LT6604CUFF-10#PBF Linear Technology, LT6604CUFF-10#PBF Datasheet

IC AMP DIFF LN DUAL 34-QFN

LT6604CUFF-10#PBF

Manufacturer Part Number
LT6604CUFF-10#PBF
Description
IC AMP DIFF LN DUAL 34-QFN
Manufacturer
Linear Technology
Datasheet

Specifications of LT6604CUFF-10#PBF

Amplifier Type
Differential
Number Of Circuits
2
Output Type
Differential
Current - Input Bias
40µA
Voltage - Input Offset
8000µV
Current - Supply
36mA
Voltage - Supply, Single/dual (±)
3 V ~ 11 V, ±1.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
34-QFN
No. Of Amplifiers
2
Input Offset Voltage
35mV
Bandwidth
10MHz
Supply Voltage Range
3V To 11V
Supply Current
36mA
Amplifier Case Style
QFN
No. Of Pins
34
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output / Channel
-
-3db Bandwidth
-
Slew Rate
-
Gain Bandwidth Product
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT6604CUFF-10#PBFLT6604CUFF-10
Manufacturer:
LT
Quantity:
10 000
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APPLICATIONS
TYPICAL APPLICATION
FEATURES
n
n
n
n
n
n
n
0.01μF
0.01μF
Dual Differential Amplifi er with 10MHz Lowpass Filters
82dB Signal-to-Noise (3V Supply, 2V
Low Distortion, 2V
Specifi ed for Operation with 3V, 5V and ±5V Supplies
Fully Differential Inputs and Outputs
Adjustable Output Common Mode Voltage
Small 4mm × 7mm × 0.75mm QFN Package
Dual Differential ADC Driver Plus Filter
Single-Ended to Differential Converter
Matched, Dual, Differential Filter Stage
Common Mode Translation of Differential Signals
High Speed ADC Antialiasing and DAC Smoothing in
Wireless Infrastructure or Networking Applications
High Speed Test and Measurement Equipment
Medical Imaging
4th Order Filters
Approximates Chebyshev Response
Guaranteed Phase and Gain Matching
Resistor-Programmable Differential Gain
1MHz: 88dBc 2nd, 97dBc 3rd
5MHz: 74dBc 2nd, 77dBc 3rd
+
+
402Ω
402Ω
402Ω
402Ω
LT6604-10
+INA
V
V
–INA
+INB
V
V
–INB
MIDA
OCMA
MIDB
OCMB
P-P
+
+
, 800Ω Load
+
+
V
–OUTA
+OUTA
–OUTB
+OUTB
V
V
V
+
+
+
A
B
B
P-P
3V
3V
50Ω
50Ω
50Ω
50Ω
Output)
18pF
18pF
LTC22xx
AIN
AIN
+
+
DESCRIPTION
The LT
amplifi ers, each with a 4th order, 10MHz lowpass fi lter. The
fi xed frequency lowpass fi lter approximates a Chebyshev
response. By integrating a fi lter and a differential ampli-
fi er, distortion and noise are made exceptionally low. At
unity gain, the measured in band signal-to-noise ratio is
an impressive 82dB. At higher gains, the input referred
noise decreases, allowing the part to process smaller
input differential signals without signifi cantly degrading
the signal-to-noise ratio.
Gain and phase are highly matched between the two chan-
nels. Gain for each channel is independently programmed
using two external resistors. The LT6604-10 enables level
shifting by providing an adjustable output common mode
voltage, making it ideal for directly interfacing to ADCs.
The LT6604-10 is fully specifi ed for 3V operation. The
differential design enables outstanding performance at
a 2V
page of this data sheet for a complete list of related single
and dual differential amplifi ers with integrated 2.5MHz to
20MHz lowpass fi lters.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
3V
Differential Amplifi er and
DOUT
DOUT
DUAL ADC
P-P
®
660410 TA01
6604-10 consists of two matched, fully differential
signal level for a single 3V supply. See the back
Dual Very Low Noise,
10MHz Lowpass Filter
Channel to Channel Gain Matching, V
20
18
16
14
12
10
8
6
4
2
0
–0. 1 5
–0.1
–0.05
GAIN MATCH (dB)
0
0.05
LT6604-10
0.1
50 TYPICAL UNITS
T
GAIN = 1
f
IN
A
= 25°C
= 10MHz
0.15
0.2
660410 TA01b
0.25
S
660410fb
= 5V
1

Related parts for LT6604CUFF-10#PBF

LT6604CUFF-10#PBF Summary of contents

Page 1

... L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 3V ...

