LTC7541A datasheet(3/4 Pages) LINER

3 / 4 page

LTC7541A

VDD = 15V, VREF = 10V, OUT 1 = OUT 2 = GND = 0V, TA = TMIN to TMAX, unless otherwise specified.

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 all digital inputs = 0V or IOUT2 with all digital

inputs = VDD.

Note 5: OUT 1 load = 100

Ω in parallel with 13pF.

Note 6: Measured from digital input change to 90% of final analog value.

Digital inputs = 0V to VDD or VDD to 0V.

Note 7: VREF = 0V. All digital inputs 0V to VDD or VDD to 0V. Measured

using LT1363 as output amplifier.

ELECTRICAL CHARACTERISTICS

BLOCK DIAGRAM

40k

10k

40k

20k

40k

20k

40k

20k

40k

DECODER

BIT 1

(MSB)

BIT 2

GND

VDD

VREF

RFB

BIT 3

BIT 4

BIT 12

(LSB)

OUT 1

OUT 2

7541 BD

TTL/DTL/CMOS COMPATIBLE DIGITAL INPUTS

• • • •

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

ALL GRADES

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Power Supply

VDD

Operating Supply Range

515

IDD

Suppy Current

Digital Inputs = VIH or VIL

2mA

Digital Inputs = 0V or VDD

100

µA

Digital Inputs

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

AC Performance

Propagation Delay

(Notes 5, 6)

100

Digital-to-Analog Glitch Impulse

(Notes 5, 7)

1000

nV-sec

Multiplying Feedthrough Error

VREF = ±10V, 10kHz Sinewave

1.0

mVP-P

Output Current Settling Time

(Note 5), To 0.01% for Full-Scale Change

0.6

µs

COUT

Output Capacitance (Note 3)

Digital Inputs = VIH

COUT1

200

COUT2

Digital Inputs = VIL

COUT1

COUT2

200

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