LT6211IMS [Linear]
Single/Dual Programmable Supply Current, R-R Output, Current Feedback Amplifiers; 单/双可编程电源电流,轨到轨输出,电流反馈放大器型号: | LT6211IMS |
厂家: | Linear |
描述: | Single/Dual Programmable Supply Current, R-R Output, Current Feedback Amplifiers |
文件: | 总16页 (文件大小:451K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LT6210/LT6211
Single/Dual Programmable
Supply Current, R-R Output,
Current Feedback Amplifiers
U
FEATURES
DESCRIPTIO
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.
■
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:
■
TheLT6210/LT6211operateonsuppliesaslowasasingle
3V and up to either 12V or ±6V. The ISET pin allows for the
optimization of quiescent current for specific bandwidth,
distortionorslewraterequirements. Regardlessofsupply
voltage, the supply current is programmable from just
300µA to 6mA per amplifier with an external resistor or
current source.
±75mA Minimum Output Current
C-LoadTM Op Amp Drives All Capacitive Loads
■
■
Low Distortion:
–70dB HD2 at 1MHz 2VP-P
–75dB HD3 at 1MHz 2VP-P
Fast Settling:
■
20ns 0.1% Settling for 2V Step
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.
■
Excellent Video Performance Into 150Ω Load:
Differential Gain of 0.20%, Differential Phase of 0.10°
■
Wide Supply Range:
3V to 12V Single Supply
U
±1.5V to ±6V Dual Supplies
APPLICATIO S
■
Small Size:
■
Buffers
Low Profile (1mm) 6-Lead SOT-23 (ThinSOTTM),
3mm x 3mm x 0.8mm DFN and 10-Lead MSOP
Packages
■
Video Amplifers
■
Cable Drivers
■
Mobile Communication
Low Power/Battery Applications
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
C-Load and ThinSOT are trademarks of Linear Technology Corporation.
U
TYPICAL APPLICATIO
Small Signal Response vs Supply Current
9
3
Line Driver Configuration for Various Supply Currents
I
S
= 3mA
5V
6
0
I
= 6mA
S
3
4
75Ω
6
V
IN
+
–
I
= 300µA
CABLE
S
75Ω
1
3
–3
–6
–9
–12
LT6210
V
OUT
5
75Ω
R
0
SET
2
–5V
R
V
A
= ±5V
= 2
S
V
A
F
–3
–6
T
= 25°C
I
R
SET
R
R
R
LOAD
S
G
F
R
G
V
= 100mV
OUT
P-P
6mA
3mA
300µA
20k
56k
1M
887Ω
1.1k
11k
887Ω
1.1k
11k
150Ω
150Ω
1k
0.1
1
10
100
1000
FREQUENCY (MHz)
6210 TA01
6210 TA01b
62101f
1
LT6210/LT6211
ABSOLUTE AXI U RATI GS
W W
U W
(Note 1)
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
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
U W
U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
+
OUT A
–IN A
+IN A
1
2
3
4
5
10
9
V
TOP VIEW
TOP VIEW
OUT B
–IN B
+IN B
+
–
+
OUT A
–IN A
+IN A
1
2
3
4
5
10
9
V
+
OUT 1
–
6 V
5 I
–
8
OUT B
–IN B
+IN B
–
+
+
V
2
–
+
8
SET
I
A
–
7
SET
+
I
A
7
6
–
SET
+IN 3
4 –IN
–
V
6
I
B
SET
V
I
B
SET
MS PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 120°C/ W (NOTE 5)
S6 PACKAGE
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
UNDERSIDE METAL CONNECTED TO V
(PCB CONNECTION OPTIONAL)
6-LEAD PLASTIC SOT-23
TJMAX = 150°C, θJA = 230°C/ W (NOTE 5)
–
T
JMAX = 125°C, θJA = 43°C/ W (NOTE 5)
ORDER PART
NUMBER
S6 PART
MARKING*
ORDER PART
NUMBER
ORDER PART
NUMBER
DD PART
MARKING*
MS PART
MARKING
LTA3
LBCD
LTBBN
LTBBP
LT6210CS6
LT6210IS6
LT6211CDD
LT6211IDD
LT6211CMS
LT6211IMS
*The temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
62101f
2
LT6210/LT6211
ELECTRICAL CHARACTERISTICS
(I = 6mA per Amplifier) The ● denotes specifications which apply
S
over the specified operating temperature range, otherwise specifications are at TA = 25°C. For V+ = 5V, V– = –5V: RSET = 20k to ground,
AV = +2, RF = RG = 887Ω, RL = 150Ω; For V+ = 3V, V– = 0V: RSET = 0Ω to V–, AV = +2, RF = 887Ω, RG = 887Ω to 1.5V, RL = 150Ω to 1.5V
unless otherwise specified.
