LT1468CDD-2TRPBF datasheet(5/12 Pages) LINER

Part #	LT1468CDD-2TRPBF

Description	16-Bit DAC Current-to-Voltage Converter

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT1468-2

5

14682fa

ELECTRICAL CHARACTERISTICS The l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. –40°C ≤ TA ≤ 85°C, VCM = 0V unless otherwise noted.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The inputs are protected by back-to-back diodes and two 100Ω

series resistors. If the differential input voltage exceeds 0.7V, the input

current should be limited to 10mA. Input voltages outside the supplies will

be clamped by ESD protection devices and input currents should also be

limited to 10mA.

Note 3: A heat sink may be required to keep the junction temperature

below absolute maximum when the output is shorted indeﬁnitely.

Note 4: The LT1468C-2 is guaranteed to meet speciﬁed performance from

0°C to 70°C and is designed, characterized and expected to meet these

extended temperature limits, but is not tested at – 40°C and at 85°C. The

LT1468I-2 is guaranteed to meet the extended temperature limits.

Note 5: Slew rate is measured between ±8V on the output with ±12V input

for ±15V supplies and ±2V on the output with ±3V input for ±5V supplies.

Note 6: Full power bandwidth is calculated from the slew rate

measurement: FPBW = SR/2πVP

Note 7: This parameter is not 100% tested.

SYMBOL

PARAMETER

CONDITIONS

VSUPPLY

MIN

TYP

MAX

UNITS

AVOL

Large-Signal Voltage Gain

VOUT = ±12V, RL = 10k

VOUT = ±10V, RL = 2k

VOUT = ±2.5V, RL = 10k

VOUT = ±2.5V, RL = 2k

±15V

±5V

●

300

150

300

150

V/mV

VOUT

Output Swing

RL = 10k

RL = 2k

RL = 10k

RL = 2k

±15V

±5V

●

±12.8

±12.6

±2.8

±2.6

V

IOUT

Output Current

VOUT = ±12.5V

VOUT = ±2.5V

±15V

±5V

●

±7

mA

ISC

Short-Circuit Current

VOUT = 0V, VIN = ±0.2V

±15V

●

±12

mA

SR

Slew Rate

RL = 2k (Note 5)

±15V

±5V

●

15

11

V/μs

GBW

Gain Bandwidth

f = 100kHz, RL = 2k

±15V

±5V

●

110

100

200

190

MHz

IS

Supply Current

±15V

±5V

●

7.0

6.8

mA

TYPICAL PERFORMANCE CHARACTERISTICS

Supply Current vs Supply Voltage

and Temperature

Input Common Mode Range

vs Supply Voltage

Input Bias Current

vs Input Common Mode Voltage

SUPPLY VOLTAGE (±V)

0

1

2

3

4

5

6

125°C

25°C

–55°C

7

510

15

20

14682 G01

SUPPLY VOLTAGE (±V)

0

V–

1.0

2.0

–2.0

3

6

912

14682 G02

15

–1.0

0.5

1.5

–1.5

V+

–0.5

18

TA = 25°C

ΔVOS < 100μV

INPUT COMMON MODE VOLTAGE (V)

–15

–20

0

20

0

10

14682 G03

–40

–60

–80

–10

–5

5

40

IB

–

IB

+

60

80

15

VS = ±15V

TA = 25°C

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