LT1054C(RevD) View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LT1054C
(Rev.:RevD)

Switched-Capacitor Voltage Converter with Regulator

Linear Technology 

LT1054/LT1054L

TYPICAL APPLICATIONS N

Bipolar Supply Doubler

VIN

3.5V TO 15V

+

+VOUT

–

100µF

10µF

10µF

10µF

FB/SHDN V+

CAP+ OSC

LT1054

GND VREF

CAP – VOUT

100µF

VIN = 3.5V TO 15V

+VOUT ≈ 2VIN – (VL + 2VDIODE)

–VOUT ≈ –2VIN + (VL + 2VDIODE)

VL = LT1054 VOLTAGE LOSS

= 1N4001

100µF

–VOUT

LT1054 • TAO7

10µF

5V to ±12V Converter

VIN = 5V

5µF

FB/SHDN V+

CAP+ OSC

LT1054 #1

GND VREF

CAP – VOUT

VOUT ≈ 12V

IOUT = 25mA

100µF

2N2219

1k

1N914

100µF

5µF

1N914

10µF FB/SHDN V+

CAP+ OSC

10µF LT1054 #2

GND VREF

CAP – VOUT

TO PIN 4

LT1054 #1

20k

100µF

VOUT ≈ –12V

IOUT = 25mA

LT1054 • TAO8

INPUT TTL

OR CMOS

LOW FOR ON

Strain Gauge Bridge Signal Conditioner

10k

5V

10k

2N2907

0.022µF 8

2 100k

1

A1

1/2 LT1013

3

100k

200k

10k

40Ω

ZERO

TRIM

301k

350Ω

10µF

5k

GAIN

5k TRIM 6 –

A2

10k

5 +1/2 LT1013

4

1µF

1M

7

10µF

FB/SHDN V+ 5V

CAP+ OSC

LT1054

GND VREF

CAP – VOUT

3k

2N2222

100µF

TANTALUM

LT1054 • TAO9

A = 125 FOR 0V TO 3V OUT FROM FULL-SCALE

BRIDGE OUTPUT OF 24mV

11

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