LT1969 datasheet(4/20 Pages) LINER

No de pièce	LT1969

Description	Dual 700MHz, 200mA, Adjustable Current Operational Amplifier

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Fabricant	LINER [Linear Technology]

Site Internet	http://www.linear.com

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LT1969

ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating temp-

erature range, otherwise specifications are at TA = 25°C. VS = ±2.5V, VCM = 0V, nominal mode with a 13k resistor from CTRL1 to V–

and a 49.9k resistor from CTRL2 to V –, pulse power tested unless otherwise noted. (Note 9)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The inputs are protected by back-to-back diodes. If the differential

input voltage exceeds 0.7V, the input current should be limited to less than

10mA.

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

below absolute maximum.

Note 4: Thermal resistance varies depending upon the amount of PC board

metal attached to the device.

θJA is specified for a 2500mm2 test board

covered with 2 oz copper on both sides.

Note 5: Input offset voltage is exclusive of warm-up drift.

Note 6: Slew rate is measured between

±2V on a ±4V output with ±6V

supplies, and between

±1V on a ±1.5V output with ±2.5V supplies. Falling

slew rate is guaranteed by correlation to rising slew rate.

Note 7: Full power bandwidth is calculated from the slew rate:

FPBW = SR/2

πVP.

Note 8: This parameter is not 100% tested.

Note 9: The LT1969C is guaranteed to meet specified performance from 0

°C

to 70

°C. The LT1969C is designed, characterized and expected to meet

specified performance from –40

°C to 85°C but is not tested or QA sampled

at these temperatures.

Note 10: The LT1969C is guaranteed functional over the operating temperature

range of –40

°C to 85°C.

AVOL

Large-Signal Voltage Gain

VOUT = ±1V, RL = 100Ω

5.0

10

V/mV

q

4.5

V/mV

VOUT = ±1V, RL = 25Ω

4.5

10

V/mV

q

4.0

V/mV

VOUT

Output Swing

RL = 100Ω, 10mV Overdrive

1.50

1.65

±V

q

1.40

±V

RL = 25Ω, 10mV Overdrive

1.35

1.50

±V

q

1.25

±V

IOUT = 200mA, 10mV Overdrive

0.87

1

±V

q

0.80

±V

ISC

Short-Circuit Current (Sourcing)

(Note 3)

500

mA

Short-Circuit Current (Sinking)

400

mA

SR

Slew Rate

AV = –10 (Note 6)

50

100

V/

µs

Full Power Bandwidth

1V Peak (Note 7)

16

MHz

GBW

Gain Bandwidth

f = 1MHz

530

MHz

tr, tf

Rise Time, Fall Time

AV = 10, 10% to 90% of 0.1V, RL = 100Ω

7ns

Overshoot

AV = 10, 0.1V, RL = 100Ω

5%

Propagation Delay

AV = 10, 50% VIN to 50% VOUT, 0.1V, RL = 100Ω

5ns

Harmonic Distortion

HD2, AV = 10, 2VP-P, f = 1MHz, RL = 100Ω/25Ω

–75/– 64

dBc

HD3, AV = 10, 2VP-P, f = 1MHz, RL = 100Ω/25Ω

– 80/– 66

dBc

IMD

Intermodulation Distortion

AV = 10, f = 0.9MHz, 1MHz, 5dBm, RL = 100Ω/25Ω

– 77/– 85

dBc

ROUT

Output Resistance

AV = 10, f = 1MHz

0.2

Ω

Channel Separation

VOUT = ±1V, RL = 25Ω

82

92

dB

q

80

dB

IS

Supply Current

Per Amplifier

5

6.00

mA

q

6.25

mA

CTRL1 Voltage

13k to V –, Measured with Respect to V–

0.77

0.95

1.25

V

q

0.74

1.30

V

CTRL2 Voltage

49.9k to V –, Measured with Respect to V–

0.87

1.03

1.18

V

q

0.80

1.25

V

Minimum Supply Current

per Amplifier; CTRL1, CTRL2 Open

250

650

µA

q

750

µA

Maximum Supply Current

per Amplifier; CTRL1 or CTRL2 Shorted to V –

11.5

mA

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