TP2111

600-nA, 5-V Operational Amplifier

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Overview
Development Resources
Application
Ordering Detail

Overview

The TP211x series is an ultra-low power, precision CMOS operational amplifier that provides a constant 10-kHz bandwidth and a 10-mV/μs slew rate with a maximum quiescent current of only 600 nA per amplifier. The groundsensing input common-mode range, which guarantees a 1.5-mV VOS and an ultra-low 0.4-μV/°C VOS TC, enables an accurate and stable measurement for both the high-side and low-side current sensing.

The TP211x series has a carefully designed CMOS input stage that outperforms competitors with a typically 0.1-fA IB. This ultra-low input current significantly reduces IB and IOS errors introduced in the giga-Ω resistance, high-impedance photodiode, and charge sense situations. The TP211x series is unity gain stable with a 1,000-nF capacitive load. It can operate from a single-supply voltage of +1.8 V to +5.5 V or a dual-supply voltage of ±0.9 V to ±2.75 V, and features ground-sensing inputs and the rail-to-rail output.

The combined features make the TP211x series ideally suited for a variety of 2-cell NiCd/Alkaline battery or single-Li+ battery-powered portable applications. Potential applications include low-frequency signal conditioning, mobile accessories, wireless remote sensing, vibration monitors, ECGs, pulse monitors, glucose meters, smoke and fire detectors, and backup battery sensors.

Status

Production
Rating

Industrial
Channel

1
Supply Voltage (Min)

1.8
Supply Voltage (Max)

5.5
Iq per channel (Max) (μA)

0.6
GBW (Typ) (MHz)

0.01
Slew Rate (Typ) (V/μs)

0.006
Rail-Rail In

Yes
Rail-Rail Out

Yes
Ishort (Typ) (mA)

20
Vos (Max) (mV)

1.5
Offset Drift (Typ) (μV/°C)

0.4
Ib (typ) (pA)

1
Vn (Typ) (nV/rtHz)

265
Peak Noise at 0.1 to 10Hz (μVpp)

10
Shutdown/Disable

/
Operating Temperature Range (°C)

-40 to 125
Feature

/
Package

SOT353, SOT23-5

Development Resources

Documentation

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Documentation
- Data Sheet
- Selection Guide
- Application Note
- Technical Note
- User Guide
- Test Report
- Document Name
- Type
- Language
- Date
- Datasheet_TP2111-TP2112
  
  Data Sheet
  
  English
  
  02/02/2024
  
  600-nA, 5-V Operational Amplifier
- Introduction to Latch-up and the Preventive Measures
  
  Technical Note
  
  English
  
  01/19/2024
- Application Tips on ESD-EOS
  
  Technical Note
  
  English
  
  01/19/2024
- Analyzing the Power Supply Design of Operational Amplifiers with Examples
  
  Technical Note
  
  English
  
  01/19/2024
- 3PEAK Analog Products Selection Guide
  
  Selection Guide
  
  English
  
  01/19/2024

Application

• Current Sensing

• Threshold Detectors/Discriminators

• Low Power Filters

• Handsets and Mobile Accessories

• Wireless Remote Sensors, Active RFID Readers

• Gas/Oxygen/Environment Sensors

• Battery or Solar Powered Devices

• Sensor Network Powered by Energy Scavenging

Ordering Detail

Order Part Number	Buy	Samples	Rating	Feature	Status	1ku Price	Release Date	Package	Lead time (week)	MSL	Packing	MPQ	CPQ
TP2111-TR	Buy now	Request	Industrial Grade	AEC-Q100 Qualified	Released	$0.311	2013-10-01	SOT23-5	9	MSL3	T&R	3000	120000
TP2111-CR	Buy now	Request	Industrial Grade	AEC-Q100 Qualified	Released	$0.311	2013-10-01	SOT353	9	MSL3	T&R	3000	120000