LINER LT1818 2ghz, 3.5ma gain of 7 stable rail-to-rail i/o dual op amp Datasheet

LTC6253-7
2GHz, 3.5mA Gain of 7
Stable Rail-to-Rail I/O
Dual Op Amp
FEATURES
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DESCRIPTION
Gain Bandwidth Product: 2GHz
–3dB Frequency (AV = 7): 160MHz
Low Quiescent Current: 3.5mA Max
High Slew Rate: 500V/µs
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Low Broadband Voltage Noise: 2.75nV/√Hz
Fast Output Recovery
Supply Voltage Range: 2.5V to 5.25V
Input Offset Voltage: 350µV Max
Large Output Current: 90mA
CMRR: 105dB
Open Loop Gain: 60V/mV
Operating Temperature Range: –40°C to 125°C
MS10 Package with Independent Shutdown Pins
The LTC®6253-7 is a dual high speed, low power, rail-torail input/output operational amplifier. On only 3.5mA of
supply current, it features a 2GHz gain-bandwidth product,
500V/µs slew rate and a low 2.75nV/√Hz of input-referred
noise. The combination of high bandwidth, high slew rate,
low power consumption and low broadband noise makes
the LTC6253-7 ideal for lower supply voltage, high speed
signal conditioning systems. The device is stable for closed
loop noise gains of 7 or higher.
The LTC6253-7 maintains high efficiency performance
from supply voltage levels of 2.5V to 5.25V and is fully
specified at supplies of 2.7V and 5.0V.
For applications that require power-down, the LTC6253-7
offers a shutdown pin which disables the amplifier and
reduces current consumption to 42µA.
APPLICATIONS
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The LTC6253-7 can be used as a plug-in replacement for
many commercially available op amps to reduce power or
to improve input/output range and performance.
Low Voltage, High Frequency Signal Processing
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
Active Filters
Battery Powered Equipment
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
LTC6253–7 Driving LTC2314–14
1024 Point FFT
ADC Driver with Gain
5V
2.2µF
4.4V
VIN = 0V TO 580mV
+
–
V–
REF OVDD
VDD
½ LTC6253-7
V+
100Ω
OUT
1.21k
–0.7V
2.2µF
CS
AIN
LTC2314-14
8-PIN TSOT
47pF
CS
SCK
SCK
SDO
SDO
AMPLITUDE (dBFS)
2.2µF
3.3V
GND
625234 TA01
200Ω
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
fS = 2Msps
F1 = 20.5kHz
F1 AMPLITUDE = –0.916dBFS
SFDR = 89dB
SNR = 72dB
0 100 200 300 400 500 600 700 800 900 1000
FREQUENCY (kHz)
62537 TA01b
62537f
For more information www.linear.com/LTC6253-7
1
LTC6253-7
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
(Note 1)
TOP VIEW
1
2
3
4
SHDNA 5
OUT A
–IN A
+IN A
V–
–
+
+
–
Total Supply Voltage (V+ to V –).................................5.5V
Input Current (+IN, –IN, SHDN) (Note 2)............... ±10mA
Output Current (Note 3)...................................... ±100mA
Operating Temperature Range (Note 4).. –40°C to 125°C
Specified Temperature Range (Note 5)... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Junction Temperature............................................ 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C
10
9
8
7
6
V+
OUT B
–IN B
+IN B
SHDNB
MS PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 150°C, qJA = 160°C/W (NOTE 9)
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
LTC6253IMS-7#PBF
LTC6253IMS-7#TRPBF
LTGWS
10-Lead Plastic MSOP
–40°C to 85°C
LTC6253HMS-7#PBF
LTC6253HMS-7#TRPBF
LTGWS
10-Lead Plastic MSOP
–40°C to 125°C
*Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS
(VS = 5V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 5V, 0V; VSHDN = 2V; VCM = VOUT =
2.5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
VOS
Input Offset Voltage
VCM = Half Supply
MIN
TYP
MAX
UNITS
50
l
–350
–1000
350
1000
µV
µV
–2.2
–3.3
0.1
l
2.2
–3.3
mV
mV
–350
–550
50
l
350
550
µV
µV
–2.75
–4
0.1
l
2.75
4
mV
mV
VCM = V+ – 0.5V, NPN Mode
DVOS
Input Offset Voltage Match
(Channel-to-Channel) (Note 7)
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
VOS TC
Input Offset Voltage Drift
IB
Input Bias Current (Note 6)
VCM = Half Supply
Input Offset Current
–0.75
–1.15
–0.1
0.75
1.15
µA
µA
0.8
0.4
1.4
l
3.0
5.0
µA
µA
–0.5
–0.6
–0.03
l
0.5
0.6
µA
µA
–0.5
–0.6
–0.03
l
0.5
0.6
µA
µA
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
en
in
µV/°C
l
VCM = V+ – 0.5V, NPN Mode
IOS
–3.5
l
