LTC2668IUJ-16 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC2668IUJ-16

16-Channel 16-/12-Bit ±10V VOUT SoftSpan DACs with 10ppm/°C Max Reference

Linear Technology 

1 2 3 4 5 6 7 8 9 10 Next

LTC2668

Typical Performance Characteristics TA = 25°C, unless otherwise noted.

Settling 20V Step

CS/LD

VOUT = 5V/DIV

tSETTLE = 20.2µs

VOUT RESIDUAL

500µV/DIV

10µs/DIV

2668 G10

±10V RANGE; INTERNAL REFERENCE

RISING 20V STEP; AVERAGE OF 64 EVENTS.

FALLING SETTLING IS SIMILAR OR BETTER.

SUBTRACT 100ns FIXTURE DELAY FROM

SETTLING WAVEFORM.

LTC2668-16/LTC2668-12

Gain Error vs Reference Input

0.15

±10V RANGE

16 CHANNELS

0.10

Integral Nonlinearity (INL)

(LTC2668-12)

1.0

±10V RANGE

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

0

1024

2048

CODE

3072

4095

2668 G11

Bipolar Zero Error

vs Reference Input

0.10

±10V RANGE

16 CHANNELS

0.10

0.05

0

0

–0.05

–0.05

–0.10

–0.1

0.5 1 1.5 2 2.5 3 3.5

VREF (V)

2668 G13

–0.15

0.5 1 1.5 2 2.5 3 3.5

VREF (V)

2668 G14

Reference Output vs Temperature

2.506

2.504

2.502

2.500

2.498

2.496

2.494

–40 –20 0 20 40 60 80 100 120

TEMPERATURE (°C)

2668 G16

Unipolar Offset vs Temperature

4

3

2

1

0V TO 10V RANGE

0

0V TO 5V RANGE

–1

–2

–3

–4

–40 –20 0 20 40 60 80 100 120

TEMPERATURE (°C)

2668 G17

For more information www.linear.com/LTC2668

Differential Nonlinearity (DNL)

(LTC2668-12)

0.5

±10V RANGE

0.4

0.3

0.2

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

0

1024

2048

CODE

3072

4095

2668 G12

Single-Supply Zero-Scale Error

vs Temperature

4

0V TO 5V RANGE

VV(AVV+P)==55VV

3 V(V–) = 0V

2

1

0

–40 –20 0 20 40 60 80 100 120

TEMPERATURE (°C)

2668 G15

Headroom to V– Rail

vs Output Current

1.0

0V TO 5V RANGE; V+ = 4.5V, V– = GND

±5V RANGE; V+/V– = ±4.5V

0.8

CODE: ZERO-SCALE

0.6

0.4

0.2

0

0

2

4

6

8

10

OUTPUT CURRENT SINKING (mA)

2668 G18

2668fa

9

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