TS12011 Datasheet, PDF(1/18 Page) Touchstone Semiconductor Inc – A 0.8V/1.5uA Nanopower Op Amp, Comparator, and Reference

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TS12011 Datasheet, PDF (1/18 Pages) Touchstone Semiconductor Inc – A 0.8V/1.5uA Nanopower Op Amp, Comparator, and Reference

TS12011/TS12012

A 0.8V/1.5ÂµA Nanopower Op Amp, Comparator, and Reference

FEATURES

ï´ NanoWatt Analogâ¢ Op Amp, Comparator, and

0.58V Reference in Single 4 mm2 Package

ï´ Ultra Low Total Supply Current: 1.6ÂµA (max)

ï´ Supply Voltage Range: 0.8V to 2.5V

ï´ Internal 0.58V Reference

ï´ Op Amp and Comparator Input Ranges are

Rail-to-Rail

ï´ Unity-gain Stable Op Amp with AVOL = 104dB

ï´ Op Amp Output: Rail-to-Rail and Phase-

Reversal-Free

ï´ Internal Â±7.5mV Comparator Hysteresis

ï´ 20Âµs Comparator Propagation Delay

ï´ Resettable Latched Comparator

ï´ TS12011: Push-pull Rail-to-Rail Output

TS12012: Open-drain Output

APPLICATIONS

DESCRIPTION

The TS12011/TS12012 combine a 0.58V reference, a

20Âµs comparator, and a unity-gain stable op amp in a

single IC. All three devices operate from a single 0.8V

to 2.5V power supply and consume less than 1.6ÂµA

total supply current. Supply current for all three

functions over 0.8V to 2.5V supply range is

guaranteed 1.6ÂµA max.

Super-flexible for crafting voltage detectors, timers,

and wake-up circuits, these bundled functions exhibit

low shoot-through currents and graceful power-down

modes. Both the comparator and the op amp feature

rail-to-rail input stages. The latching comparator

exhibits Â±7.5mV of internal hysteresis for clean,

chatter-free output switching. When compared

against similar products, the TS12011/TS12012 offer

a factor-of-20 lower power consumption and at least a

55% reduction in pcb area.

Battery-powered Systems

Single-Cell and +1.8V, +2.5V Powered Systems

Low-Frequency, Local-Area Alarms/Detectors

Smoke Detectors and Safety Sensors

Infrared Receivers for Remote Controls

Instruments, Terminals, and Bar-Code Readers

Smart-Card Readers

The TS12011âs comparator has a push-pull output

stage with break-before-make switches for low shoot-

through currents. The TS12012âs comparator has an

open-drain output having no parasitic diode to VDD,

for interfacing to wired-OR or mixed-voltage logic.

The TS12011 and the TS12012 are fully specified

over the -40Â°C to +85Â°C temperature range and each

is available in a low-profile, 10-pin 2x2mm TDFN

package with an exposed back-side paddle.

TYPICAL APPLICATION CIRCUIT

Part Number

TS12011

TS12012

Comparator

Output Stage

Push-pull

Open-Drain

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