+
–
+
–
V = 5V, V = –5V, I = 6mA
V = 3V, V = 0V, I = 6mA
S
S
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX MIN
TYP
MAX UNITS
V
Input Offset Voltage
–1
±6
±9
–1
±6.5
±10
mV
mV
OS
●
●
●
I +
IN
Noninverting Input Current
Inverting Input Current
Input Noise Voltage Density
–3.5
–13.5
6.5
±7
±9
–3
2.5
6.5
±6.5
±8
µA
µA
I
–
±39
±55
±25
±40
µA
µA
IN
e
n
f = 1kHz, R = 887Ω,
nV/√Hz
F
R = 46.4Ω, R = 0Ω
G
S
+i
–i
Input Noise Current Density
Input Noise Current Density
Noninverting Input Resistance
f = 1kHz
4.5
25
4.5
25
1.7
2
pA/√Hz
pA/√Hz
MΩ
pF
n
f = 1kHz
n
+
–
R +
IN
V
IN
= V – 1.2V to V + 1.2V
●
0.5
3.8
2
0.3
1.8
C +
IN
Noninverting Input Capacitance f = 100kHz
2
V
V
V
Input Voltage Range, High
Input Voltage Range, Low
Output Voltage Swing, High
(Note 10)
(Note 10)
●
●
4.2
–4.2
2.2
0.8
V
INH
–3.8
1.2
V
INL
R = 1k (Note 11)
4.8
4.6
2.85
2.75
V
V
V
OUTH
L
R = 150Ω (Note 11)
4.4
4.2
2.65
2.6
L
R = 150Ω (Note 11)
●
L
V
Output Voltage Swing, Low
R = 1k (Note 11)
L
–4.95
–4.8
0.05
0.1
V
V
V
OUTL
L
R = 150Ω (Note 11)
–4.55
–4.4
0.3
R = 150Ω (Note 11)
●
●
0.35
L
+
–
CMRR
–I
Common Mode Rejection Ratio
V
IN
V
IN
= V – 1.2V to V + 1.2V
46
43
50
46
dB
dB
+
–
Inverting Input Current
Common Mode Rejection
= V – 1.2V to V + 1.2V
0.15
±1.5
±2
0.2
µA/V
µA/V
CMRR
●
●
PSRR
–I
Power Supply Rejection Ratio
V = ±1.5V to ±6V (Note 6)
S
60
85
2
60
85
2
dB
Inverting Input Current
Power Supply Rejection
V = ±1.5V to ±6V (Note 6)
S
±7
±8
±7
±8
µA/V
µA/V
PSRR
●
●
I
Supply Current per Amplifier
6
8.5
10
5.8
8.3
9
mA
mA
S
62101f
3
LT6210/LT6211
ELECTRICAL CHARACTERISTICS (I = 6mA per Amplifier) The ● denotes specifications which apply
S
over the specified operating temperature range, otherwise specifications are at TA = 25°C. For V+ = 5V, V– = –5V: RSET = 20k to
ground, AV = +2, RF = RG = 887Ω, RL = 150Ω; For V+ = 3V, V– = 0V: RSET = 0Ω to V–, AV = +2, RF = 887Ω, RG = 887Ω to 1.5V,
RL = 150Ω to 1.5V unless otherwise specified.