Input Noise Voltage Density
f = 1MHz
2.75
nV/√Hz
Input 1/f Noise Voltage
f = 0.1Hz to 10Hz
2
µVP-P
Input Noise Current Density
f = 1MHz
4
pA/√Hz
62537f
2
For more information www.linear.com/LTC6253-7
LTC6253-7
ELECTRICAL CHARACTERISTICS
(VS = 5V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 5V, 0V; VSHDN = 2V; VCM = VOUT =
2.5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
CIN
Input Capacitance
Differential Mode
Common Mode
2.5
0.8
pF
pF
RIN
Input Resistance
Differential Mode
Common Mode
7.2
3
kΩ
MΩ
AVOL
Large Signal Voltage Gain
RL = 1k to Half Supply (Note 9)
VCMR
Input Common Mode Range
PSRR
Power Supply Rejection Ratio
60
V/mV
V/mV
5
2.4
13
l
V/mV
V/mV
85
82
105
l
dB
dB
VOL
Output Swing Low (VOUT
l
0
l
66.5
62
l
2.5
VS = 2.5V to 5.25V, VCM = 1V
Supply Voltage Range (Note 5)
– V–)
No Load
VS
70
ISINK = 5mA
40
65
mV
mV
60
90
120
mV
mV
150
200
320
mV
mV
65
100
120
mV
mV
115
170
210
mV
mV
270
330
450
mV
mV
–90
–40
–32
mA
mA
l
Output Swing High (V+ – VOUT)
No Load
l
ISOURCE = 5mA
l
ISOURCE = 25mA
l
ISC
Output Short-Circuit Current
Sourcing
l
Sinking
l
IS
Supply Current per Amplifier
60
40
VCM = Half Supply
100
3.5
4.8
mA
mA
4.25
4.85
5.9
mA
mA
42
55
75
µA
µA
l
ISD
Disable Supply Current
VSHDN = 0.8V
l
ISHDNL
ISHDNH
SHDN Pin Current Low
VSHDN = 0.8V
SHDN Pin Current High
mA
mA
3.3
l
VCM = V+ – 0.5V
V
25
l
ISINK = 25mA
V
dB
dB
5.25
l
VOH
UNITS
35
16
VCM = 0V to 3.5V
Common Mode Rejection Ratio
MAX
l
RL = 100Ω to Half Supply (Note 9)
CMRR
TYP
–3
–4
–1.6
l
0
0
µA
µA
–300
–600
35
l
300
600
nA
nA
0.8
V
VSHDN = 2V
VL
SHDN Pin Input Voltage Low
l
l
VH
SHDN Pin Input Voltage High
IOSD
Output Leakage Current in Shutdown
VSHDN = 0.8V, Output Shorted to Either
Supply
2
100
nA
V
tON
Turn-On Time
VSHDN = 0.8V to 2V
3.5
µs
tOFF
Turn-Off Time
VSHDN = 2V to 0.8V
2
µs
62537f
For more information www.linear.com/LTC6253-7
3
LTC6253-7
ELECTRICAL CHARACTERISTICS
(VS = 5V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 5V, 0V; VSHDN = 2V; VCM = VOUT =
2.5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
BW
–3dB Closed Loop Bandwidth
AV = 7, RL = 1k to Half Supply
GBW
Gain-Bandwidth Product
f = 10MHz, RL = 1k to Half Supply
MIN
l
tS , 0.1%
Settling Time to 0.1%
AV = 7, 2V Output Step RL = 1k,
VCC = 4.5V, VEE = 0.5V
SR
Slew Rate
AV = –6, 4V Output Step (Note 10)
l
0.9
0.67
300
250
TYP
MAX
UNITS
160
MHz
2
GHz
GHz
32
ns
500
V/µs
V/µs
FPBW
Full Power Bandwidth
VOUT = 4VP-P (Note 12)
13
MHz
HD2/HD3
Harmonic Distortion
RL = 1k to Half Supply, AV = +7,
RF = 499Ω
fC = 100kHz, VO = 2VP-P
fC = 1MHz, VO = 2VP-P
fC = 5MHz, VO = 2VP-P
99/94
73/71
60/56
dBc
dBc
dBc
RL = 1kΩ to Half Supply, AV = +7,
RF = 3kΩ
fC = 100kHz, VO = 2VP-P
fC = 1MHz, VO = 2VP-P
fC = 5MHz, VO = 2VP-P
105/109
82/87
66/67
dBc
dBc
dBc
Crosstalk
AV = 7, RL = 1k to Half Supply,
VOUT = 2VP-P, f = 2.5MHz
–79
dB
(VS = 2.7V) The l denotes the specifications which apply across the specified temperature range, otherwise specifications are at
TA = 25°C. For each amplifier VS = 2.7V, 0V; VSHDN = 2V; VCM = VOUT = 1.35V, unless otherwise noted.
SYMBOL PARAMETER
VOS
Input Offset Voltage
CONDITIONS
MIN
TYP
MAX
UNITS
0
–300
700
l
1250
1500
µV
µV
–1.6
–2.0
0.9
l
3.2
3.4
mV
mV
–350
–750
10
l
350
750
µV
µV
–2.8
–4
0.1
l
2.8
4
mV
mV
–275
l
–1000
–1500
600
900
nA
nA
0.6
0
1.175
l
2.5
4.0
µA
µA
–500
–600
–150
l
500
600
nA
nA
–500
–600
–30
l
500
600
nA
nA
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
DVOS
Input Offset Voltage Match
(Channel-to-Channel) (Note 8)
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
VOS TC
Input Offset Voltage Drift
IB
Input Bias Current (Note 7)
VCM = V+ – 0.5V, NPN Mode
IOS
Input Offset Current
2.75
l
VCM = Half Supply
VCM = Half Supply
VCM = V+ – 0.5V, NPN Mode
Input Noise Voltage Density
f = 1MHz
Input 1/f Noise Voltage
f = 0.1Hz to 10Hz
in
Input Noise Current Density
f = 1MHz
3.6
pA/√Hz
CIN
Input Capacitance
Differential Mode
Common Mode
2.5
0.8
pF
pF
RIN
Input Resistance
Differential Mode
Common Mode
7.2
3
kΩ
MΩ
en
2.9
µV/°C
2
nV/√Hz
µVP-P
62537f
4
For more information www.linear.com/LTC6253-7
LTC6253-7
ELECTRICAL CHARACTERISTICS
(VS = 2.7V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 2.7V, 0V; VSHDN = 2V; VCM = VOUT =
1.35V, unless otherwise noted.
