA I_BIAS currents. This
low input current significantly reduces I_BIAS and I_OS
errors introduced in megohm resistance, high
impedance photodiode, and charge sense situations.
The LPV521 is a member of the PowerWise™ family
and has an exceptional power-to-performance ratio.
The wide input common mode voltage range,
guaranteed 1 mV V_OS and 3.5 µV/°C TCV_OS enables
accurate and stable measurement for both high-side
and low-side current sensing.
EMI protection was designed into the device to
reduce sensitivity to unwanted RF signals from cell
phones or other RFID readers.
The LPV521 is offered in the 5-pin SC70 package.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
LPV521
SC70 (5)
2.00 mm x 1.25 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Nanopower Supply Current
125°C
800
700
85°C
600
500
400
300
25°C
200
100
-40°C
0
V_CM = V_S ± 0.3V
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
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.