V+ = 5V, V– = –5V, I = 6mA
V+ = 3V, V– = 0V, I = 6mA
S
S
SYMBOL PARAMETER
Maximum Output Current
CONDITIONS
MIN
TYP
MAX MIN
TYP
MAX UNITS
I
R = 0Ω
●
±75
±45
mA
OUT
L
(Notes 7, 11)
+
–
R
Transimpedance, ∆V /∆I
–
V
= V – 1.2V to V + 1.2V
65
115
700
1.5
65
115
200
2.4
kΩ
V/µs
ns
OL
OUT IN
OUT
SR
Slew Rate
(Note 8)
50% V to 50% V
500
t
Propagation Delay
,
OUT
pd
IN
100mV , Larger of t +, t –
pd
P-P
pd
BW
–3dB Bandwidth
Settling Time
<1dB Peaking, A = 1
200
20
120
25
MHz
ns
V
t
To 0.1% of V
, V
= 2V
s
FINAL STEP
t , t
Small-Signal Rise and Fall Time 10% to 90%, V
= 100mV
P-P
2
3.5
ns
f
r
OUT
dG
dP
Differential Gain
(Note 9)
0.20
0.10
–70
–75
0.35
0.20
–65
–75
%
Differential Phase
(Note 9)
Deg
dBc
dBc
HD2
HD3
2nd Harmonic Distortion
3rd Harmonic Distortion
f = 1MHz, V
f = 1MHz, V
= 2V
= 2V
OUT
OUT
P-P
P-P
(I = 3mA per Amplifier) The ● denotes specifications which apply over the specified operating temperature range,
S
otherwise specifications are at TA = 25°C. For V+ = 5V, V– = –5V: RSET = 56k to ground, AV = +2, RF = RG = 1.1k, RL = 150Ω;
For V+ = 3V, V– = 0V: RSET = 10k to V–, AV = +2, RF = 1.27k, RG = 1.27k to 1.5V, RL = 150Ω to 1.5V unless otherwise specified.
V+ = 5V, V– = –5V, I = 3mA
V+ = 3V, V– = 0V, I = 3mA
S
S
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX MIN
TYP
MAX UNITS
V
Input Offset Voltage
–1
±5.5
±8.5
–1.5
±5.5
±8.5
mV
mV
OS
●
●
●
I +
IN
Noninverting Input Current
Inverting Input Current
Input Noise Voltage Density
–1.5
–12
7
±5
±7
–1.5
–3
7
±5
±7
µA
µA
I
–
±36
±52
±15
±20
µA
µA
IN
e
f = 1kHz, R = 1.1k,
G
nV/√Hz
n
F
R
= 57.6Ω, R = 0Ω
S
+i
–i
Input Noise Current Density
Input Noise Current Density
Noninverting Input Resistance
f = 1kHz
1.5
15
1.5
15
2.5
2
pA/√Hz
pA/√Hz
MΩ
pF
n
f = 1kHz
n
+
–
R +
IN
V
= V – 1.2V to V + 1.2V
●
0.5
3.8
3
1
IN
C +
IN
Noninverting Input Capacitance f = 100kHz
2
V
V
V
Input Voltage Range, High
Input Voltage Range, Low
Output Voltage Swing, High
(Note 10)
(Note 10)
●
●
4.1
–4.1
1.8
2.1
0.9
V
INH
–3.8
1.2
V
INL
R = 1k (Note 11)
4.8
4.6
2.9
2.8
V
V
V
OUTH
L
R = 150Ω (Note 11)
4.3
4.1
2.6
2.55
L
R = 150Ω (Note 11)
●
L
V
Output Voltage Swing, Low
R = 1k (Note 11)
L
–4.95
–4.8
0.05
0.1
V
V
V
OUTL
L
R = 150Ω (Note 11)
–4.55
–4.4
0.3
0.35
R = 150Ω (Note 11)
●
●
●
L
+
–
CMRR
–I
Common Mode Rejection Ratio
V
= V – 1.2V to V + 1.2V
46
43
50
46
dB
dB
IN
IN
+
–
Inverting Input Current
Common Mode Rejection
V
= V – 1.2V to V + 1.2V
0.3
±1.5
±2
0.4
µA/V
µA/V
CMRR
62101f
4
LT6210/LT6211
ELECTRICAL CHARACTERISTICS
(I = 3mA per Amplifier) The ● denotes specifications which apply
S
over the specified operating temperature range, otherwise specifications are at TA = 25°C. For V+ = 5V, V– = –5V: RSET = 56k to ground,
AV = +2, RF = RG = 1.1k, RL = 150Ω; For V+ = 3V, V– = 0V: RSET = 10k to V–, AV = +2, RF = 1.27k, RG = 1.27k to 1.5V, RL = 150Ω to 1.5V
unless otherwise specified.