SYMBOL PARAMETER
AVOL
CMRR
Large Signal Voltage Gain
Common Mode Rejection Ratio
VCMR
Input Common Mode Range
PSRR
Power Supply Rejection Ratio
CONDITIONS
Output Swing Low (VOUT – V–)
TYP
16.5
7
36
V/mV
V/mV
RL = 100Ω to Half Supply
(Note 11)
2.3
1.8
6.9
l
V/mV
V/mV
80
77
105
l
dB
dB
l
0
l
66.5
62
l
2.5
VCM = 0V to 1.2V
VS = 2.5V to 5.25V, VCM = 1V
No Load
VS
70
mV
mV
80
100
140
mV
mV
110
150
190
mV
mV
55
75
95
mV
mV
125
150
200
mV
mV
165
200
275
mV
mV
–35
–18
–14
mA
mA
l
ISOURCE = 5mA
l
ISOURCE = 10mA
l
ISC
Short-Circuit Current
Sourcing
l
Sinking
l
IS
Supply Current per Amplifier
20
17
VCM = Half Supply
40
3.5
4.5
mA
mA
3.7
4.6
5.5
mA
mA
24
35
50
µA
µA
l
ISD
Disable Supply Current
VSHDN = 0.8V
l
ISHDNL
ISHDNH
SHDN Pin Current Low
SHDN Pin Current High
VSHDN = 0.8V
mA
mA
2.9
l
VCM = V+ – 0.5V
V
28
40
l
No Load
dB
dB
5.25
l
ISINK = 10mA
V
22
l
Output Swing High (V+ – VOUT)
UNITS
l
ISINK = 5mA
VOH
MAX
RL = 1k to Half Supply
(Note 11)
Supply Voltage Range (Note 5)
VOL
MIN
–1
–1.5
–0.5
l
0
0
µA
µA
–300
–600
45
l
300
600
nA
nA
0.8
V
VSHDN = 2V
VL
SHDN Pin Input Voltage
l
VH
SHDN Pin Input Voltage
l
IOSD
Output Leakage Current Magnitude in Shutdown VSHDN = 0.8V, Output Shorted to Either
Supply
tON
Turn-On Time
tOFF
Turn-Off Time
BW
–3dB Closed Loop Bandwidth
AV = +7, RL = 1k to Half Supply
GBW
Gain-Bandwidth Product
f = 10MHz, RL = 1k to Half Supply
2.0
V
100
nA
VSHDN = 0.8V to 2V
5
µs
VSHDN = 2V to 0.8V
2
µs
l
0.8
0.5
130
MHz
1.3
GHz
GHz
62537f
For more information www.linear.com/LTC6253-7
5
LTC6253-7
ELECTRICAL CHARACTERISTICS
(VS = 2.7V) The l denotes the specifications which apply across the
specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 2.7V, 0V; VSHDN = 2V; VCM = VOUT =
1.35V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
tS , 0.1
Settling Time to 0.1%
AV = +7, 2V Output Step RL = 1k, VCC = 2.35V,
VEE = –0.35V
25
ns
SR
Slew Rate
AV = –6, 2V Output Step (Note 10)
300
V/µs
FPBW
MIN
TYP
MAX
UNITS
Full Power Bandwidth
VOUT = 2VP-P (Note 12)
11
MHz
Crosstalk
AV = +7, RL = 1k to Half Supply,
VOUT = 2VP-P, f = 2.5MHz
–88
dB
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: The inputs are protected by back-to-back diodes. If any of
the input or shutdown pins goes 300mV beyond either supply or the
differential input voltage exceeds 1.4V the input current should be limited
to less than 10mA. This parameter is guaranteed to meet specified
performance through design and/or characterization. It is not production
tested.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output current is high. This
parameter is guaranteed to meet specified performance through design
and/or characterization. It is not production tested.
Note 4: The LTC6253-7I is guaranteed to meet specified performance
from –40°C to 85°C. The LTC6253-7H is guaranteed to meet specified
performance from –40°C to 125°C.
Note 5: Supply voltage range is guaranteed by power supply rejection
ratio test.
Note 6: The input bias current is the average of the average of the currents
at the positive and negative input pins.
Note 7: Matching parameters are the difference between the two amplifiers
on the LTC6253-7.
Note 8: Thermal resistance varies with the amount of PC board metal
connected to the package. The specified values are with short traces
connected to the leads with minimal metal area.
Note 9: The output voltage is varied from 0.5V to 4.5V during
measurement.
Note 10: Middle 2/3 of the output waveform is observed. RL = 1k to half
supply.
Note 11: The output voltage is varied from 0.5V to 2.2V during
measurement.
Note 12: FPBW is determined from distortion performance in a gain of +7
configuration with HD2, HD3 < –40dBc as the criteria for a valid output.
TYPICAL PERFORMANCE CHARACTERISTICS
VOS Distribution, VCM = V+ – 0.5V
(NPN Stage)
VOS Distribution, VCM = VS/2
(MS, PNP Stage)
40
VS = 5V, 0V
14 VCM = 4.5V
25
20
15
10
5
200
100
12
VOLTAGE OFFSET (µV)
30
PERCENT OF UNITS (%)
PERCENT OF UNITS (%)
300
16
VS = 5V, 0V
35 VCM = 2.5V
0
–250
10
8
6
4
250
62537 G01
0
–2000
VS = 5V, 0V
VCM = 2.5V
6 DEVICES
0
–100
–200
–300
–400
2
–150
–50
50
150
INPUT OFFSET VOLTAGE (µV)
VOS vs Temperature, VS = 5V, 0V
(PNP Stage)
–500
–1200
–400
400
1200
INPUT OFFSET VOLTAGE (µV)
2000
62537 G03
–600
–55 –35 –15
5 25 45 65 85 105 125
TEMPERATURE (°C)
62537 G05
