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LTC6404IUD-1#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
LTC6404
1
6404f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
600MHz, Low Noise,
High Precision Fully Differential
Input/Output Amplifi er/Driver
Single-Ended Input to Differential Output
with Common Mode Level Shifting
n
Fully Differential Input and Output
n
Low Noise: 1.5nV/√Hz RTI
n
Very Low Distortion:
LTC6404-1 (2V
P-P
, 10MHz): –91dBc
LTC6404-2 (2V
P-P
, 10MHz): –96dBc
LTC6404-4 (2V
P-P
, 10MHz): –101dBc
n
Closed-Loop –3dB Bandwidth: 600MHz
n
Slew Rate: 1200V/μs (LTC6404-4)
n
Adjustable Output Common Mode Voltage
n
Rail-to-Rail Output Swing
n
Input Range Extends to Ground
n
Large Output Current: 85mA (Typ)
n
DC Voltage Offset < 2mV (Max)
n
Low Power Shutdown
n
Tiny 3mm × 3mm × 0.75mm 16-Pin QFN Package
n
Differential Input A/D Converter Driver
n
Single-Ended to Differential Conversion/Amplifi cation
n
Common Mode Level Translation
n
Low Voltage, Low Noise, Signal Processing
The LTC
®
6404 is a family of AC precision, very low noise,
low distortion, fully differential input/output amplifi ers
optimized for 3V, single supply operation.
The LTC6404-1 is unity-gain stable. The LTC6404-2 is
designed for closed-loop gains greater than or equal to
2V/V. The LTC6404-4 is designed for closed-loop gains
greater than or equal to 4V/V. The LTC6404 closed-loop
bandwidth extends from DC to 600MHz. In addition to the
normal unfi ltered outputs (OUT
+
and OUT
–
), the LTC6404
has a built-in 88.5MHz differential single-pole lowpass
fi lter and an additional pair of fi ltered outputs (OUTF
+
,
OUTF
–
). An input referred voltage noise of 1.5nV/√Hz
make the LTC6404 able to drive state-of-the-art 16-/18-bit
ADCs while operating on the same supply voltage, saving
system cost and power. The LTC6404 is characterized, and
maintains its performance for supplies as low as 2.7V and
can operate on supplies up to 5.25V. It draws only 27.3mA,
and has a hardware shutdown feature which reduces cur-
rent consumption to 250µA.
The LTC6404 family is available in a compact 3mm × 3mm
16-pin leadless QFN package and operates over a –40°C
to 125°C temperature range.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
–
+
402
3V
0.1µF
V
OCM
1.5VDC
1.5VDC
0V
6404 TA01
V
S
1V
P-P
402
100
50
SIGNAL
GENERATOR
71.5
130
0.1µF
1.5VDC
1V
P-P
0.5V
P-P
LTC6404-4 Distortion vs Frequency
FREQUENCY (MHz)
0.1
–100
HD2, HD3 (dBc)
–90
–80
–70
–60
1 10 100
64044 G16
–110
–120
–130
–50
–40
V
CM
= V
OCM
= MID-SUPPLY
V
S
= 3V
V
OUT
= 2V
P-P
R
I
= 100, R
F
= 402
DIFFERENTIAL INPUT
SINGLE-ENDED INPUT
HD2
HD2
HD3
HD3
LTC6404
2
6404f
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (V
+
to V
–
) ................................5.5V
Input Voltage:
IN
+
, IN
–
, V
OCM
, SHDN (Note 2) ...................... V
+
to V
–
Input Current:
IN
+
, IN
–
, V
OCM
, SHDN (Note 2) ........................±10mA
Output Short-Circuit Duration (Note 3) ............ Indefi nite
Output Current (Continuous):
(OUTF
+
, OUTF
–
) DC + AC
RMS
...........................±40mA
Operating Temperature Range (Note 4).. –40°C to 125°C
Specifi ed Temperature Range (Note 5) .. –40°C to 125°C
Junction Temperature ........................................... 150°C
Storage Temperature Range ................... –65°C to 150°C
(Note 1)
16
17
15 14 13
5 6 7 8
TOP VIEW
UD PACKAGE
16-LEAD (3mm s 3mm) PLASTIC QFN
9
10
11
12
4
3
2
1SHDN
V
+
V
–
V
OCM
V
–
V
+
V
+
V
–
NC
IN
+
OUT
–
OUTF
–
NC
IN
–
OUT
+
OUTF
+
T
JMAX
= 150°C, θ
JA
= 68°C/W, θ
JC
= 4.2°C/W
EXPOSED PAD (PIN 17) IS V
–
, MUST BE SOLDERED TO PCB
ORDER INFORMATION
PIN CONFIGURATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LTC6404CUD-1#PBF LTC6404CUD-1#TRPBF LCLW
16-Lead (3mm × 3mm) Plastic QFN
0°C to 70°C
LTC6404IUD-1#PBF LTC6404IUD-1#TRPBF LCLW
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
LTC6404HUD-1#PBF LTC6404HUD-1#TRPBF LCLW
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC6404CUD-2#PBF LTC6404CUD-2#TRPBF LCLX
16-Lead (3mm × 3mm) Plastic QFN
0°C to 70°C
LTC6404IUD-2#PBF LTC6404IUD-2#TRPBF LCLX
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
LTC6404HUD-2#PBF LTC6404HUD-2#TRPBF LCLX
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC6404CUD-4#PBF LTC6404CUD-4#TRPBF LCLY
16-Lead (3mm × 3mm) Plastic QFN
0°C to 70°C
LTC6404IUD-4#PBF LTC6404IUD-4#TRPBF LCLY
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
LTC6404HUD-4#PBF LTC6404HUD-4#TRPBF LCLY
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°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.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
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/
LTC6404
3
6404f
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
CM
= V
OCM
= V
ICM
= Mid-Supply,
V
SHDN
= OPEN, R
L
= OPEN, R
BAL
= 100k (See Figure 1). For the LTC6404-1: R
I
= 100Ω, R
F
= 100Ω. For the LTC6404-2: R
I
= 100Ω,
R
F
= 200Ω. For the LTC6404-4: R
I
= 100Ω, R
F
= 402Ω, unless otherwise noted. V
S
is defi ned (V
+
– V
–
). V
OUTCM
= (V
OUT
+
+ V
OUT
–
)/2.