V+ = 5V, V– = –5V, I = 3mA V+ = 3V, V– = 0V, I = 3mA
S
S
SYMBOL PARAMETER
PSRR Power Supply Rejection Ratio
–I
CONDITIONS
V = ±1.5V to ±6V (Note 6)
MIN
TYP
MAX MIN
TYP
MAX UNITS
●
●
60
85
60
85
dB
S
Inverting Input Current
Power Supply Rejection
V = ±1.5V to ±6V (Note 6)
S
1.5
±7
±8
1.5
±7
±8
µA/V
µA/V
PSRR
I
I
Supply Current per Amplifier
Maximum Output Current
3
4.1
4.55
3
4.1
4.4
mA
mA
S
●
●
R = 0Ω
±70
±45
mA
OUT
L
(Notes 7, 11)
+
–
R
Transimpedance, ∆V /∆I
–
V
= V –1.2V to V +1.2V
65
120
600
3.1
65
120
150
4.7
kΩ
V/µs
ns
OL
OUT IN
OUT
SR
Slew Rate
(Note 8)
50% V to 50% V
450
t
Propagation Delay
,
OUT
pd
IN
100mV
Larger of t +, t –
P-P,
pd pd
BW
–3dB Bandwidth
Settling Time
<1dB Peaking, A = 1
100
20
70
25
MHz
ns
V
t
To 0.1% of V
, V
= 2V
s
FINAL STEP
t , t
Small-Signal Rise and Fall Time 10% to 90%, V
= 100mV
P-P
3
5.6
ns
f
r
OUT
dG
dP
Differential Gain
(Note 9)
0.35
0.30
–65
–65
0.42
0.44
–60
–65
%
Differential Phase
(Note 9)
Deg
dBc
dBc
HD2
HD3
2nd Harmonic Distortion
3rd Harmonic Distortion
f = 1MHz, V
f = 1MHz, V
= 2V
= 2V
OUT
OUT
P-P
P-P
(I = 300µA per Amplifier) The ● denotes specifications which apply over the specified operating temperature range,
S
otherwise specifications are at TA = 25°C. For V+ = 5V, V– = –5V: RSET = 1M to ground, AV = +2, RF = RG = 11k, RL = 1k; For V+ = 3V,
V– = 0V: RSET = 270k to V–, AV = +2, RF = 9.31k, RG = 9.31k to 1.5V, RL = 1k to 1.5V unless otherwise specified.
V+ = 5V, V– = –5V, I = 300
µ
A
V+ = 3V, V– = 0V, I = 300
µ
A
S
S
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX MIN
TYP
MAX UNITS
V
Input Offset Voltage
–1
±4.5
±8
–1.5
±4.5
±8
mV
mV
OS
●
●
●
I +
IN
Noninverting Input Current
Inverting Input Current
Input Noise Voltage Density
0.2
–3
±1
±2
0.2
±1
±1.5
µA
µA
I
–
±8.5
±11
–0.5
13.5
±3
±4.5
µA
µA
IN
e
f = 1kHz, R = 13k, R = 681Ω,
S
13.5
nV/√Hz
n
F
G
R = 0Ω
+i
–i
Input Noise Current Density
Input Noise Current Density
Noninverting Input Resistance
f = 1kHz
0.75
5
0.75
5
pA/√Hz
pA/√Hz
n
f = 1kHz
n
+
–
R +
IN
V
= V – 1.2V to V + 1.2V
IN
(Note 8)
●
1
25
2
1
15
2
MΩ
pF
V
C +
IN
Noninverting Input Capacitance f = 100kHz
V
V
V
Input Voltage Range, High
Input Voltage Range, Low
Output Voltage Swing, High
(Note 10)
(Note 10)
●
●
3.8
4.1
–4.1
4.85
1.8
2.1
0.9
2.85
INH
–3.8
1.2
V
INL
R = 1k (Note 11)
L
4.75
4.7
2.75
2.7
V
V
OUTH
●
●
V
Output Voltage Swing, Low
R = 1k (Note 11)
L
–4.95
–4.85
–4.8
0.05
0.15
0.2
V
V
OUTL
62101f
5
LT6210/LT6211
ELECTRICAL CHARACTERISTICS
(I = 300µA per Amplifier) The ● denotes specifications which
S
apply over the specified operating temperature range, otherwise specifications are at TA = 25°C. For V+ = 5V, V– = –5V: RSET = 1M to
ground, AV = +2, RF = RG = 11k, RL = 1k; For V+ = 3V, V– = 0V: RSET = 270k to V–, AV = +2, RF = 9.31k, RG = 9.31k to 1.5V, RL = 1k to
1.5V unless otherwise specified.
