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TS12011/TS12012

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

FEATURES

DESCRIPTION



NanoWatt Analog™ Op Amp, Comparator, and

0.58V Reference in Single 4 mm

Package

Ultra Low Total Supply Current: 1.6µA (max)

Supply Voltage Range: 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

TS12012: Open-drain Output

The TS12011/TS12012 combine a 0.58V reference, a

20µs 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 1.6µA

total supply current. Supply current for all three

functions over 0.8V to 2.5V supply range is

guaranteed 1.6µA 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 ±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.

The TS12011’s comparator has a push-pull output

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

through currents. The TS12012’s 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 -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

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

TYPICAL APPLICATION CIRCUIT

Part Number

TS12011

TS12012

Comparator

Output Stage

Push-pull

Open-Drain

Page 1

TS12011/TS12012

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (V

to V

) ................................................. +2.75 V

Input Voltage

AMPIN+, AMPIN-…………………….….V

– 0.3V to V

+ 0.3V

COMPIN+, COMPIN-…..........................V

– 0.3V to V

+ 0.3V

LHDET………………………………..…….….. V

- 0.3V to +5.5V

Output Voltage

AMPOUT, REFOUT……….………….....V

– 0.3V to V

+ 0.3V

COMPOUT (TS12011)………….........…V

- 0.3V to V

+ 0.3V

COMPOUT (TS12012)……...…..………….…V

- 0.3V to +5.5V

Differential Input Voltage (AMPIN, COMPIN)........................ ±2.75V

Output Current

AMPOUT, COMPOUT…………………...............................50mA

Short-Circuit Duration

(REFOUT, AMPOUT, COMPOUT)………………...….Continuous

Continuous Power Dissipation (T

= +70°C)

10-Pin TDFN (Derate at 13.48mW/°C above +70°C) ......... 1078mW

Operating Temperature Range ................................. -40°C to +85°C

Junction Temperature……………………………………..……+150°C

Storage Temperature Range .................................. -65°C to +150°C

Lead Temperature (Soldering, 10s)...................................... +300°C

Electrical and thermal stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These

are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections

of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and

lifetime.

PACKAGE/ORDERING INFORMATION

ORDER NUMBER

PART

CARRIER QUANTITY

MARKING

ORDER NUMBER

PART

CARRIER QUANTITY

MARKING

TS12011ITD1022

AAL

TS12011ITD1022T

Tape

& Reel

Tape

& Reel

-----

3000

TS12012ITD1022

AAM

TS12012ITD1022T

Tape

& Reel

Tape

& Reel

-----

3000

Lead-free Program:

Silicon Labs supplies only lead-free packaging.

Consult Silicon Labs for products specified with wider operating temperature ranges.

Page 2

TS12011/12 Rev. 1.0

TS12011/TS12012

ELECTRICAL CHARACTERISTICS

= 0.8V; V

= 0V; V

COMPIN+/-

= 0V; V

AMPIN+/-

= 0V; V

AMPOUT

= (V

+ V

)/2; V

COMPOUT

= HiZ; T

= -40°C to +85°C, unless otherwise noted.

Typical values are at T

= +25°C. See note 1.

PARAMETER

SYMBOL CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

0.8

2.5

1.1

1.6

= +25°C

µA

Supply Current

REFOUT = open

-40°C

≤

85°C

REFERENCE SECTION

555

577

600

= +25°C

Reference Output

= 0.8V or 2.5V

REFOUT

Voltage

-40°C

≤

85°C

552

602

Reference Load

0.5

OUT

= ±100nA

Regulation

AMPLIFIER SECTION

3.5

= +25°C

Input Offset Voltage

AMPIN+/-

= V

or V

AMPIN+/-

= V

-40°C

≤

85°C

Input Bias Current

Input Offset Current

Input Common-Mode

Range

Large-Signal Voltage

Gain

Gain-Bandwidth

Product

Phase Margin

Slew Rate

Common-Mode

Rejection Ratio

Power-Supply

Rejection Ratio

Output High Voltage

Output Low Voltage

Output Source

Current

Output Sink Current

Output Load

Capacitive Drive

Input Offset Voltage

Input Hysteresis

Input Bias Current

Input Offset Current

Input Voltage Range

Common-Mode

Rejection Ratio

Power-Supply

Rejection Ratio

Low-to-High

Propagation Delay

High-to-Low

Propagation Delay

Output High Voltage

Output Low Voltage

Output Short-Circuit

Current

Open Drain Leakage

IN+

, I

N-

IVR

VOL

GBWP

CMRR

PSRR

SC+

SC-

OUT

COMPARATOR SECTION

= +25°C

AMPIN+/-

= V

; V

AMPIN+/-

= V

;

