LT6210/LT6211
Single/Dual Programmable
Supply Current, R-R Output,
Current Feedback Amplifiers
FEATURES
s
DESCRIPTIO
s
s
s
s
s
s
s
s
APPLICATIO S
s
s
s
s
s
s
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load and ThinSOT are trademarks of Linear Technology Corporation.
Buffers
Video Amplifers
Cable Drivers
Mobile Communication
Low Power/Battery Applications
TYPICAL APPLICATIO
5V
V
IN
3
Small Signal Response vs Supply Current
9
I
S
= 3mA
GAIN AT LT6210 OUTPUT (dB)
Line Driver Configuration for Various Supply Currents
6
I
S
= 300µA
+
–
2
–5V
R
F
6
LT6210
1
5
R
SET
75Ω
75Ω
CABLE
V
OUT
75Ω
3
4
0
V
S
=
±5V
A
V
= 2
T
A
= 25°C
V
OUT
= 100mV
P-P
1
10
100
FREQUENCY (MHz)
–3
R
G
I
S
6mA
3mA
300µA
R
SET
20k
56k
1M
R
G
887Ω
1.1k
11k
R
F
887Ω
1.1k
11k
R
LOAD
150Ω
150Ω
1k
6210 TA01
–6
0.1
U
Programmable Supply Current and Bandwidth:
10MHz at 300µA per Amplifier up to
200MHz at 6mA per Amplifier
Rail-to-Rail Output:
0.05V to 2.85V on 3V Single Supply
High Slew Rate:
700V/µs
High Output Drive:
±75mA
Minimum Output Current
C-Load
TM
Op Amp Drives All Capacitive Loads
Low Distortion:
–70dB HD2 at 1MHz 2V
P-P
–75dB HD3 at 1MHz 2V
P-P
Fast Settling:
20ns 0.1% Settling for 2V Step
Excellent Video Performance Into 150Ω Load:
Differential Gain of 0.20%, Differential Phase of 0.10°
Wide Supply Range:
3V to 12V Single Supply
±1.5V
to
±6V
Dual Supplies
Small Size:
Low Profile (1mm) 6-Lead SOT-23 (ThinSOT
TM
),
3mm x 3mm x 0.8mm DFN and 10-Lead MSOP
Packages
The LT
®
6210/LT6211 are single/dual current feedback
amplifiers with externally programmable supply current
and bandwidth ranging from 10MHz at 300µA per ampli-
fier to 200MHz at 6mA per amplifier. They feature a low
distortion rail-to-rail output stage, 700V/µs slew rate and
a minimum output current drive of 75mA.
The LT6210/LT6211 operate on supplies as low as a single
3V and up to either 12V or
±6V.
The I
SET
pin allows for the
optimization of quiescent current for specific bandwidth,
distortion or slew rate requirements. Regardless of supply
voltage, the supply current is programmable from just
300µA to 6mA per amplifier with an external resistor or
current source.
The LT6210 is available in the low profile (1mm) 6-lead
SOT-23 package. The LT6211 is available in the 10-lead
MSOP and the 3mm x 3mm x 0.8mm DFN packages.
U
3
I
S
= 6mA
0
GAIN AT V
OUT
(dB)
U
–3
–6
–9
–12
1000
6210 TA01b
62101f
1
LT6210/LT6211
ABSOLUTE
AXI U
RATI GS
Total Supply Voltage (V
+
to V
–
) ........................... 13.2V
Input Current .................................................
±10mA
Output Current ..............................................
±80mA
Output Short-Circuit Duration (Note 2) ........... Indefinite
Operating Temperature Range (Note 3) ... –40°C to 85°C
Specified Temperature Range (Note 4) .... –40°C to 85°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
OUT 1
V
–
2
+IN 3
+
–
6 V
+
5 I
SET
4 –IN
OUT A
–IN A
+IN A
I
SET
A
V
–
1
2
3
4
5
–
+
–
+
S6 PACKAGE
6-LEAD PLASTIC SOT-23
T
JMAX
= 150°C,
θ
JA
= 230°C/ W (NOTE 5)
DD PACKAGE
10-LEAD (3mm
×
3mm) PLASTIC DFN
UNDERSIDE METAL CONNECTED TO V
–
(PCB CONNECTION OPTIONAL)
T
JMAX
= 125°C,
θ
JA
= 43°C/ W (NOTE 5)
ORDER PART
NUMBER
LT6210CS6
LT6210IS6
S6 PART
MARKING*
LTA3
ORDER PART
NUMBER
LT6211CDD
LT6211IDD
*The temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
2
U
U
W
W W
U
W
(Note 1)
Junction Temperature (Note 5) ............................ 150°C
Junction Temperature (DD Package) ................... 125°C
Storage Temperature Range ................. –65°C to 150°C
Storage Temperature Range
(DD Package) ................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)................. 300°C
TOP VIEW
10 V
+
9 OUT B
8 –IN B
7 +IN B
6 I
SET
B
TOP VIEW
OUT A
–IN A
+IN A
I
SET
A
V
–
1
2
3
4
5
–
+
–
+
10
9
8
7
6
V
+
OUT B
–IN B
+IN B
I
SET
B
MS PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 120°C/ W (NOTE 5)
DD PART
MARKING*
LBCD
ORDER PART
NUMBER
LT6211CMS
LT6211IMS
MS PART
MARKING
LTBBN
LTBBP
62101f
LT6210/LT6211
ELECTRICAL CHARACTERISTICS
over the specified operating temperature range, otherwise specifications are at T
A
= 25°C. For V
+
= 5V, V
–
= – 5V: R
SET
= 20k to ground,
A
V
= +2, R
F
= R
G
= 887Ω, R
L
= 150Ω; For V
+
= 3V, V
–
= 0V: R
SET
= 0Ω to V
–
, A
V
= +2, R
F
= 887Ω, R
G
= 887Ω to 1.5V, R
L
= 150Ω to 1.5V
unless otherwise specified.