Page 2

... MID Lead Temperature (Soldering, 10 sec) .................. 300°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LT6604CUFF-10#PBF LT6604CUFF-10#TRPBF LT6604IUFF-10#PBF LT6604IUFF-10#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

ELECTRICAL CHARACTERISTICS range, otherwise specifi cations are PARAMETER Filter Gain Either Channel Matching of Filter Gain Matching of Filter Phase Filter Gain Either Channel, V ...

Page 4

LT6604-10 ELECTRICAL CHARACTERISTICS range, otherwise specifi cations are PARAMETER Input Bias Current Input Referred Differential Offset Differential Offset Drift Input Common Mode Voltage (Note 3) Output Common Mode Voltage (Note 5) Output Common Mode Offset (with Respect ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Amplitude Response 10 0 –10 –20 –30 –40 –50 –60 –70 –80 100k 1M FREQUENCY (Hz) Passband Gain and Group Delay 12 11 GAIN GROUP DELAY ...

Page 6

LT6604-10 TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Signal Level 800Ω at Each Output 25°C, Gain = 1 A –40 2ND HARMONIC, 5MHz INPUT 3RD HARMONIC, –50 5MHz INPUT 2ND HARMONIC, –60 1MHz ...

Page 7

PIN FUNCTIONS +INA and –INA (Pins 2, 4): Channel A Input Pins. Signals can be applied to either or both input pins through identi- cal external resistors The DC gain from differential IN inputs to the differential outputs ...

Page 8

LT6604-10 BLOCK DIAGRAM +INA + –INA – OCMA 6 – MIDB +INB IN + ...

Page 9

APPLICATIONS INFORMATION Interfacing to the LT6604-10 Note: The LT6604-10 contains two identical fi lters. The following applications information only refers to one fi lter. The two fi lters are independent except that they share the same negative supply voltage V ...

Page 10

LT6604-10 APPLICATIONS INFORMATION In Figure 3 the LT6604-10 is providing 12dB of gain. The gain resistor has an optional 62pF in parallel to improve the passband fl atness near 10MHz. The common mode output voltage is set to 2V. Use ...

Page 11

APPLICATIONS INFORMATION 2.5V 0.1μF COILCRAFT NETWORK TTWB-1010 ANALYZER 25 388Ω 1:1 SOURCE 4 – 1/2 34 50Ω LT6604-10 53.6Ω 6 – 388Ω 7 0.1μF –2.5V Figure 5 Figure laboratory setup that can ...

Page 12

LT6604-10 APPLICATIONS INFORMATION The LT6604-10 was designed to process a variety of input signals including signals centered on the mid-sup- ply voltage and signals that swing between ground and a positive voltage in a single supply system (Figure 1). The ...

Page 13

APPLICATIONS INFORMATION Figure 8 is plot of the noise spectral density as a function of frequency for an LT6604-10 channel with R using the fi xture of Figure 7 (the instrument noise has been subtracted from the results). The noise ...

Page 14

LT6604-10 TYPICAL APPLICATION Amplitude Response 10 0 –10 –20 –30 –40 –50 –60 DIFFERENTIAL GAIN = 1 – 200Ω 82pF –80 100k 1M 10M FREQUENCY (Hz) 14 Dual, Matched, 5th Order, 10MHz Lowpass Filter + V ...

Page 15

... 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. UFF Package 34-Lead Plastic QFN (4mm × ...

Page 16

... SNR = 82dB at 3V Supply, 4 SNR = 76dB at 3V Supply, 4 www.linear.com ● th Order, Differential th Order, Differential th Order Filter th Order Filter th Order Filter th Order Filter th Order Filter th Order Filter th Order Filter th Order Filter 660410fb LT 0409 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 ...

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