LTC6404IUD-2#PBF Linear Technology, LTC6404IUD-2#PBF Datasheet

IC AMP/DRIVER DIFF 16-QFN

LTC6404IUD-2#PBF

Manufacturer Part Number
LTC6404IUD-2#PBF
Description
IC AMP/DRIVER DIFF 16-QFN
Manufacturer
Linear Technology
Type
ADC Driverr
Datasheets

Specifications of LTC6404IUD-2#PBF

Applications
Data Acquisition
Mounting Type
Surface Mount
Package / Case
16-WQFN Exposed Pad
Current - Supply
30.4mA
Operating Temperature
-40°C ~ 85°C
Output Type
Differential, Rail-to-Rail
Number Of Circuits
1
Current - Output / Channel
85mA
Amplifier Type
Differential
Voltage - Supply, Single/dual (±)
2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V
-3db Bandwidth
600MHz
Slew Rate
700 V/µs
Gain Bandwidth Product
900MHz
Current - Input Bias
23µA
Voltage - Input Offset
500µV
Number Of Channels
1
Number Of Elements
1
Power Supply Requirement
Single
Common Mode Rejection Ratio
60dB
Voltage Gain Db
90dB
Unity Gain Bandwidth Product (typ)
900MHz
Input Resistance
1@3V@-40C TO 85CMohm
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Rejection Ratio
60dB
Rail/rail I/o Type
Rail to Rail Output
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.25V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
16
Package Type
QFN EP
No. Of Amplifiers
1
Input Offset Voltage
2mV
Gain Db Max
2dB
Bandwidth
900MHz
Supply Voltage Range
2.7V To 5.25V
Supply Current
30.4mA
Amplifier Case Style
QFN
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC6404IUD-2#PBFLTC6404IUD-2
Manufacturer:
LT
Quantity:
10 000
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
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n
n
n
TYPICAL APPLICATION
Fully Differential Input and Output
Low Noise: 1.5nV/√Hz Input-Referred
Very Low Distortion (2V
Closed loop –3dB Bandwidth: 600MHz
Slew Rate: 700V/μs
Adjustable Output Common Mode Voltage
Rail-to-Rail Output Swing
Input Range Extends to Ground
High Output Current: 65mA (Typ)
2.7V to 5.25V Supply Voltage Range
Low Power Shutdown
Tiny 3mm × 3mm × 0.75mm 16-Pin QFN Package
Differential Input A/D Converter Driver
Single-Ended to Differential Conversion/Amplifi cation
Common Mode Level Translation
Low Voltage, Low Noise, Signal Processing
Single-Ended Input to Differential Output with Common Mode Level Shifting
P-P
, 10MHz): –96dBc
GENERATOR
SIGNAL
V
S
50Ω
0V
1V
0.1μF
P-P
75Ω
100Ω
130Ω
Input/Output Amplifi er/Driver
1.5V
AC Precision Fully Differential
DESCRIPTION
The LTC
distortion, fully differential input/output amplifi er optimized
for 3V, single supply operation. The LTC6404-2 is stable
for gains exceeding 2V/V and has a closed-loop band-
width extending from DC to 600MHz. A unity-gain stable
LTC6404-1 is also available. In addition to the normal
unfi ltered outputs (OUT
built-in 88.5MHz differential single-pole lowpass fi lter and
an additional pair of fi ltered outputs (OUTF
An input referred voltage noise of 1.5nV/√Hz makes the
LTC6404-2 uniquely able to drive state-of-the-art 14- to
18-bit ADCs while operating on the same supply voltage,
saving system cost and power. The LTC6404-2 is character-
ized, and maintains its performance for supplies as low as
2.7V. It draws only 29.8mA, and has a hardware shutdown
feature which reduces current consumption to 250μA.
The LTC6404-2 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.
+
V
OCM
3V
0.1μF
®
200Ω
200Ω
6404-2 is an AC precision, very low noise, low
64042 TA01
600MHz, Low Noise,
1V
1V
P-P
P-P
1.5V
1.5V
+
and OUT
), the LTC6404-2 has a
LTC6404-2
+
, and OUTF
64042f
1
).

Related parts for LTC6404IUD-2#PBF

LTC6404IUD-2#PBF Summary of contents

Page 1

... The LTC6404-2 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. 1V P-P ...

