LTC1590CS datasheet(3/12 Pages) LINER

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LTC1590

VCC = 4.5V to 5.5V, VREF = 10V, VOUT1 = VOUT2 = AGND = DGND = 0V, TA = TMIN to TMAX, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Analog Outputs

COUT

Output Capacitance (Note 3)

DAC Register Loaded to All 1s

DAC Register Loaded to All 0s

Digital Input

VIH

Digital Input High Voltage

2.4

VIL

Digital Input Low Voltage

0.8

IIN

Digital Input Current

0.001

±1

µA

CIN

Digital Input Capacitance

(Note 3) VIN = 0V

8pF

Digital Output

VOH

Digital Output High Voltage

IOH = 200µA

VOL

Digital Output Low Voltage

IOH = 1.6mA

0.4

Timing Characteristics

DIN to CLK Setup Time

DIN to CLK Setup Hold Time

0ns

CLK High Time

CLK Low Time

CS/LD High Time

LSB CLK to CS/LD

CS/LD Low to CLK High

CLK Low to CS/LD Low

CLK to DOUT Delay

160

Power Supply

VCC

Operating Supply Range

4.5

5.5

ICC

Supply Current

Digital Inputs = 0V or VCC

µA

Note 8: Glitch on DAC A or DAC B output when the other DAC makes a

full-scale transition.

Note 9: 10Hz to 100kHz. Calculation from en = √4KTRB where:

K = Boltzmann constant (J/K

°); R = resistance (Ω); T = resistor temperature

(

°K); B = bandwidth (Hz).

Note10: VREF = 6VRMS at 1kHz. DAC register loaded with all 1s, using

®1124 op amp.

Note 11: VREF = ±10V, 10kHz sine wave, DAC register loaded with all 0s,

using LT1358 op amp.

Note 12: –3dB bandwidth using LT1358 op amp.

The q denotes specifications which apply over the full operating

temperature range.

Note 1:

±0.5LSB = ±0.012% of full scale.

Note 2: Using internal feedback resistor.

Note 3: Guaranteed by design, not subject to test.

Note 4: IOUT1 with DAC register loaded with all 0s.

Note 5: OUT1 load = 100

Ω in parallel with 13pF.

Note 6: VREF = 0V. DAC register contents changed from all 0s to all 1s or

all 1s to all 0s.

Note 7: DAC A output with VREF A = 0V and VREF B = 10kHz 20VP-P, or

DAC B output with VREF B = 0V, VREF A = 10kHz 20VP-P. Both DAC registers

loaded with all 1s.

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