V+ = 5V, V– = –5V, I = 300
µA
V+ = 3V, V– = 0V, I = 300
µA
S
S
SYMBOL PARAMETER
CMRR Common Mode Rejection Ratio
CONDITIONS
MIN
TYP
MAX MIN
TYP
MAX UNITS
+
–
V
= V – 1.2V to V + 1.2V
46
43
50
46
dB
dB
IN
●
+
–
–I
Inverting Input Current
Common Mode Rejection
V
= V – 1.2V to V + 1.2V
0.15
±1.5
±2
0.2
µA/V
µA/V
CMRR
IN
●
●
PSRR
–I
Power Supply Rejection Ratio
V = ±1.5V to ±6V (Note 6)
60
85
60
85
dB
S
Inverting Input Current
Power Supply Rejection
V = ±1.5V to ±6V (Note 6)
0.4
±2.2
±4
0.4
±2.2
±4
µA/V
µA/V
PSRR
S
●
I
I
Supply Current per Amplifier
0.3
0.525
0.6
0.3
0.38
0.43
mA
mA
S
●
●
Maximum Output Current
R = 0Ω
(Notes 7, 11)
±30
±10
mA
OUT
L
+
–
R
Transimpedance, ∆V /∆I
–
V
= V – 1.2V to V + 1.2V
300
120
660
170
30
65
120
20
kΩ
V/µs
ns
OL
OUT IN
OUT
SR
Slew Rate
(Note 8)
50% V to 50% V ,
OUT
t
Propagation Delay
50
pd
IN
100mV , Larger of t +, t –
P-P
pd
pd
BW
–3dB Bandwidth
Settling Time
<1dB Peaking, A = 1
10
200
40
7.5
300
50
MHz
ns
V
t
To 0.1% of V
, V
= 2V
s
FINAL STEP
t , t
Small-Signal Rise and Fall Time 10% to 90%, V
= 100mV
P-P
ns
f
r
OUT
HD2
HD3
2nd Harmonic Distortion
3rd Harmonic Distortion
f = 1MHz, V
f = 1MHz, V
= 2V
= 2V
–40
–45
–45
–45
dBc
dBc
OUT
OUT
P-P
P-P
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
T is calculated from the ambient temperature T and the power dissipa-
J A
tion P according to the following formula:
D
Note 2: As long as output current and junction temperature are kept below
the absolute maximum ratings, no damage to the part will occur.
Depending on the supply voltage, a heat sink may be required.
Note 3: The LT6210C/LT6211C is guaranteed functional over the operating
temperature range of –40°C to 85°C.
Note 4: The LT6210C/LT6211C is guaranteed to meet specified perfor-
mance from 0°C to 70°C. The LT6210C/LT6211C is designed, character-
ized and expected to meet specified performance from –40°C and 85°C
but is not tested or QA sampled at these temperatures. The LT6210I/
T = T + (P • θ )
J A D JA
The maximum power dissipation can be calculated by:
2
P
= (V • I
) + (V /2) /R
D(MAX)
S
S(MAX)
S
LOAD
Note 6: For PSRR and –I
constant, maintaining a consistent LT6210/LT6211 quiescent bias point. A
graph of PSRR vs Frequency is included in the Typical Performance
Characteristics showing +PSRR and –PSRR with R connecting I to
testing, the current into the I pin is
PSRR
SET
SET
SET
ground.
Note 7: While the LT6210 and LT6211 circuitry is capable of significant
output current even beyond the levels specified, sustained short-circuit
current exceeding the Absolute Maximum Rating of ±80mA may
permanently damage the device.
Note 8: This parameter is guaranteed to meet specified performance
through design and characterization. It is not production tested.
Note 9: Differential gain and phase are measured using a Tektronix
TSG120YC/NTSC signal generator and a Tektronix 1780R Video Measure-
ment Set. The resolution of this equipment is 0.1% and 0.1°. Five identical
amplifier stages were cascaded giving an effective resolution of 0.02% and
0.02°.
Note 10: Input voltage range on ±5V dual supplies is guaranteed by
CMRR. On 3V single supply it is guaranteed by design and by correlation
to the ±5V input voltage range limits.
LT6211I is guaranteed to meet specified performance from –40°C to 85°C.