SYMBOL PARAMETER
V
OS
I
IN
+
I
IN
–
e
n
+i
n
–i
n
R
IN
+
C
IN
+
V
INH
V
INL
V
OUTH
Input Offset Voltage
q
(I
S
= 6mA per Amplifier)
The
q
denotes specifications which apply
CONDITIONS
V
+
= 5V, V
–
= –5V, I
S
= 6mA
V
+
= 3V, V
–
= 0V, I
S
= 6mA
MIN
TYP
MAX MIN
TYP
MAX
–1
–3.5
q
UNITS
mV
mV
µA
µA
µA
µA
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
pF
V
±6
±9
±7
±9
±39
±55
–1
–3
2.5
6.5
4.5
25
0.3
1.8
1.7
2
2.2
0.8
2.65
2.6
2.85
2.75
0.05
0.1
46
±6.5
±10
±6.5
±8
±25
±40
Noninverting Input Current
Inverting Input Current
q
–13.5
f = 1kHz, R
F
= 887Ω,
R
G
= 46.4Ω, R
S
= 0Ω
f = 1kHz
f = 1kHz
V
IN
= V
+
– 1.2V to V
–
+ 1.2V
(Note 10)
(Note 10)
R
L
= 1k (Note 11)
R
L
= 150Ω (Note 11)
R
L
= 150Ω (Note 11)
R
L
= 1k (Note 11)
R
L
= 150Ω (Note 11)
R
L
= 150Ω (Note 11)
q
Input Noise Voltage Density
Input Noise Current Density
Input Noise Current Density
Noninverting Input Resistance
Input Voltage Range, High
Input Voltage Range, Low
Output Voltage Swing, High
6.5
4.5
25
0.5
3.8
2
2
q
q
Noninverting Input Capacitance f = 100kHz
4.2
–4.2
–3.8
4.8
4.6
–4.95
–4.8
1.2
V
V
V
V
q
4.4
4.2
V
OUTL
Output Voltage Swing, Low
q
q
–4.55
–4.4
0.3
0.35
V
V
V
dB
dB
µA/V
µA/V
dB
CMRR
–I
CMRR
PSRR
–I
PSRR
I
S
Common Mode Rejection Ratio V
IN
= V
+
– 1.2V to V
–
+ 1.2V
Inverting Input Current
Common Mode Rejection
Power Supply Rejection Ratio
Inverting Input Current
Power Supply Rejection
Supply Current per Amplifier
q
46
43
50
0.15
±1.5
±2
60
±7
±8
8.5
10
V
IN
= V
+
– 1.2V to V
–
+ 1.2V
q
0.2
85
2
5.8
±7
±8
8.3
9
V
S
=
±1.5V
to
±6V
(Note 6)
V
S
=
±1.5V
to
±6V
(Note 6)
q
q
60
85
2
6
µA/V
µA/V
mA
mA
62101f
3
LT6210/LT6211
ELECTRICAL CHARACTERISTICS
(I
S
= 6mA per Amplifier)
The
+
denotes specifications which apply
q
–
over the specified operating temperature range, otherwise specifications are at T
A
= 25°C. For V = 5V, V = – 5V: R
SET
= 20k to
ground, A
V
= +2, R
F
= R
G
= 887Ω, R
L
= 150Ω; For V
+
= 3V, V
–
= 0V: R
SET
= 0Ω to V
–
, A
V
= +2, R
F
= 887Ω, R
G
= 887Ω to 1.5V,
R
L
= 150Ω to 1.5V unless otherwise specified.
