LTC6255/LTC6256/LTC6257

Rev E

5

For more information www.analog.com

1.8V ELECTRICAL CHARACTERISTICS The

l

denotes the specifications which apply over the full

operating temperature range, otherwise specifications are at TA = 25°C. VSUPPLY = 1.8V, VCM = VOUT = 0.4V, CL = 10pF, VSHDN is

unconnected.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VOS

Input Offset Voltage

VCM = V– + 0.3V

l

–350

–700

100

350

700

µV

µV

VCM = V+ – 0.3V

l

–350

–700

100

350

700

µV

µV

VOS TC

Input Offset Voltage Drift

VCM = V– + 0.3V, V+ – 0.3V

l

1.5

µV/°C

IB

Input Bias Current (Note 7)

VCM = V– + 0.3V

l

–50

–75

–8

50

75

nA

nA

VCM = V+ – 0.3V

l

–50

–75

5

50

75

nA

nA

IOS

Input Offset Current

VCM = V– + 0.3V

l

–20

–35

2

20

35

nA

nA

VCM = V+ – 0.3V

l

–20

–35

2

20

35

nA

nA

en

Input Voltage Noise Density

f = 1kHz, VCM = 0.4V

21

nV/√Hz

Input Noise Voltage

f = 0.1Hz to 10Hz

2.5

µVP-P

in

Input Current Noise Density

f = 1kHz, VCM = 0V to 0.8V (PNP Input)

f = 1kHz, VCM = 1V to 1.8V (NPN Input)

580

870

fA/√Hz

fA/√Hz

RIN

Input Resistance

Differential

Common Mode

1

10

MΩ

MΩ

CIN

Input Capacitance

Differential

Common Mode

0.4

0.3

pF

pF

CMRR

Common Mode Rejection Ratio

VCM = 0.2V to 1.6V

l

74

67

90

dB

dB

IVR

Input Voltage Range

l

–0.1

1.9

V

PSRR

Power Supply Rejection Ratio

VCM = 0.4V, VS Ranges from 1.8V to 5V

l

82

78

100

dB

dB

AV

Large Signal Gain

VOUT = 0.5V to 1.3V, RLOAD = 100k

l

30

17

110

V/mV

V/mV

VOUT = 0.5V to 1.3V, RLOAD = 10k

l

15

5

50

V/mV

V/mV

VOL

Output Swing Low (Input Overdrive 30mV),

Measured from V–

No Load

l

6

35

40

mV

mV

ISINK = 100µA

l

10

40

45

mV

mV

ISINK = 1mA

l

30

75

90

mV

mV