62537f
6
For more information www.linear.com/LTC6253-7
LTC6253-7
TYPICAL PERFORMANCE CHARACTERISTICS
VOS vs Temperature, VS = 5V, 0V
(NPN Stage)
2000
1200
500
0
–500
–1000
–1500
900
800
700
600
400
–55 –35 –15
5 25 45 65 85 105 125
TEMPERATURE (°C)
2.5
5 25 45 65 85 105 125
TEMPERATURE (°C)
VS = ±2.5V
CHANGE IN OFFSET VOLTAGE (µV)
1.5
1.0
0.5
–55°C
0
–0.5
25°C
–1.0
125°C
–1.5
5
0
–5
–10
–15
–2.5
–3.0
25 50
–100 –75 –50 –25 0
OUTPUT CURRENT (mA)
5
75
–20
100
125°C
0.1Hz to 10Hz Voltage Noise
2000
VS = 5V, 0V
1500
2500
INPUT BIAS CURRENT (nA)
–1000
–2000
–3000
2000
VCM = 4.5V
1500
1000
500
VCM = 2.5V
0
–4000
1 1.5 2 2.5 3 3.5 4 4.5
COMMON MODE VOLTAGE (V)
5
62537 G12
–500
–55
20 40 60 80 100 120 140 160 180 200
TIME AFTER POWER–UP (s)
62357 G11
Input Bias Current vs Temperature
–55°C
0
62537 G10
3000
1000
0.5
62537 G08
Warm-Up Drift vs Time
–2.0
25°C
0
200
–300
10
2.0
Input Bias Current
vs Common Mode Voltage
0
700
Offset Voltage vs Output Current
3.0
62537 G09
VS = 5V, 0V
1200
VS = 2.7V, 0V
–1300 VCM = 2.2V
6 DEVICES
–1800
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
62537 G07
OFFSET VOLTAGE (mV)
OFFSET VOLTAGE (µV)
600
V = 5V, 0V
400 S
200
–55°C
0
25°C
–200
–400
125°C
–600
–800
–1000
–1200
–1400
–1600
–1800
–2000
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
INPUT COMMON MODE VOLTAGE (V)
1700
–800
500
Offset Voltage
vs Input Common Mode Voltage
2000
2200
1000
62537 G06
3000
2700
VOLTAGE NOISE (500nV/DIV)
VS = 5V, 0V
–2000 VCM = 4.5V
6 DEVICES
–2500
–55 –35 –15
INPUT BIAS CURRENT (nA)
3200
VOLTAGE OFFSET (µV)
VOLTAGE OFFSET (µV)
1000
–5000
VOS vs Temperature,
VS = 2.7V, 0V (NPN Stage)
VS = 2.7V, 0V
1100 VCM = 1.35V
6 DEVICES
1500
VOLTAGE OFFSET (µV)
VOS vs Temperature,
VS = 2.7V, 0V (PNP Stage)
1000
500
0
–500
–1000
–1500
–25
5
35
65
TEMPERATURE (°C)
95
125
62537 G13
–2000
0
1
2
3
4 5 6 7
TIME (1s/DIV)
8
9
10
62537 G14
62537f
For more information www.linear.com/LTC6253-7
7
LTC6253-7
TYPICAL PERFORMANCE CHARACTERISTICS
Input Noise Voltage and Noise
Current vs Frequency
Supply Current
vs Supply Voltage (Per Amplifier)
5
5.0
1000
Supply Current vs Input Common
Mode Voltage (Per Amplifier)
VS = 5V, 0V
AV = 1
4.0
in, VCM = 2.5V
10
0.1
en, VCM = 2.5V
1
10
100
25°C
3.0
2.5
–55°C
2.0
1.5
0
1
3
2
4
TOTAL SUPPLY VOLTAGE (V)
0
3.0
TA = –55°C
SHDN PIN CURRENT (µA)
SUPPLY CURRENT (mA)
TA = 25°C
2.5
2.0
1.5
1.0
0.5
0
0
0.5
1
1.5 2 2.5 3 3.5 4
SHDN PIN VOLTAGE (V)
4.5
5
0.50
0.25 VS = 5V, 0V
0
–0.25
–0.50
TA = 25°C
–0.75
–1.00
TA = –55°C
–1.25
–1.50
–1.75
TA = 125°C
–2.00
–2.25
–2.50
–2.75
–3.00
0 0.5 1 1.5 2 2.5 3 3.5 4
SHDN PIN VOLTAGE (V)
OFFSET VOLTAGE (mV)
12
10
–55°C
8
6
25°C
4
2
125°C
0
–2
–4
2
2.5
3
4
4.5
5
3.5
TOTAL SUPPLY VOLTAGE (V)
5.5
62537 G21
10
OUTPUT HIGH SATURATION VOLTAGE (V)
14
62537 G17
16
Minimum Supply Voltage,
VCM = VS/2 (PNP Operation)
VS = 5V, 0V
14
12
–55°C
10
8
6
4
25°C
125°C
2
0
4.5
–2
5
2
2.5
3
4
4.5
5
3.5
TOTAL SUPPLY VOLTAGE (V)
Output Saturation Voltage
vs Load Current (Output Low)
10
VS = ±2.5V
1
TA = 125°C
TA = 25°C
0.1
0.01
0.01
TA = –55°C
0.1
1
10
LOAD CURRENT (mA)
5.5
62537 G20
Output Saturation Voltage
vs Load Current (Output High)
Minimum Supply Voltage,
VCM = V+ – 0.5V (NPN Operation)
VS = 5V, 0V
3.25
1.25
2.25
4.25 4.75
COMMON MODE VOLTAGE (V)
62537 G19
62537 G18
16
2
0.25
5
SHDN Pin Current
vs SHDN Pin Voltage
5.0
3.5
–55°C
62537 G16
Supply Current Per Amplifier
vs SHDN Pin Voltage
TA = 125°C
3
0.5
62537 G15
4.0
25°C
1.0
in, VCM = 4.5V
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
VS = 5V, 0V
4.5 VCM = 2.5V
125°C
4
OFFSET VOLTAGE (mV)
1.0
125°C
3.5
SUPPLY CURRENT (mA)
en, VCM = 4.5V
OUTPUT HIGH SATURATION VOLTAGE (V)
100
SUPPLY CURRENT (mA)
VOLTAGE NOISE (nV/√Hz)
CURRENT NOISE (pA/√Hz)
4.5
100
62537 G22
VS = ±2.5V
1
TA = 125°C
0.1
TA = 25°C
TA = –55°C
0.01
0.01
0.1
1
10
LOAD CURRENT (mA)
100
62537 G23
62537f
8
For more information www.linear.com/LTC6253-7
LTC6253-7
TYPICAL PERFORMANCE CHARACTERISTICS
Output Short-Circuit Current
vs Supply Voltage
Open Loop Gain
PULSE TESTED
0
–40
TA = 25°C
TA = 125°C
–80
SOURCE
TA = –55°C
2
2.25
1.5
1.75
TOTAL SUPPLY VOLTAGE (±V)
2.5
RL = 100Ω TO MID SUPPLY
200
RL = 1k TO MID SUPPLY
100
0
–100
RL = 1k TO GND
–200
–300
RL = 100Ω TO GND
–400
–500
0
0.5
1
1.5 2 2.5 3 3.5
OUTPUT VOLTAGE (V)
4
62537 G24
20
4.5
400
RL = 1k TO GND