V
+
= 5V,
V
–
= –5V, I
S
= 6mA
SYMBOL PARAMETER
I
OUT
R
OL
SR
t
pd
BW
t
s
t
f
, t
r
dG
dP
HD2
HD3
Maximum Output Current
Transimpedance,
∆V
OUT
/∆I
IN
–
Slew Rate
Propagation Delay
–3dB Bandwidth
Settling Time
Differential Gain
Differential Phase
2nd Harmonic Distortion
3rd Harmonic Distortion
CONDITIONS
R
L
= 0Ω
(Notes 7, 11)
V
OUT
= V
+
– 1.2V to V
–
+ 1.2V
(Note 8)
50% V
IN
to 50% V
OUT
,
100mV
P-P
, Larger of t
pd
+, t
pd
–
<1dB Peaking, A
V
= 1
To 0.1% of V
FINAL
, V
STEP
= 2V
(Note 9)
(Note 9)
f = 1MHz, V
OUT
= 2V
P-P
f = 1MHz, V
OUT
= 2V
P-P
q
V
+
= 3V,
V
–
= 0V, I
S
= 6mA
TYP
MAX
UNITS
mA
115
200
2.4
120
25
3.5
0.35
0.20
–65
–75
kΩ
V/µs
ns
MHz
ns
ns
%
Deg
dBc
dBc
±45
MIN
±75
65
500
TYP
MAX MIN
115
700
1.5
200
20
2
0.20
0.10
–70
–75
65
Small-Signal Rise and Fall Time 10% to 90%, V
OUT
= 100mV
P-P
otherwise specifications are at T
A
= 25°C. For V
+
= 5V, V
–
= – 5V: R
SET
= 56k to ground, A
V
= +2, R
F
= R
G
= 1.1k, R
L
= 150Ω;
For V
+
= 3V, V
–
= 0V: R
SET
= 10k to V
–
, A
V
= +2, R
F
= 1.27k, R
G
= 1.27k to 1.5V, R
L
= 150Ω to 1.5V unless otherwise specified.
V
+
= 5V,
V
–
= –5V, I
S
= 3mA
SYMBOL PARAMETER
V
OS
I
IN
+
I
IN
–
e
n
+i
n
–i
n
R
IN
+
C
IN
+
V
INH
V
INL
V
OUTH
Input Offset Voltage
q
(I
S
= 3mA per Amplifier)
The
q
denotes specifications which apply over the specified operating temperature range,
V
+
= 3V,
V
–
= 0V, I
S
= 3mA
TYP
–1.5
–1.5
–3
7
1.5
15
1
1.8
2.5
2
2.1
0.9
2.6
2.55
2.9
2.8
0.05
0.1
46
1.2
MAX
±5.5
±8.5
±5
±7
±15
±20
UNITS
mV
mV
µA
µA
µA
µA
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
pF
V
V
V
V
V
0.3
0.35
V
V
V
dB
dB
µA/V
µA/V
62101f
CONDITIONS
MIN
TYP
–1
–1.5
MAX MIN
±5.5
±8.5
±5
±7
±36
±52
Noninverting Input Current
q
Inverting Input Current
q
–12
f = 1kHz, R
F
= 1.1k,
R
G
= 57.6Ω, R
S
= 0Ω
f = 1kHz
f = 1kHz
V
IN
= V
+
– 1.2V to V
–
+ 1.2V
(Note 10)
(Note 10)
R
L
= 1k (Note 11)
R
L
= 150Ω (Note 11)
R
L
= 150Ω (Note 11)
R
L
= 1k (Note 11)
R
L
= 150Ω (Note 11)
R
L
= 150Ω (Note 11)
q
Input Noise Voltage Density
Input Noise Current Density
Input Noise Current Density
Noninverting Input Resistance
Input Voltage Range, High
Input Voltage Range, Low
Output Voltage Swing, High
7
1.5
15
0.5
3.8
3
2
q
q
Noninverting Input Capacitance f = 100kHz
4.1
–4.1
–3.8
4.8
4.6
–4.95
–4.8
q
4.3
4.1
V
OUTL
Output Voltage Swing, Low
q
q
–4.55
–4.4
CMRR
–I
CMRR
Common Mode Rejection Ratio V
IN
= V
+
– 1.2V to V
–
+ 1.2V
Inverting Input Current
Common Mode Rejection
V
IN
= V
+
– 1.2V to V
–
+ 1.2V
q
46
43
50
0.3
±1.5
±2
0.4
4
LT6210/LT6211
ELECTRICAL CHARACTERISTICS
(I
S
= 3mA per Amplifier)
The
q
denotes specifications which apply
over the specified operating temperature range, otherwise specifications are at T
A
= 25°C. For V
+
= 5V, V
–
= – 5V: R
SET
= 56k to ground,
A
V
= +2, R
F
= R
G
= 1.1k, R
L
= 150Ω; For V
+
= 3V, V
–
= 0V: R
SET
= 10k to V
–
, A
V
= +2, R
F
= 1.27k, R
G
= 1.27k to 1.5V, R
L
= 150Ω to 1.5V
unless otherwise specified.