V
ICM
is defi ned (V
IN
+
+ V
IN
–
)/2. V
OUTDIFF
is defi ned (V
OUT
+
– V
OUT
–
). V
INDIFF
= (V
INP
– V
INM
)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OSDIFF
Differential Offset Voltage (Input Referred) V
S
= 2.7V to 5.25V
l
±0.5 ±2 mV
ΔV
OSDIFF
/ΔT
Differential Offset Voltage Drift (Input Referred) V
S
= 2.7V to 5.25V 1 µV/°C
I
B
Input Bias Current (Note 6) V
S
= 2.7V to 5.25V
l
–60 –23 0 µA
ΔI
B
/ΔT
Input Bias Current Drift (Note 6) V
S
= 2.7V to 5.25V 0.01 µA/°C
I
OS
Input Offset Current (Note 6) V
S
= 2.7V to 5.25V
l
±1 ±10 µA
R
IN
Input Resistance Common Mode
Differential Mode
1000
3
k
k
C
IN
Input Capacitance 1pF
e
n
Differential Input Referred Noise Voltage Density f = 1MHz 1.5 nV/√Hz
i
n
Input Noise Current Density f = 1MHz 3 pA/√Hz
e
nVOCM
Input Referred Common Mode Noise Voltage
Density
f = 1MHz, Referred to V
OCM
Pin
LTC6404-1
LTC6404-2
LTC6404-4
9
10.5
27
nV/√Hz
nV/√Hz
nV/√Hz
V
ICMR
(Note 7)
Input Signal Common Mode Range V
S
= 3V
V
S
= 5V
l
l
0
0
1.6
3.6
V
V
CMRRI
(Note 8)
Input Common Mode Rejection Ratio
(Input Referred) ΔV
ICM
/ΔV
OSDIFF
V
S
= 3V, ΔV
CM
= 0.75V
V
S
= 5V, ΔV
CM
= 1.25V
60
60
dB
dB
CMRRIO
(Note 8)
Output Common Mode Rejection Ratio
(Input Referred) ΔV
OCM
/ΔV
OSDIFF
V
S
= 5V, ΔV
OCM
= 1V
66 dB
PSRR
(Note 9)
Differential Power Supply Rejection
(ΔV
S
/ΔV
OSDIFF
)
V
S
= 2.7V to 5.25V
l
60 94 dB
PSRRCM
(Note 9)
Output Common Mode Power Supply Rejection
(ΔV
S
/ΔV
OSCM
)
V
S
= 2.7V to 5.25V
LTC6404-1
LTC6404-2
LTC6404-4
l
l
l
50
50
40
63
63
51
dB
dB
dB
G
CM
Common Mode Gain (ΔV
OUTCM
/ΔV
OCM
)V
S
= 5V, ΔV
OCM
= 1V
LTC6404-1
LTC6404-2
LTC6404-4
l
l
l
1
1
0.99
V/V
V/V
V/V
Common Mode Gain Error
V
S
= 5V, ΔV
OCM
= 1V
LTC6404-1
LTC6404-2
LTC6404-4
l
l
l
–0.6
–0.6
–1.6
–0.125
–0.25
–1
0.1
0.1
–0.4
%
%
%
BAL
Output Balance (ΔV
OUTCM
/ΔV
OUTDIFF
) ΔV
OUTDIFF
= 2V, Single-Ended Input
LTC6404-1
LTC6404-2
LTC6404-4
l
l
l
–60
–60
–53
–40
–40
–40
dB
dB
dB
ΔV
OUTDIFF
= 2V, Differential Input
LTC6404-1
LTC6404-2
LTC6404-4
l
l
l
–66
–66
–66
–40
–40
–40
dB
dB
dB
V
OSCM
Common Mode Offset Voltage (V
OUTCM
– V
OCM
)V
S
= 2.7V to 5.25V
LTC6404-1
LTC6404-2
LTC6404-4
l
l
l
±10
±20
±40
±25
±50
±100
mV
mV
mV
LTC6404 DC ELECTRICAL CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

LTC6404IUD-1#PBF

Mfr. #:
Buy LTC6404IUD-1#PBF
Manufacturer:
Analog Devices Inc.
Description:
High Speed Operational Amplifiers 600MHz low noise differential ADC driver
Lifecycle:
New from this manufacturer.
Delivery:
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