TP2122

1.8-V, 600-nA Nanopower, Rail-to-Rail I/O Operational Amplifiers

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Overview
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Overview

The TP212x is a series of ultra-low-power, precision CMOS op amps featuring a maximum supply current of 950 nA per amplifier with an ultra-low typical input bias current of 1 pA. Analog trim and calibration routine reduce the input offset voltage to below 1.5 mV, and the precision temperature compensation technique makes offset voltage temperature drift at 0.5 μV/°C, which allows the use of the TP212x in systems with high gain without creating excessively large output offset errors.

The TP212x series is unity-gain stable with 1,000-nF capacitive load with a constant 18-kHz GBWP, 10-mV/μs slew rate, which makes it suitable for low-frequency applications, such as battery current monitoring and sensor conditioning. The TP212x operates from a singlesupply voltage from 1.8 V to 6.0 V or a dual-supply voltage from ±0.9 V to ±3.0 V. Beyond the rails input and rail-to-rail output characteristics allow the full power-supply voltage to be used for signal range.

The combined features make the TP212x ideal choices for battery-powered applications because they minimize errors caused by power supply voltage variations over the lifetime of the battery and maintain high CMRR even for a rail-to-rail input op amp. Mobile accessories, wireless remote sensing, backup battery sensors, and single-Li+ or 2-cell NiCd/Alkaline battery-powered systems can benefit from the features of the TP212x op amps.

Status

Production
Rating

Industrial
Channel

2
Supply Voltage (Min)

1.8
Supply Voltage (Max)

6
Iq per channel (Max) (μA)

0.95
GBW (Typ) (MHz)

0.018
Slew Rate (Typ) (V/μs)

0.01
Rail-Rail In

Yes
Rail-Rail Out

Yes
Ishort (Typ) (mA)

20
Vos (Max) (mV)

1.5
Offset Drift (Typ) (μV/°C)

0.5
Ib (typ) (pA)

0.001
Vn (Typ) (nV/rtHz)

170
Peak Noise at 0.1 to 10Hz (μVpp)

6.5
Shutdown/Disable

/
Operating Temperature Range (°C)

-40 to 125
Feature

/
Package

SOP8, MSOP8

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_TP2121-TP2122-TP2124
  
  Data Sheet
  
  English
  
  02/02/2024
  
  1.8V, 600nA Nanopower, Rail-to-Rail Input/Output Op-amps
- 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

• Handsets and Mobile Accessories

• Current Sensing

• Wireless Remote Sensors, Active RFID Readers

• Environment/Gas/Oxygen Sensors

• Threshold Detectors/Discriminators

• Low-Power Filters

• 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
TP2122-VR	Buy now	Request	Industrial Grade	/	Production	$0.373	2013-10-01	MSOP8	10	MSL3	T&R	3000	15000
TP2122-SR	Buy now	Request	Industrial Grade	/	Production	$0.391	2013-10-01	SOP8	9	MSL3	T&R	4000	20000