Page 2

... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC6404CUD-2#PBF LTC6404CUD-2#TRPBF LTC6404IUD-2#PBF LTC6404IUD-2#TRPBF LTC6404HUD-2#PBF LTC6404HUD-2#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...

Page 3

LTC6404-2 DC ELECTRICAL CHARACTERISTICS over the full operating temperature range, otherwise specifi cations are OPEN 100Ω 200Ω, R SHDN – )/ defi ...

Page 4

LTC6404-2 LTC6404-2 DC ELECTRICAL CHARACTERISTICS over the full operating temperature range, otherwise specifi cations are OPEN 100Ω 200Ω, R SHDN – )/ ...

Page 5

LTC6404-2 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. + – Note 2: ...

Page 6

LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS Active Supply Current vs Temperature MID-SUPPLY CM OCM 32 2. 27.5 25 –75 –50 – ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS Small Signal Frequency Response vs Gain Setting Resistor Values 100Ω 200Ω 200Ω 400Ω 499Ω 1kΩ ...

Page 8

LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Output Amplitude – MID-SUPPLY CM OCM – 100Ω 200Ω SINGLE-ENDED INPUT IN – 10MHz IN –70 ...

Page 9

PIN FUNCTIONS pin has an input resistance of approximately 14k to a mid-supply potential. The V pin should be bypassed OCM with a high quality ceramic bypass capacitor of at least 0.01μF , (with symmetrical split supplies, connect directly to ...

Page 10

LTC6404-2 APPLICATIONS INFORMATION + V INP – SHDN V SHDN 0.1μ – OCM 0.01μ INM – 0.01μF MINI-CIRCUITS TCM4-19 50Ω V SHDN + + V ...

Page 11

APPLICATIONS INFORMATION Functional Description The LTC6404 small outline, wide band, low noise, and low distortion fully-differential amplifi er with accurate output phase balancing. The LTC6404-2 is optimized to drive low voltage, single-supply, differential input analog- to-digital converters (ADCs). ...

Page 12

LTC6404-2 APPLICATIONS INFORMATION appear as open collectors with a non-linear capacitor in parallel and steering diodes to either supply. Because of the non-linear capacitance, the outputs still have the ability to sink and source small amounts of transient current if ...

Page 13

APPLICATIONS INFORMATION When the feedback ratios mismatch (Δβ), common mode to differential conversion occurs. Setting the differential input to zero (V gree of common mode to differential conversion is given by the equation – V – V ...

Page 14

LTC6404-2 APPLICATIONS INFORMATION R INM CHOSEN SO THAT INM S R2 CHOSEN TO BALANCE Figure ...

Page 15

APPLICATIONS INFORMATION which incorporate an internal lowpass fi lter network with a –3dB bandwidth of 88.5MHz (Figure 6). These pins each have a DC output impedance of 50Ω. In- – ternal capacitances are 12pF each fi ltered ...

Page 16

LTC6404-2 APPLICATIONS INFORMATION Noise Considerations The LTC6404-2’s input referred voltage noise is on the order of 1.5nV/√Hz. Its input referred current noise is on the order of 3pA/√Hz. In addition to the noise generated by the amplifi er, the feedback ...

Page 17

APPLICATIONS INFORMATION 100 TOTAL (AMPLIFIER AND FEEDBACK NETWORK) OUTPUT NOISE 10 FEEDBACK RESISTOR NETWORK NOISE ALONE 1 0.1 10 100 • R (Ω Figure 10. LTC6404-2 Output Spot Noise vs Spot Noise Contributed by ...

Page 18

LTC6404-2 APPLICATIONS INFORMATION make the apparent voltage offset of the amplifi er appear worse than specifi ed. In general, the apparent input referred offset induced by feedback factor mismatch is given by the equation: V ≈ (V – V OSDIFF(APPARENT) ...

Page 19

... ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. UD Package 16-Lead Plastic QFN (3mm × ...

Page 20

... S/N with 3V Supply, SO-8 Package 76dB S/N with 3V Supply, SO-8 Package www.linear.com ● , 1MHz: –94dBc, 13mA, Low Noise: 3nV/√Hz P-P = 200Ω 105mA at 25°C IN S(MAX) = 200Ω 62mA at 25°C IN S(MAX) =18mA S LT 0208 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 64042f ...

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