Very low noise microphone preamplifier with 2.0V bias output with active low stdby mode

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  • The TS472 is a differential-input microphone preamplifier optimized for high-performance PDA and notebook audio systems.

    This device features an adjustable gain from 0 to 40 dB with excellent power-supply and commonmode rejection ratios. In addition, the TS472 has a very low noise microphone bias generator of 2 V.
    It also includes a complete shutdown function, with active low standby mode.

    Key Features

    • Available in flip-chip lead-free package and in QFN24 4 x 4 mm package
    • Low noise 2.0 V microphone bias output
    • ESD protection (2 kV)
    • 40 kHz bandwidth regardless of the gain
    • Low distortion: 0.1% typ.
    • Low noise: 10 nV/√Hz typ. equivalent input noise at F = 1 kHz
    • 2.2 to 5.5 V single supply operation
    • Fully-differential input/output
    • Fast start up time at 0 dB: 5 ms typ.
    • Active low standby mode function (1 μA max)
    • Low power consumption at 20 dB: 1.8 mA

Sample & Buy

Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
Order from ST
min
max
TS472IQT VFQFPN2 24 4x4x1.0 Tape And Reel -40 85
Active
0.763 1000 EAR99
MORE INFO

Country of Origin:

PHILIPPINES

Check Availability

Distributor availability ofTS472IQT

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 4000 0 Order Now
MOUSER WORLDWIDE 6080 1 Order Now
Farnell Element14 EUROPE 2778 1 Order Now

Distributor reported inventory date: 2019-08-08

Distributor Name

ARROW

Stock

4000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6080

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2778

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-08

Buy now
TS472EIJT Chip Scale Package 0.5mm pitch Tape And Reel -40 85
Active
0.63 1000 EAR99
MORE INFO

Country of Origin:

CHINA

Check Availability

Distributor availability ofTS472EIJT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 100 1 Order Now

Distributor reported inventory date: 2019-08-08

Distributor Name

MOUSER

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-08

Buy now

TS472IQT

Package

VFQFPN2 24 4x4x1.0

Packing Type

Tape And Reel

Unit Price (US$)

0.763*

Distributor availability ofTS472IQT

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 4000 0 Order Now
MOUSER WORLDWIDE 6080 1 Order Now
Farnell Element14 EUROPE 2778 1 Order Now

Distributor reported inventory date: 2019-08-08

Distributor Name

ARROW

Stock

4000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6080

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2778

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-08

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.763

Quantity

1000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

TS472EIJT

Package

Chip Scale Package 0.5mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

0.63*

Distributor availability ofTS472EIJT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 100 1 Order Now

Distributor reported inventory date: 2019-08-08

Distributor Name

MOUSER

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-08

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.63

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Related Applications

Evaluation Tools

    • Part Number

      Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS4136
      Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode
      6.1
      687.95 KB
      PDF
      DS4136

      Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode

    • Description Version Size Action
      AN4598
      Pre-amplifying the analog output of a MEMS microphone
      1.0
      325.46 KB
      PDF
      AN2240
      Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias
      4.2
      236.53 KB
      PDF
      AN4598

      Pre-amplifying the analog output of a MEMS microphone

      AN2240

      Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias

    • Description Version Size Action
      AN2240
      Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias
      4.2
      236.53 KB
      PDF
      AN2240

      Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias

Presentations & Training Material

    • Description Version Size Action
      ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0
      1.47 MB
      PDF

      ST offering in Wearable - Analog and Mixed Signal Portfolio

Publications and Collaterals

    • Description Version Size Action
      ST’s solutions for mobile devices 3.2
      2.13 MB
      PDF

      ST’s solutions for mobile devices

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS472EIJT
Active
Chip Scale Package 0.5mm pitch Industrial Ecopack3
TS472IQT
Active
VFQFPN2 24 4x4x1.0 Industrial Ecopack3

TS472EIJT

Package:

Chip Scale Package 0.5mm pitch

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Chip Scale Package 0.5mm pitch

Grade

Industrial

RoHS Compliance Grade

Ecopack3

TS472IQT

Package:

VFQFPN2 24 4x4x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN2 24 4x4x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.