Datasheet LTC2066, LTC2067, LTC2068 (Analog Devices)

HerstellerAnalog Devices
Beschreibung10µA Supply Current, Low IB, Zero-Drift Operational Amplifier
Seiten / Seite30 / 1 — FEATURES. DESCRIPTION. Low Supply Current: 10μA Maximum (per Amplifier). …
RevisionB
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DokumentenspracheEnglisch

FEATURES. DESCRIPTION. Low Supply Current: 10μA Maximum (per Amplifier). Offset Voltage: 5μV Maximum

Datasheet LTC2066, LTC2067, LTC2068 Analog Devices, Revision: B

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LTC2066/LTC2067/LTC2068 10µA Supply Current, Low IB, Zero-Drift Operational Amplifier
FEATURES DESCRIPTION
n
Low Supply Current: 10μA Maximum (per Amplifier)
The LTC®2066/LTC2067/LTC2068 are single, dual, n
Offset Voltage: 5μV Maximum
and quad low power, zero-drift, 100kHz amplifiers. The n
Offset Voltage Drift: 0.02μV/°C Maximum
LTC2066/LTC2067/LTC2068 enable high resolution mea- n
Input Bias Current:
surement at extremely low power levels. n
5pA Typical
Typical supply current is 7.5µA per amplifier with a maxi- n
50pA Maximum, –40°C to 85°C
mum of 10µA. The available shutdown mode has been n
150pA Maximum, –40°C to 125°C
optimized to minimize power consumption in duty-cycled n
Integrated EMI Filter (90dB Rejection at 1.8GHz)
applications and features low charge loss during power- n
Shutdown Current: 170nA Maximum (per Amplifier)
up, reducing total system power. n Rail-to-Rail Input and Output n 1.7V to 5.25V Operating Supply Range The LTC2066/LTC2067/LTC2068’s self-calibrating cir- n A cuitry results in very low input offset (5µV max) and offset VOL: 140dB Typical n Low-Charge Power-Up for Duty Cycled Applications drift (0.02µV/°C). The maximum input bias current is only n Specified Temperature Ranges: 35pA and does not exceed 150pA over the full specified n –40°C to 85°C temperature range. The extremely low input bias current n –40°C to 125°C of the LTC2066/LTC2067/LTC2068 allows the use of high n SC70, TSOT23, MS8, DFN10, TSSOP14 and value power-saving resistors in the feedback network. QFN16 Packages With its ultralow quiescent current and outstanding pre- cision, the LTC2066/LTC2067/LTC2068 can serve as a
APPLICATIONS
signal chain building block in portable, energy harvest- n Signal Conditioning in Wireless Mesh Networks ing and wireless sensor applications. n Portable Instrumentation Systems The LTC2066 is available in 6-lead SC70 and 5-lead TSOT- n Low-Power Sensor Conditioning 23 packages. The LTC2067 is available in 8-lead MSOP n Gas Detection and 10-lead DFN packages. The LTC2068 is available in n Temperature Measurement 14-lead TSSOP and 16-lead 3mm × 3mm QFN packages. n Medical Instrumentation These devices are fully specified over the –40°C to 85°C n Energy Harvesting Applications and –40°C to 125°C temperature ranges. n Low Power Current Sensing All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION Output Voltage vs Sense Current
2.5
Precision Micropower Low Side Current Sense
1 10k 1M (V) 0.1% 0.1% OUT VIN 3.3V 0.1 – TAGE, V LOAD 10k* LTC2066 V 0.1% OUT = 10 • ISENSE + 1mV TO 2.5V 0.01 OUTPUT VOL ISENSE 100mΩ 2066 TA01a 100µA TO 250mA 0.1% *RESISTOR CANCELS OUT PARASITIC SEEBECK EFFECT VOLTAGE 0.0010.1 1 10 100 250 ISENSE (mA) 2066 TA01b Rev. B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Revision History Typical Application Related Parts