LTC1609 datasheet(11/24 Pages) LINER

Part #	LTC1609

Description	16-Bit, 200ksps, Serial ADC with Multiple Input Ranges

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC1609

1609fa

Figure 3b. Offset/Gain Circuits for Bipolar Input Ranges

Table 1b. Analog Input Range Connections for Figure 3b

ANALOG INPUT

CONNECT R1IN

CONNECT R2IN

CONNECT R3IN

INPUT

RANGE

VIA 200

Ω TO

VIA 100

Ω TO

TO

IMPEDANCE

±10V

VIN

AGND

CAP

22.9k

Ω

±5V

AGND

VIN

CAP

13.3k

Ω

±3.3V

VIN

CAP

10.7k

Ω

APPLICATIO S I FOR ATIO

+

2.2

µF

2.2

µF

33.2k

100

Ω

200

Ω

VIN

+

R1IN

AGND1

R2IN

R3IN

CAP

REF

AGND2

2.2

µF

+

2.2

µF

50k

33.2k

100

Ω

576k

200

Ω

5V

50k

OFFSET

TRIM

OFFSET

TRIM

GAIN

TRIM

GAIN

TRIM

OFFSET

TRIM

GAIN

TRIM

5V

LTC1609

R1IN

AGND1

R2IN

R3IN

CAP

REF

AGND2

LTC1609

±10V

±5V

±3.3V

WITHOUT TRIM

INPUT RANGE

WITH TRIM

(ADJUST OFFSET FIRST AT 0V, THEN ADJUST GAIN)

VIN

+

2.2

µF

2.2

µF

33.2k

200

Ω

100

Ω

VIN

+

R1IN

AGND1

R2IN

R3IN

CAP

REF

AGND2

2.2

µF

+

2.2

µF

50k

33.2k

200

Ω

100

Ω

576k

5V

50k

5V

LTC1609

R1IN

AGND1

R2IN

R3IN

CAP

REF

AGND2

LTC1609

VIN

+

2.2

µF

2.2

µF

33.2k

100

Ω

200

Ω

VIN

+

R1IN

AGND1

R2IN

R3IN

CAP

REF

AGND2

2.2

µF

1609 F03b

+

2.2

µF

50k

33.2k

100

Ω

200

Ω

576k

5V

50k

5V

LTC1609

R1IN

AGND1

R2IN

R3IN

CAP

REF

AGND2

LTC1609

VIN

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