LTC2753 Linear Technology, LTC2753 Datasheet

LTC2753

Manufacturer Part Number

LTC2753

Description

Dual Current Output 12-/14-/16-Bit SoftSpan DACs

Manufacturer

Linear Technology

Datasheet

1.LTC2753.pdf (24 pages)

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FEATURES

APPLICATIONS

■

TYPICAL APPLICATION

REF

Six Programmable Output Ranges

Maximum 16-Bit INL Error: ±1 LSB over Temperature

Low 1μA (Maximum) Supply Current

Guaranteed Monotonic over Temperature

Low Glitch Impulse 1nV•s

2.7V to 5.5V Single Supply Operation

2μs Settling Time to ±1 LSB

Parallel Interface with Readback of All Registers

Asynchronous CLR Pin Clears DAC Outputs to 0V in

Any Output Range

Power-On Reset to 0V

48-Pin 7mm × 7mm QFN Package

High Resolution Offset and Gain Adjustment

Process Control and Industrial Automation

Automatic Test Equipment

Data Acquisition Systems

Unipolar: 0V to 5V, 0V to 10V

Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V

Dual 16-Bit V

1/2 LT1469

150pF

–

SPAN I/O

DATA I/O

OUT

REFA

REFB

OFSB

OFSA

COM

DAC with Software-Selectable Ranges

I/O PORT

DAC A

DAC B

LTC2753-16

OUT1A

OUT2A

OUT2B

OUT1B

FBA

VOSA

VOSB

FBB

15pF

–

1/2 LT1469

DESCRIPTION

The LTC

multiplying parallel-input, current-output DACs. These

DACs operate from a single 2.7V to 5.5V supply and are all

guaranteed monotonic over temperature. The LTC2753A-16

provides 16-bit performance (±1LSB INL and DNL) over

temperature without any adjustments. These SoftSpan™

DACs offer six output ranges—two unipolar and four

bipolar—that can be programmed through the parallel

interface, or pinstrapped for operation in a single range.

The LTC2753 DACs use a bidirectional input/output parallel

interface that allows readback of any on-chip register. A

power-on reset circuit resets the DAC outputs to 0V when

power is initially applied. A logic low on the CLR pin asyn-

chronously clears the DACs to 0V in any output range.

The parts are speciﬁ ed over commercial and industrial

temperature ranges.

SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

2753 TA01

, LT , LTC and LTM are registered trademarks of Linear Technology Corporation.

OUTA

OUTB

12-/14-/16-Bit SoftSpan

2753 is a family of dual 12-, 14-, and 16-bit

DACs with Parallel I/O

Dual Current Output

–1.0

–0.2

–0.4

–0.6

–0.8

1.0

0.8

0.6

0.4

0.2

0.0

LTC2753-16 Integral Nonlinearity (INL)

±10V RANGE

REF

= 5V

16384

32768

CODE

LTC2753

49152

25°C

90°C

–45°C

2753 TA01b

65535

2753f

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