LTC6601-2

3

66012f

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

temperature range, otherwise specifications are at TA = 25°C. V+ = 3V, V– = 0V, VINCM = VOCM = mid-supply, BIAS tied to V+ or floating,

ILOAD = 0, RBAL = 100k. The filter is configured for a gain of 1 unless otherwise noted. VS is defined as (V+ – V–). VOUTCM is defined as

(VOUT+ + VOUT–)/2. VINCM is defined as (VINP + VINM)/2. VOUTDIFF is defined as (VOUT+ – VOUT–). VINDIFF is defined as (VINP – VINM). See

Figure 1.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ΔRIN (Note 14)

Input Resistance Match, BIAS = V+

Single Ended Input Resistance, Pin 2 or Pin 4 VS = 3V

l

±0.25

Ω

IB (Note 7)

Internal Amplifier Input Bias

VS = 2.7V to 5V

BIAS = Floating

BIAS = V+

l

l

–25

–50

–12.5

–25

0

0

μA

μA

IOS (Note 7)

Internal Amplifier Input Offset

VS = 2.7V to 5V

BIAS = Floating

BIAS = V+

l

l

±1

±1

±5

±10

μA

μA

VINCM (Note 8)

Input Signal Common Mode Range

(VINP + VINM)/2

BIAS = V+, VOCM = 2.5V

BIAS = V+, VOCM = 1.5V

VS = 5V

VS = 3V

l

l

0

0

4.7

1.7

V

V

BIAS Pin Floating, VOCM = 2.5V

BIAS Pin Floating, VOCM = 1.5V

VS = 5V

VS = 3V

l

l

0

0

4.8

1.8

V

V

CMRRI

(Notes 9, 14)

Input Common Mode Rejection Ratio

(Amplifier Input Referred)

ΔVINCM/ΔVOSDIFF

ΔVINCM = 2.5V

VS = 5V

74

dB

CMRRO

(Notes 9, 14)

Output Common Mode Rejection Ratio

(Amplifier Input Referred)

ΔVOCM/ΔVOSDIFF

ΔVOCM = 1V

VS = 5V

70

dB

PSRR (Note 10)

Power Supply Rejection Ratio

(Amplifier Input Referred)

ΔVS/ΔVOSDIFF

BIAS Pin Floating

BIAS = V+

VS = 2.7V to 5V

VS = 2.7V to 5V

l

l

58

58

94

81

dB

dB

PSRRCM (Note 10) Common Mode Power Supply Rejection Ratio

(

ΔVS/ΔVOSCM)VS = 2.7V to 5V

l

40

51

dB

gcm

Common Mode Gain (

ΔVOUTCM/ΔVOCM)

ΔVOCM = 2V

VS = 5V

1

V/V

Common Mode Gain Error = 100 • (gcm – 1)

ΔVOCM = 2V

VS = 5V

l

±0.3

±1.0

%

BAL

Output Balance (

ΔVOUTCM/ΔVOUTDIFF)

Single-Ended Input

Differential Input

ΔVOUTDIFF = 2V

VS = 5V

VS = 5V

l

l

–58

–62

–40

–40

dB

dB

VOSCM

Common Mode Offset Voltage

(VOUTCM – VOCM)

VS = 2.7V to 5V

BIAS = Floating

VS = 2.7V to 5V

BIAS = V+

l

l

±15

±15

±30

±30

mV

mV

ΔVOSCM/ΔT

Common Mode Offset Voltage Drift

(VOUTCM – VOCM)

VS = 2.7V to 5V

BIAS = Floating

VS = 2.7V to 5V

BIAS = V+

l

l

20

20

μV/°C

μV/°C

VOUTCMR (Note 8)

Output Signal Common Mode Range

(Voltage Range for the VOCM Pin)

VS = 3V

BIAS Pin Floating

VS = 5V

BIAS Pin Floating

VS = 3V

BIAS = V+

VS = 5V

BIAS = V+

l

l

l

l

1.1

1.1

1.1

1.1

1.8

4

1.7

4

V

V

V

V

RINVOCM

Input Resistance, VOCM Pin

VS = 3V

l

579

kΩ

VMID

Voltage at the VOCM PIn

VS = 3V

l

1.475

1.5

1.525

V