See Note 2

-40°C

≤

85°C

See Note 3

COMPIN+,

COMPIN-

= V

or V

COMPIN+,

COMPIN-

= V

or V

Guaranteed by Input Offset Voltage Test

≤

IN(CM)

≤

2.1V; V

= 2.5V

0.8V

≤

- V

)

≤

2.5V

OVERDRIVE

= 10mV; See Note 4

TS12011

OVERDRIVE

= 100mV; See Note 4

OVERDRIVE

= 10mV; See Note 4

OVERDRIVE

= 100mV; See Note 4

TS12011; I

OUT

= -100μA

TS12011 ; I

OUT

= 100μA

TS12012 ; I

OUT

= 100μA

Sourcing; V

COMPOUT

= V

TS12011 ; Sinking; V

COMPOUT

= V

TS12012 ; Sinking; V

COMPOUT

= V

TS12012 ; V

COMPOUT

= 5V

AMPIN+,

AMPIN-

= (V

– V

)/2

AMPIN+,

AMPIN-

= (V

– V

)/2

Guaranteed by Input Offset Voltage Test

= 100K to V

/2;

+ 50mV < V

OUT

< V

- 50mV

= 100kΩ//20pF

≤

IN(CM)

≤

2.1V; V

= 2.5V

0.65V

≤

- V

)

≤

2.5V

= 100kΩ to V

AMPOUT

= V

AMPOUT

= V

– 50mV

+ 50mV

0.28

4.5

±7.5

0.2

– 0.1

+ 0.1

+ 0.11

0.1

0.5

1.4

104

0.01

kHz

deg

V/ms

µs

IN+

, I

N-

IVR

CMRR

PSRR

PD+

PD-

TS12011/12 Rev. 1.0

Page 3

TS12011/TS12012

= 0.8V, V

= 0V, V

COMPIN+/-

= 0V, V

AMPIN+/-

= 0V, V

AMPOUT

= (V

+ V

)/2, V

COMPOUT

= HiZ. T

= -40°C to +85°C, unless otherwise noted.

Typical values are at T

= +25°C. See note 1.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP MAX UNITS

CONTROL PIN SECTION

0.1

Comparator Latched Output 0.8V

≤

1.1V

LHDET Input Low Voltage

Enabled

1.1V < V

≤

2.5V

0.2

- 0.1

Comparator Latched Output 0.8V

≤

1.1V

LHDET Input High Voltage

Disabled

1.1V < V

≤

2.5V

LHDET Input Leakage

LHDET

= V

; V

LHDET

= 5.5V

100

Note 1:

All devices are 100% production tested at T

= +25°C and are guaranteed by characterization for T

= T

MIN

to T

MAX

, as specified.

Note 2:

is defined as the center of the hysteresis band at the input minus V

IN(CM).

Note 3:

The hysteresis-related trip points are defined by the edges of the hysteresis band and measured with respect to the center of

the hysteresis band.

Note 4:

The propagation delays are specified with an output load capacitance of C

= 15pF. V

OVERDRIVE

is defined above and is beyond the

offset voltage and hysteresis of the comparator input.

Page 4

TS12011/12 Rev. 1.0

TS12011/TS12012

TYPICAL PERFORMANCE CHARACTERISTICS

= 2.5V; V

= 0V; V

AMPOUT

= HiZ; V

COMPOUT

= HiZ, unless otherwise noted. Typical values are at T

= +25°C.

Supply Current

vs Supply Voltage and Temperature

1.6

REFERENCE VOLTAGE - V

0.589

Reference Voltage vs Temperature

SUPPLY CURRENT - µA

1.4

= +85ºC

0.587

1.2

= +25ºC

0.585

= -40ºC

0.8

1.23

1.65

2.08

2.5

SUPPLY VOLTAGE - V

Op Amp Short-Circuit Current

vs Supply Voltage

0.583

0.581

-40

-15

TEMPERATURE - ºC

Comparator Short-Circuit Current

vs Supply Voltage

SHORT-CIRCUIT CURRENT - mA

AMPOUT

= V

COMPOUT

= V

0.8

1.23

1.65

2.08

2.5

0.8

1.23

1.65

2.08

2.5

SUPPLY VOLTAGE - V

Op Amp Short-Circuit Current

vs Supply Voltage

SHORT-CIRCUIT CURRENT - mA

AMPOUT

= V

38.5

SUPPLY VOLTAGE - V

Comparator Short-Circuit Current

vs Supply Voltage

COMPOUT

= V

25.5

0.8

1.23

1.65

2.08

2.5

0.8

1.23

1.65

2.08

2.5

SUPPLY VOLTAGE - V

TS12011/12 Rev. 1.0

Page 5