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LTC6601IUF-1#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P40
LTC6601-1
1
66011f
FEATURES
APPLICATIONS
DESCRIPTION
Low Noise, 0.5% Tolerance,
5MHz to 28MHz, Pin Confi gurable
Filter/ADC Driver
The LTC
®
6601-1 is a very easy-to-use fully differential
2nd order active RC fi lter and driver. On-chip resistors,
capacitors, and amplifi er bandwidth are trimmed to provide
consistent and repeatable fi lter characteristics.
The fi lter characteristics are pin-strap confi gurable. Cutoff
frequencies range from 5MHz to 28MHz. Gain is pin-strap
programmable between –17dB and +17dB.
A three-state BIAS pin is provided to adjust amplifi er
power consumption. Select between high performance,
low power (50% power reduction), and standby modes
with the BIAS pin.
The LTC6601-1 is available in a compact 4mm × 4mm
16-pin leadless QFN package.
19MHz, 2nd Order Lowpass Filter. Gain = 6dB
n
Pin Confi gurable Gain and Filter Response
Up to 28MHz
n
Few External Components Required
n
Resistors Trimmed to 0.5% Typical
n
Capacitors Trimmed to 0.5% Typical
n
Very Low Noise: 80dB S/N in 100MHz Bandwidth
n
Very Low Distortion (2V
P-P
):
1MHz: –100dBc 2nd, –123dBc 3rd
10MHz: –72dBc 2nd, –103dBc 3rd
n
Adjustable Output Common Mode Voltage
n
Rail-to-Rail Output Swing
n
Power Confi gurability and Low Power Shutdown
n
Tiny 0.75mm 20-Lead (4mm × 4mm) QFN Package
n
Differential Input A/D Converter Driver
n
Antialiasing/Reconstruction Filter
n
Single-Ended to Differential Conversion/Amplifi cation
n
Low Voltage, Low Noise, Differential Signal
Processing
n
Common Mode Voltage Translation
Frequency Response
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6271719.
TYPICAL APPLICATION
20 19 18 17 16
1
2
3
4
5
6 7 8 9 10
LTC6601-1
V
IN
3V
0.1µF
66011 TA01a
15
14
13
12
–
+
11
0.1µF
–
+
V
OUT
–
+
3V
FREQUENCY (MHz)
GAIN (dB)
66011 TA01b
10
–10
–15
–20
–25
–5
0
5
–30
1 10 100
LTC6601-1
2
66011f
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (V
+
to V
–
) ...............................5.5V
Input Voltage (Any Pin) (Note 2) ..V
+
+ 0.3V to V
–
–0.3V
Input Current (V
OCM
, BIAS) ..................................±10mA
Input Current (Pins 1, 5) (Note 2) ........................±20mA
Input Current (Pins 2, 4) (Note 2) ........................±30mA
Input Current (Pins 6, 20) (Note 2) ......................±15mA
Input Current (Pins 7, 8, 9, 10, 16, 17, 18, 19)
(Note 2) ................................................................±10mA
Output Short-Circuit Duration (Note 3) ............ Indefi nite
Operating Temperature Range (Note 4)....–40°C to 85°C
Specifi ed Temperature Range (Note 5) ....–40°C to 85°C
Junction Temperature ...........................................150°C
Storage Temperature Range ...................–65°C to 150°C
(Note 1)
20 19 18 17 16
6 7 8
TOP VIEW
21
UF PACKAGE
20-LEAD (4mm s 4mm) PLASTIC QFN
9 10
5
4
3
2
1
11
12
13
14
15
IN2
+
IN1
+
BIAS
IN1
–
IN2
–
OUT
–
V
+
V
–
V
OCM
OUT
+
IN4
+
C5
C6
C7
C8
IN4
–
C1
C2
C3
C4
T
JMAX
= 150°C, θ
JA
= 37°C/W, θ
JC
= 2°C/W
EXPOSED PAD (PIN 21) IS V
–
, MUST BE SOLDERED TO PCB
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC6601CUF-1#PBF
LTC6601IUF-1#PBF
LTC6601CUF-1#TRPBF
LTC6601IUF-1#TRPBF
66011
66011
20-Lead (4mm × 4mm) Plastic QFN
20-Lead (4mm × 4mm) Plastic QFN
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ORDER INFORMATION
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OSDIFF
(Note 6) Amplifi er Differential Offset Voltage (Input
Referred)
V
S
= 2.7V to 5.25V, BIAS = V
+
BIAS = Floating
l
l
±0.25
±0.25
±1
±1.5
mV
mV
ΔV
OSDIFF
/ΔT
(Note 6)
Ampifi er Differential Offset Voltage Drift
(Input Referred)
V
S
= 2.7V to 5.25V 1 µV/°C
R
IN
(Note 14) Input Resistance, BIAS = V
+
Single Ended Input Resistance, Pin 2 or Pin 4
Differential Input Resistance
V
S
= 3V
V
S
= 3V
133
200
DC 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
+
= 3V, V
–
= 0V, V
INCM
= V
OCM
= mid-supply, BIAS tied to V
+
or fl oating,
I
LOAD
= 0, R
BAL
= 100k. The fi lter is confi gured for a gain of 1 unless otherwise noted. V
S
is defi ned as (V
+
– V
–
). V
OUTCM
is defi ned as
(V
OUT
+
+ V
OUT
–
)/2. V
INCM
is defi ned as (V
INP
+ V
INM
)/2. V
OUTDIFF
is defi ned as (V
OUT
+
– V
OUT
–
). V
INDIFF
is defi ned as (V
INP
– V
INM
). See
Figure 1.
