LTC2662 datasheet(10/28 Pages) AD

10 / 28 page

LTC2662

Rev 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Dropout Voltage

vs Code, 200mA Range

Dropout vs Total Supply Voltage

Mid–Scale Glitch

DAC–to–DAC Crosstalk (Falling)

DAC–to–DAC Crosstalk (Rising)

Current Noise Density

vs Frequency

Large Signal Response

0.731V

0.538V

0.353V

0.174V

CODE 65535

CODE 49152

CODE 32768

CODE 16384

DROPOUT VOLTAGE VDDX-VOUTX (V)

0.25

0.50

0.75

1.25

1.50

100

125

150

175

200

225

250

2662 G10

200mA RANGE

IOUTX = 200mA

TOTAL SUPPLY VDDX-V–(V)

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

2662 G11

IOUTX: 100mA

RANGE: 200mA

RLOAD = 4Ω

180pA–s TYP

1µs/DIV

IOUTX

250µA/DIV

2662 G12

data0

data1

CH1: 200mA RANGE, IOUT1 = 100mA

CH0: 200mA RANGE, 200mA TO 100mA STEP

[FALLING TRANSITION]

ALL CHANNELS RLOAD=15Ω, CLOAD=0

INTERNAL REFERENCE

CREF, CREFCOMP: 0.1µF

50pA–s TYP

2µs/DIV

IOUT1

100µA/DIV

CS/LD

2662 G13

data0

data1

CH1: 200mA RANGE, IOUT1 = 100mA

CH0: 200mA RANGE, 100mA TO 200mA STEP

[RISING TRANSITION]

ALL CHANNELS RLOAD = 15Ω, CLOAD = 0

150pA–s TYP

INTERNAL REFERENCE

CREF, CREFCOMP: 0.1µF

2µs/DIV

IOUT1

100µA/DIV

CS/LD

2662 G14

CURRENT NOISE IN RLOAD ( = 4Ω)

(CL PARALLEL TO RLOAD)

CL = 10µF AND CL=1µF TRACES CALCULATED

FROM CL=0 MEASUREMENTS

CL=0

CL=1µF

CL=10µF

FREQUENCY (Hz)

100

10k

100k

10M

2662 G15

200mA RANGE; RLOAD = 15Ω

5µs/DIV

2662 G18

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