200
0
RL = 100Ω TO GND
–200
0
0.5
1
1.5
2
OUTPUT VOLTAGE (V)
GAIN (dB)
8
6
62537 G26
80
1M
10M
100M
FREQUENCY (Hz)
50
40
GAIN
30
62537 G27
90
2500
80
2350
1700
50
1600
40
1500
30
GAIN BANDWIDTH PRODUCT
20
1300
3
3.50
4
4.50
SUPPLY VOLTAGE (V)
VS = ±2.5V
30
20
VS = ±1.35V
10
0
400
100
FREQUENCY (MHz)
10
5 5.25
RL = 1kΩ
2200
60
1900
1600
1450
GBW, 5V SUPPLY
PHASE MARGIN, 5V SUPPLY
GBW, 2.7V SUPPLY
PHASE MARGIN, 2.7V SUPPLY
50
40
30
1300
20
1150
1000
–55 –35 –15
62537 G30
80
70
2050
1750
90
PHASE MARGIN (DEG)
60
PHASE MARGIN (DEG)
70
PHASE MARGIN
1800
1200
2.50
40
Gain Bandwidth and Phase
Margin vs Temperature
PHASE MARGIN MEASURED AT
AN OPEN LOOP GAIN OF 7V/V
RL = 1kΩ
1400
60
62537 G29
Gain Bandwidth and Phase
Margin vs Supply Voltage
1900
70
50
VS = ±1.35V
10 TA = 25°C
RL = 1k
0
3
10
1G
VS = ±2.5V
PHASE
20
VS = ±2.5 V
RF = 365Ω
RL =1k
100k
2.5
PHASE (DEG)
10
2000
600
–600
5
60
12
2100
800
70
14
2200
RL = 1k TO MID SUPPLY
1000
80
0
10k
VS = 2.7V, 0V
TA = 25°C
Open Loop Gain and Phase
vs Frequency
Gain vs Frequency (AV = 7)
16
2
1200
62537 G25
18
4
RL = 100Ω TO MID SUPPLY
–400
GAIN BANDWIDTH PRODUCT (MHz)
–160
1.25
GAIN (dB)
–120
300
1400
INPUT OFFSET VOLTAGE (µV)
40
INPUT OFFSET VOLTAGE (µV)
TA = –55°C
1600
VS = 5V, 0V
TA = 25°C
400
TA = 125°C
80
Open Loop Gain
500
TA = 25°C
SINK
120
GAIN BANDWIDTH PRODUCT (MHz)
OUTPUT SHORT-CIRCUIT CURRENT (mA)
160
10
5 25 45 65 85 105 125
TEMPERATURE ( °C)
62537 G31
62537f
For more information www.linear.com/LTC6253-7
9
LTC6253-7
TYPICAL PERFORMANCE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency
Output Impedance vs Frequency
100
AV = 7, RF = 499Ω
VS = ±2.5V
TA = 25°C
90
80
100
70
CMRR (dB)
OUTPUT IMPEDANCE (Ω)
1k
10
VS = ±1.35V
VS = ±2.5V
60
50
40
30
1
20
10
0.1
0.1
1
10
FREQUENCY (MHz)
100
0
100k
500
1M
10M
100M
FREQUENCY (Hz)
62537 G32
62537 G33
Power Supply Rejection Ratio
vs Frequency
Slew Rate vs Temperature
650
VS = ±2.5V
70
625
600
60
50
PSRR–
40
30
20
10
100
1k
475
FALLING
450
SLEW RATE MEASURED AT
MIDDLE 2/3 OF OUTPUT
350
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
62537 G35
Distortion vs Frequency,
5V Supply
Series Output Resistor
vs Capacitive Load (AV = 7)
42
RS = 20Ω
36
30
RS = 10Ω
24
18
–20
VS = ±2.5V
–30 AV = 7, RF = 499Ω
VOUT = 2VP-P
–40
DISTORTION (dBc)
VS = ±2.5V
RF = 499Ω,
RG = 82.5Ω,
RL = ∞
100mV OUTPUT STEP
48
OVERSHOOT (%)
500
375
54
RG
82.5Ω
–50
–60
–70
3RD, RL = 100Ω
VIN
RF
499Ω
–
+
RL
–80
–90
2ND, RL = 1k
–100
12
RS = 50Ω
6
0
RISING
525
400
62537 G34
60
550
425
10
0
VS = ±2.5V
∆VOUT = 4VP-P
AV = –6V, R F = 590Ω
575
PSRR+
SLEW RATE (V/µs)
POWER SUPPLY REJECTION RATIO (dB)
80
1G
10
–110
100
1000
CAPACITIVE LOAD (pF)
10000
3RD, RL = 1k
2ND, RL = 100Ω
–120
0.01
0.1
1
FREQUENCY (MHz)
62537 G36
10
62537 G38
62537f
10
For more information www.linear.com/LTC6253-7
LTC6253-7
TYPICAL PERFORMANCE CHARACTERISTICS
Distortion vs Frequency,
2.7V Supply
–50
–20
3RD, RL = 100Ω
RG
82.5Ω
–50
–60
–
+
VIN
–70
AV = 7,RF = 3kΩ, R G = 499Ω, R L = 1kΩ
–60 VOUT = 2VP-P, VS = ±2.5V
VOUT = 1VP-P, VS = ±1.35V
–70
RF
499Ω
RL
–80
–90
2ND, RL = 1k
–100
3RD, RL = 1k
–110
–120
0.01
DISTORTION (dBc)
DISTORTION (dBc)
VS = ±1.35V
–30 AV = 7, RF = 499Ω
VOUT = 1VP-P
–40
Distortion vs Frequency,
(Moderate Loading, AV = 7)
–80
–90
HD3, VS = ±1.35V
–100
HD3, VS = ±2.5V
–110
2ND, RL = 100Ω
–120
0.1
1
FREQUENCY (MHz)
HD2, VS = ±1.35V
–130
0.01
10
HD2, VS = ±2.5V
0.1
1
FREQUENCY (MHz)
62537 G49
62537 G39
0.1% Settling Time
vs Output Step
Maximum Undistorted Output
Signal vs Frequency
45
4
3
2
1
SHDN Pin Response Time
VS = 4.5V, –0.5V
AV = 7
40
SETTLING TIME (ns)
OUTPUT VOLTAGE SWING (VP-P)
5
10
VS = ±2.5V
AV = 7
RF = 499Ω
RL = 1k
HD2, HD3 ≤ –40dBc
0
0.01
0.1
1
10
FREQUENCY (MHz)
100
VOUT
1V/DIV
35
VSHDN
2V/DIV
30
25
–4
–3
–2
–1
0
1
2
OUTPUT STEP (V)
3
4
AV = 7
VS = ±2.5V
RL = 1k
VIN = 280mV
62537 G43
62537 G42
Large Signal Response
Small Signal Response
62537 G45
2µs/DIV
Output Overdriven Recovery
OUTPUT
50mV/DIV
0mV
VOUT
2V/DIV
0mV
VIN
500mV/DIV
1V/DIV
INPUT
10mV/DIV
AV = 7
VS = ±2.5V
TA = 25°C
RL = 1k
20ns/DIV
62537 G46
AV = 7
VS = ±2.5V
TA = 25°C
RL = 1k
5ns/DIV
62537 G47
AV = 7
VS = ±2.5V
TA = 25°C
VIN = 1VP-P
20ns/DIV
62537 G48
62537f
For more information www.linear.com/LTC6253-7
11
LTC6253-7
PIN FUNCTIONS
–IN: Inverting Input of Amplifier. Input range from V–
to V+.