LTC6601-1
3
66011f
DC 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
+
= 3V, V
–
= 0V, V
INCM
= V
OCM
= mid-supply, BIAS tied to V
+
or fl oating,
I
LOAD
= 0, R
BAL
= 100k. The fi lter is confi gured for a gain of 1 unless otherwise noted. V
S
is defi ned as (V
+
– V
–
). V
OUTCM
is defi ned as
(V
OUT
+
+ V
OUT
–
)/2. V
INCM
is defi ned as (V
INP
+ V
INM
)/2. V
OUTDIFF
is defi ned as (V
OUT
+
– V
OUT
–
). V
INDIFF
is defi ned as (V
INP
– V
INM
). See
Figure 1.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
ΔR
IN
(Note 14)
Input Resistance Match, BIAS = V
+
Single Ended Input Resistance, Pin 2 or Pin 4 V
S
= 3V
l
±0.25
I
B
(Note 7) Internal Amplifi er Input Bias V
S
= 2.7V to 5V BIAS = V
+
BIAS = Floating
l
l
–50
–25
–25
–12.5
0
0
µA
µA
I
OS
(Note 7) Internal Amplifi er Input Offset V
S
= 2.7V to 5V BIAS = V
+
BIAS = Floating
l
l
±1
±1
±10
±5
µA
µA
V
INCM
(Note 8) Input Signal Common Mode Range
(V
INP
+ V
INM
)/2
BIAS = V
+
, V
OCM
= 1.5V
BIAS = V
+
, V
OCM
= 2.5V
V
S
= 3V
V
S
= 5V
l
l
0
0
1.7
4.7
V
V
BIAS Pin Floating, V
OCM
= 1.5V
BIAS Pin Floating, V
OCM
= 2.5V
V
S
= 3V
V
S
= 5V
l
l
0
0
1.8
4.8
V
V
CMRRI
(Notes 9, 14)
Input Common Mode Rejection Ratio
(Amplifi er Input Referred) ΔV
INCM
/ΔV
OSDIFF
ΔV
INCM
= 2.5V V
S
= 5V 74 dB
CMRRO
(Notes 9, 14)
Output Common Mode Rejection Ratio
(Amplifi er Input Referred) ΔV
OCM
/ΔV
OSDIFF
ΔV
OCM
= 1V V
S
= 5V 70 dB
PSRR (Note 10) Power Supply Rejection Ratio
(Amplifi er Input Referred) ΔV
S
/ΔV
OSDIFF
BIAS = V
+
BIAS Pin Floating
V
S
= 2.7V to 5V
V
S
= 2.7V to 5V
l
l
66
60
95
95
dB
dB
PSRRCM (Note 10) Common Mode Power Supply Rejection Ratio
(ΔV
S
/ΔV
OSCM
)V
S
= 2.7V to 5V
l
46 60 dB
g
cm
Common Mode Gain (ΔV
OUTCM
/ΔV
OCM
)
ΔV
OCM
= 2V
V
S
= 5V 1 V/V
Common Mode Gain Error = 100 • (g
cm
– 1)
ΔV
OCM
= 2V V
S
= 5V
l
±0.1 ±0.3 %
BAL
Output Balance (ΔV
OUTCM
/ΔV
OUTDIFF
)
Single-Ended Input
Differential Input
ΔV
OUTDIFF
= 2V
V
S
= 5V
V
S
= 5V
l
l
–62
–63
–40
–40
dB
dB
V
OSCM
Common Mode Offset Voltage
(V
OUTCM
– V
OCM
)
V
S
= 2.7V to 5V BIAS = V
+
V
S
= 2.7V to 5V BIAS = Floating
l
l
±5
±8
±15
±20
mV
mV
ΔV
OSCM
/ΔT
Common Mode Offset Voltage Drift
(V
OUTCM
– V
OCM
)
V
S
= 2.7V to 5V BIAS = V
+
V
S
= 2.7V to 5V BIAS = Floating
l
l
5
20
µV/°C
µV/°C
V
OUTCMR
(Note 8) Output Signal Common Mode Range
(Voltage Range for the V
OCM
Pin) V
S
= 3V BIAS = V
+
V
S
= 5V BIAS = V
+
V
S
= 3V BIAS Pin Floating
V
S
= 5V BIAS Pin Floating
l
l
l
l
1.1
1.1
1.1
1.1
1.7
4
1.8
4
V
V
V
V
R
INVOCM
Input Resistance, V
OCM
Pin V
S
= 3V
l
12.5 18 23.5 kΩ
V
MID
Voltage at the V
OCM
PIn V
S
= 3V
l
1.475 1.5 1.525 V
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LTC6601IUF-1#TRPBF

Mfr. #:
Buy LTC6601IUF-1#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Differential Amplifiers Low Noise, 0.5% Tolerance, Pin Configurable Filter/Amplifier
Lifecycle:
New from this manufacturer.
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