Datasheet

LTC6603
4
6603fa
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V+
A
= V+
D
= V+
IN
= 3V, V
ICM
= V
OCM
= 1.5V, Gain = 0dB, lowpass
cutoff = 2.5MHz, internal clocking with R
BIAS
= 30.9k unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Differential Input Referred Differential Offset Voltage at Either Output
Lowest Cutoff Frequency, Gain Setting = 24dB
Highest Cutoff Frequency, Gain Setting = 24dB
Lowest Cutoff Frequency, Gain Setting = 0dB
Highest Cutoff Frequency, Gain Setting = 0dB
l
l
l
l
±8
±14
±40
±60
mV
mV
mV
mV
CMRR Differential f
C
= 625kHz
Common Mode Input from 0V to 3V, V+
IN
= 3V
Common Mode Input from 0V to 5V, V+
IN
= 5V
l
l
60
60
90
90
dB
dB
V
OCM
Pin Voltage V+
A
= V+
D
= 3V, Pin 3 Open, f
C
= 156.25kHz
l
1.3 1.45 1.5 V
V
OCM
Pin Input
Impedance
V+
A
= V+
D
= 3V, Pin 3 Open, f
C
= 156.25kHz
l
2.5 3.4 4.5 k
V
OSCM
Common Mode Offset Voltage, V
OCM
= 1.5V, Supplies = 3V
V
OSCM
= V
OUT-CM
– V
OCM
l
100 185 mV
Output Swing f
C
= 156.25kHz
Source 1mA, Relative to V+
A
Sink 1mA, Relative to GND
l
l
200
150
500
400
mV
mV
Short-Circuit Current f
C
= 156.25kHz
Sourcing
Sinking
l
l
7
11
25
30
mA
mA
Supply Current Internal Clock (R
BIAS
= 30.9k); Sum of the Currents into V+
D
, V+
A
, and V+
IN
All
Supplies Set to 3V
f
C
= 156.25kHz
f
C
= 625kHz
f
C
= 2.5MHz
l
l
l
88
121
162
96
130
175
mA
mA
mA
Supply Current,
Shutdown Mode
Sum of the Currents into V+
D
, V+
A
, and V+
IN
; All Supplies Set to 3V
Shutdown Via Serial Interface
l
170 235 µA
Supply Voltage V+
D
, V+
A
Relative to GND
V+
IN
Relative to GND
l
l
2.7
2.7
3.6
5.5
V
V
PSRR V+
D
= V+
A
= V+
IN
, All from 2.7V to 3.6V
V+
D
= V+
A
= 3V, V+
IN
from 4.5V to 5.5V
l
l
40
65
50
85
dB
dB
R
BIAS
Resistor Range CLKCNTL = 3V
Clock Frequency Error < ±3.5%
Clock Frequency Error < ±3%
l
l
30.9
54.9
54.9
200
k
k
R
BIAS
Pin Voltage 30.9k < R
BIAS
< 200k 1.17 V
Clock Frequency Drift
Over Temperature
R
BIAS
= 30.9k
CLKCNTL Pin Open
40 ppm/ºC
Clock Frequency Drift
Over Supply
V+
A
, V+
D
from 2.7V to 3.6V, R
BIAS
= 30.9k
CLKCNTL Pin Open
l
0.2 0.5 %/V
Output Clock Duty
Cycle
R
BIAS
= 30.9k
l
45 50 55 %
CLKIO Pin High Level
Input Voltage
CLKCNTL = 0V (Note 5)
l
V+
D
– 0.3 V
CLKIO Pin Low Level
Input Voltage
CLKCNTL = 0V (Note 5)
l
0.3 V
CLKIO Pin Input
Current
CLKCNTL = 0V
CLKIO = 0V (Note 6)
CLKIO = V+
D
l
l
–1
10
µA
µA
CLKIO Pin High Level
Output Voltage
V+
A
= V+
D
= 3V, CLKCNTL = 3V
I
OH
= –1mA
I
OH
= –4mA
2.95
2.9
V
V