LTC6228/LTC6229

8

Rev. B

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SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IOS

Input Offset Current

Bias Cancellation Disabled

l

–0.55

–0.8

0.1

0.55

0.8

μA

μA

Bias Cancellation Enabled

l

–0.9

–1

0.15

0.9

1

μA

μA

∆IOS

Input Offset Current Match (LTC6229)

Bias Cancellation Disabled

l

–1

–1.4

0.15

1

1.4

µA

µA

Bias Cancellation Enabled

l

–1.3

–1.6

0.25

1.3

1.6

µA

µA

en

Input Noise Voltage Spectral Density

f = 1MHz

0.88

nV/√Hz

Integrated 1/f Noise

0.1Hz to 10Hz

0.94

μVP-P

in

Input Current Noise Spectral Density

f = 1MHz Bias Cancellation Disabled

f = 1MHz Bias Cancellation Enabled

3

6.3

pA/√Hz

pA/√Hz

CIN

Input Capacitance

Differential Mode

Common Mode

3.5

1.5

pF

pF

RIN

Input Resistance

Differential Mode

Common Mode

2.6

4

kΩ

MΩ

AVOL

Large Signal Voltage Gain

RL = 1kΩ to Half Supply,

(VOUT = VCM ±1V)

l

118

113

130

dB

dB

RL = 100Ω to Half Supply,

(VOUT = VCM ±1V)

120

dB

CMRR

Common Mode Rejection Ratio

VCM = V– to V+ – 1.2V

l

95

91

110

dB

dB

VCMR

Input Common Mode Range

l

V– – 0.1

V+ – 1.2

V

PSRR+

Positive Power Supply Rejection Ratio

V– = –1V, V+ = 1.8V to 10.75V

l

100

95

110

dB

dB

PSRR–

Negative Power Supply Rejection Ratio

V+ = 1.5V, V– = –1.3V to –10.25V

l

101

99

126

dB

dB

Supply Voltage Range (V+ – V–) (Note 5)

l

2.8

11.75

V

VOL

Output Swing Low (VOUT – V–)

No Load

l

7

10

18

mV

mV

ISINK = 5mA

l

48

74

100

mV

mV

ISINK = 25mA

l

165

320

430

mV

mV

VOH

Output Swing High (VCC – V+)

No Load

l

27

49

59

mV

mV

ISINK = 5mA

l

106

166

213

mV

mV

ISOURCE = 25mA

l

290

520

580

mV

mV

ISC

Output Short-Circuit Current

Sourcing

–67

mA

Sinking

84

mA

IS

Supply Current per Channel

l

16.4

17.6

19

mA

mA

ISD

Disable Supply Current per Channel, Amplifier

Off

VSHDN = V+ – 2.65V

l

260

305

350

μA

μA

The l denotes the specifications which apply

over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 0V,VCM = 1.5V, VSHDN = floating unless

otherwise noted.

ELECTRICAL CHARACTERISTICS (VS = 3V, 0V)