V– : Negative Supply Voltage. Typically 0V. This can be made
a negative voltage as long as 2.5V ≤ (V+ – V–) ≤ 5.25V.
+IN: Non-Inverting Input of Amplifier. Input range from
V– to V+.
SHDN: Active Low Shutdown. Threshold is typically 1.1V
referenced to V–. Floating this pin will turn the part on.
V+ : Positive Supply Voltage. Total supply voltage ranges
from 2.5V to 5.25V.
OUT: Amplifier Output. Swings rail-to-rail and can typically
source/sink over 90mA of current at a total supply of 5V.
APPLICATIONS INFORMATION
Circuit Description
The LTC6253-7 has an input and output signal range that
extends from the negative power supply to the positive
power supply. Figure 1 depicts a simplified schematic of
the amplifier. The input stage is comprised of two differential amplifiers, a PNP stage, Q1/Q2, and an NPN stage,
Q3/Q4 that are active over different common mode input
voltages. The PNP stage is active between the negative
supply to nominally 1.2V below the positive supply. As the
input voltage approaches the positive supply, the transistor
Q5 will steer the tail current, I1, to the current mirror, Q6/
Q7, activating the NPN differential pair and the PNP pair
becomes inactive for the remaining input common mode
range. Also, at the input stage, devices Q17 to Q19 act to
cancel the bias current of the PNP input pair. When Q1/Q2
are active, the current in Q16 is controlled to be the same
as the current in Q1 and Q2. Thus, the base current of Q16
is nominally equal to the base current of the input devices.
The base current of Q16 is then mirrored by devices Q17
to Q19 to cancel the base current of the input devices Q1/
Q2. A pair of complementary common emitter stages, Q14/
Q15, enable the output to swing from rail-to-rail.
V+
V+
+
ESDD1
I2
R3
V–
ESDD2
+
I1
D6
D8
D5
D7
–IN
Q13
+
VBIAS
Q5
Q3
Q1
Q17
Q18
Q9
V+
Q19
ESDD5
OUT
ESDD3
V–
I3
Q2
BUFFER
AND
OUTPUT BIAS
Q10
Q16
Q15
V–
Q4
ESDD4
R5
Q12
Q11
+IN
R4
Q7
ESDD6
Q8
Q6
R1
V–
R2
Q14
625234 F01
Figure 1. LTC6253-7 Simplified Schematic Diagram
62537f
12
For more information www.linear.com/LTC6253-7
LTC6253-7
APPLICATIONS INFORMATION
Input Offset Voltage
Input Protection
The offset voltage will change depending upon which
input stage is active. The PNP input stage is active from
the negative supply rail to approximately 1.2V below the
positive supply rail, then the NPN input stage is activated
for the remaining input range up to the positive supply rail
with the PNP stage inactive. The offset voltage magnitude
for the PNP input stage is trimmed to less than 350µV with
5V total supply at room temperature, and is typically less
than 150μV. The offset voltage for the NPN input stage is
less than 2.2mV with 5V total supply at room temperature.
The LTC6253-7’s input stages are protected against a large
differential input voltage of 1.4V or higher by 2 pairs of
back-to-back diodes to prevent the emitter-base breakdown of the input transistors. In addition, the input and
shutdown pins have reverse biased diodes connected to
the supplies. The current in these diodes must be limited
to less than 10mA. The amplifiers should not be used as
comparators or in other open loop applications.
Input Bias Current
The LTC6253-7 uses a bias current cancellation circuit
to compensate for the base current of the PNP input pair.
This results in a typical IB of about 100nA. When the input common mode voltage is less than 200mV, the bias
cancellation circuit is no longer effective and the input
bias current magnitude can reach a value above 4µA. For
common mode voltages ranging from 0.2V above the
negative supply to 1.2V below the positive supply, the
low input bias current allows the amplifiers to be used in
applications with high source resistances where errors
due to voltage drops must be minimized.
Output
The LTC6253-7 has excellent output drive capability. The
amplifiers can typically deliver 90mA of output drive current at a total supply of 5V. The maximum output current
is a function of the total supply voltage. As the supply
voltage to the amplifier decreases, the output current
capability also decreases. Attention must be paid to keep
the junction temperature of the IC below 150°C (refer
to the Power Dissipation Section) when the output is in
continuous short-circuit. The output of the amplifier has
reverse-biased diodes connected to each supply. If the
output is forced beyond either supply, extremely high
current will flow through these diodes which can result
in damage to the device. Forcing the output to even 1V
beyond either supply could result in several hundred milliamps of current through either diode.
ESD
The LTC6253-7 has reverse-biased ESD protection diodes
on all inputs and outputs as shown in Figure 1.
There is an additional clamp between the positive and
negative supplies that further protects the device during
ESD strikes. Hot plugging of the device into a powered
socket must be avoided since this can trigger the clamp
resulting in larger currents flowing between the supply pins.
Capacitive Loads
The LTC6253-7 has been optimized for speed and should
not be used to drive large capacitors without resistive
isolation. Increased capacitance at the output creates an
additional pole in the open loop frequency response, worsening the phase margin. When driving capacitive loads, a
resistor of 10Ω to 100Ω should be connected between the
amplifier output and the capacitive load to avoid ringing
or oscillation. The feedback should be taken directly from
the amplifier output. Higher voltage gain configurations
tend to have better capacitive drive capability than lower
gain configurations due to lower closed loop bandwidth
and hence higher phase margin. The graphs titled Series
Output Resistor vs Capacitive Load demonstrate the transient response of the amplifier when driving capacitive
loads with various series resistors.
