Linear Technology DC1111A - LTC2753-16: 16-bit, Dual, SoftSpan, 1LSB INL Iout DAC, req. DC590 DC1111A DC1111A Scheda Tecnica

LTC2753

1

2753f

Dual Current Output 

12-/14-/16-Bit SoftSpan 

DACs with Parallel I/O

The LTC

®

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

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.

■

  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

 

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

SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the 
property of their respective owners.

CODE

0

–1.0

INL (LSB)

–0.8

–0.4

–0.2

0.0

1.0

0.4

16384

32768

–0.6

0.6

0.8

0.2

49152

65535

2753 TA01b

25°C
90°C
–45°C

V

DD

= 5V

V

REF

= 5V

±10V RANGE

+

–

–

+

–

+

SPAN I/O

DATA I/O

DAC A

46

47

R1

R2

2

1

48

39

40

LTC2753-16

R

FBA

I

OUT1A

V

OUTA

V

OUTB

I

OUT2A

R

VOSA

R

VOSB

I

OUT2B

I

OUT1B

R

FBB

45

4

44

43

32

42

41

R

OFSB

REFB

REFA

150pF

15pF

15pF

1/2 LT1469

1/2 LT1469

1/2 LT1469

R

COM

R

IN

R

OFSA

V

REF

5V

DAC B

2753 TA01

16

3

I/O PORT

I/O PORT