TS12011/TS12012
A 0.8V/1.5µA Nanopower Op Amp, Comparator, and Reference
FEATURES
DESCRIPTION
Nanopower Op Amp, Comparator, and 0.58V
2
Reference in Single 4 mm Package
Ultra Low Total Supply Current: 1.6µA (max)
Supply Voltage Operation: 0.8V to 2.5V
Internal 0.58V Reference
Op Amp and Comparator Input Ranges are
Rail-to-Rail
Unity-gain Stable Op Amp with A
VOL
= 104dB
Op Amp Output: Rail-to-Rail and Phase-
Reversal-Free
Internal ±7.5mV Comparator Hysteresis
20µs Comparator Propagation Delay
Resettable Latched Comparator
TS12011: Push-pull Rail-to-Rail Output Stage
with Crowbar-Current Free Switching
TS12012: Open-drain Output Stage for Wired-
OR or Mixed-Voltage System Applications
The TS12011/TS12012 combine a 0.58V reference, a
20µs analog comparator, and a unity-gain stable
operational amplifier in a single package. All three
devices operate from a single 0.8V to 2.5V power
supply and consume less than 1.6µA total supply
current. Optimized for ultra-long life, single-cell and
battery-powered applications, these devices expand
Touchstone’s growing “NanoWatt Analog™” high-
performance analog integrated circuits portfolio.
Both the analog comparator and the op amp feature
rail-to-rail input stages. The analog comparator
exhibits ±7.5mV of internal hysteresis for clean,
chatter-free output switching. The internal reference
was designed to sink or source up to 0.1µA load
currents. When compared against similar products,
the TS12011 and the TS12012 offer a factor-of-20
lower power consumption and at least a 55%
reduction in pcb area.
The TS12011 and the TS12012 are fully specified
over the -40°C to +85°C temperature range and each
is available in a low-profile, 10-pin 2x2mm TDFN
package with an exposed back-side paddle.
APPLICATIONS
Low-Frequency, Local-Area Alarms/Detectors
Smoke Detectors and Safety Sensors
Infrared Receivers for Remote Controls
Instruments, Terminals, and Bar-Code Readers
Battery-powered Systems
Smart-Card Readers
TYPICAL APPLICATION CIRCUIT
Pilot Light Flame Detector with Low-Battery Lockout Circuit
Part Number
TS12011
TS12012
The Touchstone Semiconductor logo and “NanoWatt Analog” are
registered trademarks of Touchstone Semiconductor, Incorporated.
Comparator
Output Stage
Push-pull
Open-Drain
Page 1
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
TOUCHSTONE [ TOUCHSTONE SEMICONDUCTOR INC ]