62537f
For more information www.linear.com/LTC6253-7
13
LTC6253-7
APPLICATIONS INFORMATION
Feedback Components
Power Dissipation
When feedback resistors are used to set up gain, care
must be taken to ensure that the pole formed by the
feedback resistors and the parasitic capacitance at the
inverting input does not degrade stability. For example
if the amplifier is set up in a gain of +11 configuration
with a gain resistor of 1k and a feedback resistor of 10k,
a parasitic capacitance of 7pF (device + PC board) at the
amplifier’s inverting input will cause the part to oscillate,
due to a pole formed at 25MHz. An additional capacitor of
0.7pF across the feedback resistor as shown in Figure 2
will eliminate any ringing or oscillation. In general, if
the resistive feedback network results in a pole whose
frequency lies within the closed loop bandwidth of the
amplifier, a capacitor can be added in parallel with the
feedback resistor to introduce a zero whose frequency
is close to the frequency of the pole, improving stability.
The LTC6253-7 is housed in a small 10-lead MS package
and typically has a thermal resistance (qJA) of 160°C/ W. It
is necessary to ensure that the die’s junction temperature
does not exceed 150°C. The junction temperature, TJ, is
calculated from the ambient temperature, TA, power dissipation, PD, and thermal resistance, qJA:
2
10k
–
VOUT
+
Example: For an LTC6253-7 operating on ±2.5V supplies
and driving a 100Ω load to ground, the worst-case power
dissipation is approximately given by
PD(MAX)/Amp = (5 • 4.8mA) + (1.25)2/100 = 39.6mW
1k
VIN
The power dissipation in the IC is a function of the supply
voltage, output voltage and load resistance. For a given
supply voltage with output connected to ground or supply,
the worst-case power dissipation PD(MAX) occurs when
the supply current is maximum and the output voltage at
half of either supply voltage for a given load resistance.
PD(MAX) is approximately (since IS actually changes with
output load current) given by:
V 
PD(MAX) = (VS •IS(MAX) ) +  S  / RL
 2
0.7pF
CPAR
TJ = TA + (PD • qJA)
62537 F02
Figure 2. 0.7pF Feedback Cancels Parasitic Pole
If both amplifiers are loaded simultaneously then the total
power dissipation is 79.2mW.
At the Absolute Maximum ambient operating temperature,
the junction temperature under these conditions will be:
Shutdown
The LTC6253-7 has SHDN pins that can shut down the
amplifier to 42µA typical supply current. The SHDN pin
needs to be taken within 0.8V of the negative supply for
the amplifier to shut down. When left floating, the SHDN
pin is internally pulled up to the positive supply and the
amplifier remains on.
TJ = TA + PD • 160°C/W
= 125 + (0.079W • 160°C/W) = 137°C
which is less than the absolute maximum junction temperature for the LTC6253-7 (150°C).
62537f
14
For more information www.linear.com/LTC6253-7
LTC6253-7
TYPICAL APPLICATIONS
ADC Driver with Gain
VS+
Figure 3 shows the LTC6253-7 acting as a gain of 7 stage
driving the LTC2314-14 14-bit A/D converter. With a gain
of 7V/V, for a 20.5kHz signal a handsome SFDR of 89dB
can be obtained at a –1dBFS input signal, with an SNR of
72dB, at a sampling frequency of 2Msps. Figure 4 shows
the FFT of the ADC’s output.
5V
4.4V
VIN = 0V TO
580mV
+
–
½ LTC6253-7 R1
V+
100Ω
OUT
V–
R2
1.21k
–0.7V
C1
47pF
CS
CS
SCK
SDO
SDO
+
U3
½ LTC6253
VOUT
VS–
–
+
IN–
–
R2
1.2k
VS–
R8
750Ω
R6
750Ω
62537 F05
AV = 41
BW = 47MHz
VS = ±1.65V
IS = 9mA
Figure 5. High Speed Low Voltage Instrumentation Amplifier
GND
62537 F03
Figure 3. ADC Driver with Gain
fS = 2Msps
F1 = 20.5kHz
F1 AMPLITUDE = –0.916dBFS
SFDR = 89dB
SNR = 72dB
are channels from an LTC6253-7. Op amp U3 can be an
LTC6252 or one channel of an LTC6253. An RC snubber
is used at the common terminal of the 30Ω gain setting
resistors to eliminate the effects of any board layout induced
coupling from the output of an amplifier to the negative
input of the other amplifier. Figure 6 shows the measured
frequency response of the instrumentation amplifier for
40
36
32
28
GAIN (dB)
AMPLITUDE (dBFS)
VS+
R3
30.1Ω
U2
½ LTC6253-7
R3
200Ω
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
C1
R9 15pF
200Ω
R4
30.1Ω
SCK
R7
750Ω
R1
1.2k
REF OVDD
LTC2314-14
8-PIN TSOT
R5
750Ω
–
C7
2.2µF
VDD
AIN
U1
½ LTC6253-7
3.3V
C6
2.2µF
C5
2.2µF
+
IN+
0 100 200 300 400 500 600 700 800 900 1000
FREQUENCY (kHz)
62537 F04
Figure 4. Dynamic Performance, LTC6253-7 Driving LTC2314-14
24
20
16
12
8
4
0
10k
High Speed Low Voltage Instrumentation Amplifier
Figure 5 shows a high speed three op amp instrumentation
amplifier with a gain of 41V/V and bandwidth of 47MHz,
operating from a total supply of 3.3V. Op amps U1 and U2
100k
1M
10M
FREQUENCY (Hz)
100M 400M
62537 F06
Figure 6. Instrumentation Amplifier Frequency Response
62537f
For more information www.linear.com/LTC6253-7
15
LTC6253-7
TYPICAL APPLICATIONS
a load of 1k. Figure 7 shows the measured CMRR across
frequency. Figure 8 shows the transient response with a
1.6VP-P output step, with the input applied to the positive
input of the instrumentation amplifier, with the negative
input grounded.