V
+
= 5V,
V
–
= –5V, I
S
= 3mA
SYMBOL PARAMETER
PSRR
–I
PSRR
I
S
I
OUT
R
OL
SR
t
pd
BW
t
s
t
f
, t
r
dG
dP
HD2
HD3
Power Supply Rejection Ratio
Inverting Input Current
Power Supply Rejection
Supply Current per Amplifier
q
V
+
= 3V,
V
–
= 0V, I
S
= 3mA
TYP
85
1.5
3
±45
±7
±8
4.1
4.4
MAX
UNITS
dB
µA/V
µA/V
mA
mA
mA
120
150
4.7
70
25
5.6
0.42
0.44
–60
–65
kΩ
V/µs
ns
MHz
ns
ns
%
Deg
dBc
dBc
60
CONDITIONS
V
S
=
±1.5V
to
±6V
(Note 6)
V
S
=
±1.5V
to
±6V
(Note 6)
q
q
MIN
60
TYP
85
1.5
3
MAX MIN
±7
±8
4.1
4.55
Maximum Output Current
Transimpedance,
∆V
OUT
/∆I
IN
–
Slew Rate
Propagation Delay
–3dB Bandwidth
Settling Time
Differential Gain
Differential Phase
2nd Harmonic Distortion
3rd Harmonic Distortion
R
L
= 0Ω
(Notes 7, 11)
V
OUT
= V
+
–1.2V to V
–
+1.2V
(Note 8)
50% V
IN
to 50% V
OUT
,
100mV
P-P,
Larger of t
pd
+, t
pd
–
<1dB Peaking, A
V
= 1
To 0.1% of V
FINAL
, V
STEP
= 2V
(Note 9)
(Note 9)
f = 1MHz, V
OUT
= 2V
P-P
f = 1MHz, V
OUT
= 2V
P-P
q
±70
65
450
120
600
3.1
100
20
3
0.35
0.30
–65
–65
65
Small-Signal Rise and Fall Time 10% to 90%, V
OUT
= 100mV
P-P
otherwise specifications are at T
A
= 25°C. For V
+
= 5V, V
–
= – 5V: R
SET
= 1M to ground, A
V
= +2, R
F
= R
G
= 11k, R
L
= 1k; For V
+
= 3V,
V
–
= 0V: R
SET
= 270k to V
–
, A
V
= +2, R
F
= 9.31k, R
G
= 9.31k to 1.5V, R
L
= 1k to 1.5V unless otherwise specified.
V
+
= 5V,
V
–
= –5V, I
S
= 300
µ
A
V
+
= 3V,
V
–
= 0V, I
S
= 300
µ
A
SYMBOL PARAMETER
V
OS
I
IN
+
I
IN
–
e
n
+i
n
–i
n
R
IN
+
C
IN
+
V
INH
V
INL
V
OUTH
V
OUTL
Input Offset Voltage
q
(I
S
= 300µA per Amplifier)
The
q
denotes specifications which apply over the specified operating temperature range,
CONDITIONS
MIN
TYP
–1
0.2
MAX MIN
±4.5
±8
±1
±2
±8.5
±11
TYP
–1.5
0.2
–0.5
13.5
0.75
5
MAX
±4.5
±8
±1
±1.5
±3
±4.5
UNITS
mV
mV
µA
µA
µA
µA
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
pF
V
Noninverting Input Current
q
Inverting Input Current
q
–3
f = 1kHz, R
F
= 13k, R
G
= 681Ω,
R
S
= 0Ω
f = 1kHz
f = 1kHz
V
IN
= V
+
– 1.2V to V
–
+ 1.2V
(Note 8)
(Note 10)
(Note 10)
R
L
= 1k (Note 11)
q
q
Input Noise Voltage Density
Input Noise Current Density
Input Noise Current Density
Noninverting Input Resistance
13.5
0.75
5
1
3.8
4.75
4.7
25
2
q
q
1
1.8
–3.8
2.75
2.7
–4.85
–4.8
15
2
2.1
0.9
2.85
0.05
0.15
0.2
1.2
Noninverting Input Capacitance f = 100kHz
Input Voltage Range, High
Input Voltage Range, Low
Output Voltage Swing, High
Output Voltage Swing, Low
4.1
–4.1
4.85
–4.95
V
V
V
V
V
62101f
R
L
= 1k (Note 11)
q
5
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