LT6211CDD datasheet(6/16 Pages) LINER

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LT6210/LT6211

62101f

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

CMRR

Common Mode Rejection Ratio VIN = V

+ – 1.2V to V– + 1.2V

–ICMRR

Inverting Input Current

VIN = V+ – 1.2V to V– + 1.2V

0.15

±1.5

0.2

µA/V

Common Mode Rejection

±2

µA/V

PSRR

Power Supply Rejection Ratio

VS = ±1.5V to ±6V (Note 6)

–IPSRR

Inverting Input Current

VS = ±1.5V to ±6V (Note 6)

0.4

±2.2

0.4

±2.2

µA/V

Power Supply Rejection

±4

µA/V

Supply Current per Amplifier

0.3

0.525

0.3

0.38

0.6

0.43

IOUT

Maximum Output Current

RL = 0Ω

±30

±10

(Notes 7, 11)

ROL

Transimpedance,

∆VOUT/∆IIN–VOUT = V+ – 1.2V to V– + 1.2V

300

660

120

Ω

Slew Rate

(Note 8)

120

170

µs

tpd

Propagation Delay

50% VIN to 50% VOUT,30

100mVP-P, Larger of tpd+, tpd–

–3dB Bandwidth

<1dB Peaking, AV = 1

7.5

MHz

Settling Time

To 0.1% of VFINAL, VSTEP = 2V

200

300

tf, tr

Small-Signal Rise and Fall Time 10% to 90%, VOUT = 100mVP-P

HD2

2nd Harmonic Distortion

f = 1MHz, VOUT = 2VP-P

–40

–45

dBc

HD3

3rd Harmonic Distortion

f = 1MHz, VOUT = 2VP-P

–45

dBc

(IS = 300µA per Amplifier) The q denotes specifications which

apply over the specified operating temperature range, otherwise specifications are at TA = 25°C. For V+ = 5V, V– = – 5V: RSET = 1M to

ground, AV = +2, RF = RG = 11k, RL = 1k; For V+ = 3V, V– = 0V: RSET = 270k to V–, AV = +2, RF = 9.31k, RG = 9.31k to 1.5V, RL = 1k to

1.5V unless otherwise specified.

V+ = 5V, V– = –5V, IS = 300µA V+ = 3V, V– = 0V, IS = 300µA

ELECTRICAL CHARACTERISTICS

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

of a device may be impaired.

Note 2: As long as output current and junction temperature are kept below

the absolute maximum ratings, no damage to the part will occur.

Depending on the supply voltage, a heat sink may be required.

Note 3: The LT6210C/LT6211C is guaranteed functional over the operating

temperature range of –40

°C to 85°C.

Note 4: The LT6210C/LT6211C is guaranteed to meet specified perfor-

mance from 0

°C to 70°C. The LT6210C/LT6211C is designed, character-

ized and expected to meet specified performance from –40

°C and 85°C

but is not tested or QA sampled at these temperatures. The LT6210I/

LT6211I is guaranteed to meet specified performance from –40

°C to 85°C.

Note 5: The LT6210 with no metal connected to the V– pin has a

θJA of

230

°C/W, however, thermal resistances vary depending upon the amount

of PC board metal attached to Pin 2 of the device. With the LT6210

mounted on a 2500mm2 3/32" FR-4 board covered with 2oz copper on

both sides and with just 20mm2 of copper attached to Pin 2,

θJA drops to

160

°C/W. Thermal performance can be improved even further by using a

4-layer board or by attaching more metal area to Pin 2.

Thermal resistance of the LT6211 in MSOP-10 is specified for a 2500mm2

3/32" FR-4 board covered with 2oz copper on both sides and with 100mm2

of copper attached to Pin 5. Its performance can also be increased with

additional copper much like the LT6210.

To achieve the specified

θJA of 43°C/W for the LT6211 DFN-10, the

exposed pad must be soldered to the PCB. In this package,

θJA will benefit

from increased copper area attached to the exposed pad.

TJ is calculated from the ambient temperature TA and the power dissipa-

tion PD according to the following formula:

TJ = TA + (PD • θJA)

The maximum power dissipation can be calculated by:

PD(MAX) = (VS • IS(MAX)) + (VS/2)2/RLOAD

Note 6: For PSRR and –IPSRR testing, the current into the ISET pin is

constant, maintaining a consistent LT6210/LT6211 quiescent bias point. A

graph of PSRR vs Frequency is included in the Typical Performance

Characteristics showing +PSRR and –PSRR with RSET connecting ISET to

ground.

Note 7: While the LT6210 and LT6211 circuitry is capable of significant

output current even beyond the levels specified, sustained short-circuit

current exceeding the Absolute Maximum Rating of

±80mA may

permanently damage the device.

Note 8: This parameter is guaranteed to meet specified performance

through design and characterization. It is not production tested.

Note 9: Differential gain and phase are measured using a Tektronix

TSG120YC/NTSC signal generator and a Tektronix 1780R Video Measure-

ment Set. The resolution of this equipment is 0.1% and 0.1

°. Five identical

amplifier stages were cascaded giving an effective resolution of 0.02% and

0.02

°.

Note 10: Input voltage range on

±5V dual supplies is guaranteed by

CMRR. On 3V single supply it is guaranteed by design and by correlation

to the

±5V input voltage range limits.

Note 11: This parameter is tested by forcing a 50mV differential voltage

between the inverting and noninverting inputs.

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