RF
RG
–
RC
VIN
VOUT
+
62537 F09
100
Figure 9. Low Gain Stage with Higher Noise Gain
90
70
15
60
13
50
11
40
9
30
7
GAIN (dB)
CMRR (dB)
80
20
10
0
10k
100k
1M
10M
FREQUENCY (Hz)
100M 400M
62537 F07
Figure 7. Instrumentation Amplifier CMRR
VS = ±2.5V
RL = 1k
5
3
1
–1
–3
–5
100k
1M
10M
100M
FREQUENCY (Hz)
1G
62537 F10
OUTPUT
800mV/DIV
0V
Figure 10. Frequency Response, Low Gain Stage
Using the LTC6253-7
INPUT
20mV/DIV
0V
50ns/DIV
62537 F08
Figure 8. Instrumentation Amplifier Transient Response
Using a Gain-of-7 Stable Op Amp to Achieve Low
Closed Loop Gains
Many applications may demand higher slew rates and
bandwidths associated with decompensated op amps
like the LTC6253-7, but with lower closed loop gains. Any
circuit using the LTC6253-7 will be stable as long as the
noise gain (gain for any noise referred to the inputs of the
operational amplifier) is 7 or higher. Figure 9 shows how
such a circuit can be implemented. The overall signal gain
is 1 + RF/RG, however the noise gain is 1 + RF/(RG||RC).
Figure 10 shows the measured frequency response of such
a circuit. The low frequency gain is 9.5dB (~3V/V) and is
achieved by making RF = 499Ω and RG = 249Ω. Resistor
RC is chosen to be 124Ω, leading to a noise gain of approximately 7V/V. The measured bandwidth of the circuit
is an impressive 147MHz. Figure 11 shows a 4VP-P output
at a frequency of 13MHz.
Note that for RG = ∞, RC = 82.5Ω, a closed loop gain of
+1 can be obtained, with a noise gain of 7V/V, and such a
circuit can be implemented with the LTC6253-7.
2V/DIV
20ns/DIV
62537 F11
Figure 11. Transient Response, Sinusoidal Input
62537f
16
For more information www.linear.com/LTC6253-7
LTC6253-7
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/product/LTC6253-7#packaging for the most recent package drawings.
MS Package
10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1661 Rev F)
0.889 ±0.127
(.035 ±.005)
5.10
(.201)
MIN
3.20 – 3.45
(.126 – .136)
3.00 ±0.102
(.118 ±.004)
(NOTE 3)
0.50
0.305 ±0.038
(.0197)
(.0120 ±.0015)
BSC
TYP
RECOMMENDED SOLDER PAD LAYOUT
0.254
(.010)
3.00 ±0.102
(.118 ±.004)
(NOTE 4)
4.90 ±0.152
(.193 ±.006)
DETAIL “A”
0.497 ±0.076
(.0196 ±.003)
REF
10 9 8 7 6
0° – 6° TYP
GAUGE PLANE
1 2 3 4 5
0.53 ±0.152
(.021 ±.006)
DETAIL “A”
0.18
(.007)
SEATING
PLANE
1.10
(.043)
MAX
0.86
(.034)
REF
0.17 – 0.27
(.007 – .011)
TYP
0.50
(.0197)
NOTE:
BSC
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
0.1016 ±0.0508
(.004 ±.002)
MSOP (MS) 0213 REV F
62537f
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 representation that the interconnection
of itsinformation
circuits as described
herein will not infringe on existing patent rights.
For more
www.linear.com/LTC6253-7
17
LTC6253-7
TYPICAL APPLICATION
Frequency Response
50
101V/V 100MHz Gain Block
–
100Ω
2.5V
–
100Ω
½ LTC6253-7
2.5V
½ LTC6253-7
+
VIN
40
909Ω
+
GAIN (dB)
909Ω
VOUT
30
20
10
–2.5V
–2.5V
62537 TA02a
0
100k
1M
10M
FREQUENCY (Hz)
100M 400M
62537 TA02b
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
Operational Amplifiers
LTC6252/LTC6253/
LTC6254
Single/Dual/Quad High Speed Rail-to-Rail Input and Output
Op Amps
720MHz, 3.5mA, 2.75nV/√Hz, 280V/µs, 0.35mV, Unity Gain Stable
LTC6268-10/
LTC6269-10
Single/Dual High Speed FET Input Op Amp
4GHz, 4nV/√Hz, ±3fA Input Bias Current
LT1818/LT1819
Single/Dual Wide Bandwidth, High Slew Rate Low Noise and
Distortion Op Amps
400MHz, 9mA, 6nV/√Hz, 2500V/µs, 1.5mV –85dBc at 5MHz
LT1806/LT1807
Single/Dual Low Noise Rail-to-Rail Input and Output Op Amps 325MHz, 13mA, 3.5nV/√Hz, 140V/µs, 550µV, 85mA Output Drive
LTC6246/LTC6247/
LTC6248
Single/Dual/Quad High Speed Rail-to-Rail Input and Output
Op Amps
180MHz, 1mA, 4.2nV/√Hz, 90V/µs, 0.5mV
LT6230/LT6231/
LT6232
Single/Dual/Quad Low Noise Rail-to-Rail Output Op Amps
215MHz, 3.5mA, 1.1nV/√Hz, 70V/µs, 350µV
LT6200/LT6201
Single/Dual Ultralow Noise Rail-to-Rail Input/Output Op Amps 165MHz, 20mA, 0.95nV/√Hz, 44V/µs, 1mV
LT6202/LT6203/
LT6204
Single/Dual/Quad Ultralow Noise Rail-to-Rail Op Amp
100MHz, 3mA, 1.9nV/√Hz, 25V/µs, 0.5mV
LT1468
16-Bit Accurate Precision High Speed Op Amp
90MHz, 3.9mA, 5nV/√Hz, 22V/µs, 175µV,
–96.5dB THD at 10VP-P, 100kHz
LT1801/LT1802
Dual/Quad Low Power High Speed Rail-to-Rail Input and
Output Op Amps
80MHz, 2mA, 8.5nV√Hz, 25V/µs, 350µV
LT1028
Ultralow Noise, Precision High Speed Op Amps
75MHz, 9.5mA, 0.85nV/√Hz, 11V/µs, 40µV
LTC6350
Low Noise Single-Ended to Differential Converter/ADC Driver
33MHz (–3dB), 4.8mA, 1.9nV/√Hz, 240ns Settling to 0.01% 8VP-P
ADCs
LTC2393-16
1Msps 16-Bit SAR ADC
94dB SNR
LTC2366
3Msps, 12-Bit ADC Serial I/O
72dB SNR, 7.8mW No Data Latency TSOT-23 Package
LTC2365
1Msps, 12-Bit ADC Serial I/O
73dB SNR, 7.8mW No Data Latency TSOT-23 Package
62537f
18 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
For more information www.linear.com/LTC6253-7
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com/LTC6253-7
LT 0216 • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2016
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