lt1568 Linear Technology Corporation, lt1568 Datasheet - Page 3

• Manufacturer Part Number: lt1568
• Description: Very Low Noise, High Frequency Active Rc, Filter Building Block
• Manufacturer: Linear Technology Corporation

FILTER ELECTRICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications and typical values are at T
connected to midsupply, R
SYMBOL
I
SR
V
V
V
t
t
SYMBOL
ADC
V
Transfer Function Characteristics for Each Section (A or B) to Single-Ended Output (OUTA or OUTB)
f
Specifications are for the output (OUTA or OUTB) of a single 2nd order section (A or B) with respect to V
gain = –1, R
full operating temperature range, otherwise specifications and typical values are at T
R
B
DIS
EN
TC
C
CM
IL
IH
OS(OUT)
V
L
OS(OUT)
= 400 , unless otherwise noted.
PARAMETER
Op Amp Input Bias Current
Inverter Bandwidth (Note 4)
Inverter Gain (Sections A and B, Note 5)
Inverter Phase Shift (Sections A and B,
Note 5)
Slew Rate (OUTA, OUTB, OUTA,
OUTB) Pins
Common Mode Input Voltage Range
(GNDA and GNDB Pins, Note 6)
Single Supply GND Reference Voltage
EN Input Logic Low Level
EN Input Logic High Level
EN Input Pull-Up Resistor
Disable (Shutdown) Time
Enable (Start-Up) Time
FIL
PARAMETER
DC Gain
DC Offset Voltage
(V
DC Offset Voltage Mismatch
(V
Cutoff Frequency Range (Note 7)
Cutoff Frequency Temperature Coefficient
OUTA
OUTA
= R11 = R21 = R31 = R12 = R22 = R32, (see Block Diagram). The
– V
– V
GNDA
GNDA
) or (V
) – (V
FIL
= R11 = R21 = R31 = R12 = R22 = R32, unless otherwise noted (see Block Diagram).
OUTB
OUTB
– V
– V
GNDB
GNDB
)
)
CONDITIONS
V
V
V
Frequency = DC
Frequency = 2MHz
Frequency = 10MHz
Frequency = DC
Frequency = 2MHz
Frequency = 10MHz
V
V
V
V
V
EN Pin Steps from 0V to V
EN Pin Steps from V
CONDITIONS
V
V
V
V
V
V
S
S
S
S
S
S
S
S
S
S
S
S
S
S
= 3V
= 5V
= 5V
= 3V
= 5V
= 5V, GNDA Tied to GNDB
= 3V, 5V or 5V
= 3V, 5V or 5V
= 3V, f
= 5V, f
= 5V, f
= 3V, f
= 5V, V
= 3V, V
The
C
C
C
S
S
C
= 1MHz, R
= 1MHz, R
= 1MHz, R
= 5V, f
= 5V, V
= 1MHz, R
denotes the specifications which apply over the full operating
S
C
+
= 5V
to 0V
FIL
FIL
FIL
= 1MHz, R
A
FIL
= 25 C. V
= 1.28k
= 1.28k
= 1.28k
+
= 1.28k
FIL
= 1.28k
S
denotes the specifications which apply over the
= single 5V, EN pin to logic “low,” R
A
= 25 C. V
S
= single 5V, EN pin to logic “low,”
V
+
–1.01
–0.2
MIN
MIN
–10
–12
–10
30
0.2
–5
–8
– 0.6
GND
= V
–3.4 to 2.7
1 to 1.9
–0.2
0.01
0.01
0.27
GNDA
TYP
–4.0
180
179
176
100
TYP
2.5
55
53
40
20
–1
0.5
0.4
2.6
0.6
1
4
4
= V
V
LT1568
GNDB
–0.99
+
MAX
MAX
L
0.2
15
10
10
10
– 2.1
2
2
2
4
8
= 400 ,
,
ppm/ C
UNITS
UNITS
3
MHz
DEG
DEG
DEG
V/ s
MHz
1568f
V/V
mV
mV
mV
mV
mV
k
dB
dB
dB
A
A
A
V
V
V
V
V
s
s