–
Note 5: The LT6210 with no metal connected to the V pin has a θ of
JA
230°C/W, however, thermal resistances vary depending upon the amount
of PC board metal attached to Pin 2 of the device. With the LT6210
2
mounted on a 2500mm 3/32" FR-4 board covered with 2oz copper on
2
both sides and with just 20mm of copper attached to Pin 2, θ drops to
JA
160°C/W. Thermal performance can be improved even further by using a
4-layer board or by attaching more metal area to Pin 2.
2
Thermal resistance of the LT6211 in MSOP-10 is specified for a 2500mm
3/32" FR-4 board covered with 2oz copper on both sides and with 100mm
of copper attached to Pin 5. Its performance can also be increased with
additional copper much like the LT6210.
2
To achieve the specified θ of 43°C/W for the LT6211 DFN-10, the
JA
exposed pad must be soldered to the PCB. In this package, θ will benefit
JA
Note 11: This parameter is tested by forcing a 50mV differential voltage
between the inverting and noninverting inputs.
from increased copper area attached to the exposed pad.
62101f
6
LT6210/LT6211
W U
TYPICAL AC PERFOR A CE
I (mA) per
Amplifier
SMALL-SIGNAL
R (Ω) – 3dB BW, <1dB PEAKING (MHz)
SMALL-SIGNAL
±0.1dB BW (MHz)
S
V (V)
S
R
(Ω)
A
V
R (Ω)
L
R (Ω)
F
SET
G
±5
±5
6
6
20k
1
150
150
150
150
150
150
1k
1200
887
—
887
698
—
200
160
140
100
100
80
30
30
20
15
15
15
2
20k
20k
56k
56k
56k
1MEG
1MEG
1MEG
0
2
–1
1
±5
6
698
±5
3
1690
1100
1200
13.7k
11k
±5
3
2
1100
1200
—
±5
3
–1
1
±5
0.3
0.3
0.3
6
10
±5
2
1k
11k
10k
—
10
2
±5
–1
1
1k
10k
10
1.8
20
20
20
15
15
15
2
3, 0
3, 0
3, 0
3, 0
3, 0
3, 0
3, 0
3, 0
3, 0
150
150
150
150
150
150
1k
1100
887
120
100
100
70
6
0
2
887
806
—
6
0
–1
1
806
3
10k
10k
10k
270k
270k
270k
1540
1270
1200
13k
3
2
1270
1200
—
60
3
–1
1
60
0.3
0.3
0.3
7.5
7
2
1k
9.31k
10k
9.31k
10k
1.5
1.5
–1
1k
7
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current per Amplifier vs
Temperature
Supply Current per Amplifier vs
Temperature
Supply Current per Amplifier vs
Temperature
4.00
3.75
3.50
3.25
3.00
2.75
2.50
2.25
2.00
7.5
7.0
6.5
6.0
5.5
5.0
4.5
400
380
360
340
320
300
280
260
240
220
200
R
= ∞
R
= ∞
R = ∞
L
L
L
V
= ±5V
S
V
= ±5V
S
V
= ±1.5V
R
= 1M TO GND
S
SET
R
= 20k TO GND
–
SET
R
= 10k TO V
SET
V
= ±1.5V
SET
S
V
= ±1.5V
SET
V
= ±5V
SET
S
–
S
–
R
= 0Ω TO V
R
= 270k TO V
R
= 56k TO GND
–25
0
25
50
75
100
125
–50
50
100 125
–50 –25
0
25
75
–50
0
25
50
75 100 125
–25
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
6210 G02
6210 G01
6210 G03
62101f
7
LT6210/LT6211
TYPICAL PERFOR A CE CHARACTERISTICS
U W
(Supply Current Is Measured Per Amplifier)
Input Noise Spectral Density
(IS = 6mA per Amplifier)
Input Noise Spectral Density
(IS = 3mA per Amplifier)
Input Noise Spectral Density
(IS = 300µA per Amplifier)
100
100
10
1
100
10
1
V
= ±5V
= 150Ω
= 25°C
V
= ±5V
= 150Ω
= 25°C
V
S
= ±5V
= 1k
= 25°C
S
L
S
L
R
T
R
T
R
T
L
A
–i
n
A
A
–i
n
e
n
+i
n
e
n
e
n
10
1
–i
n
+i
n
+i
n
0.1
0.1
0.1
0.001
0.001
0.01
0.1
1
10
100
0.001
0.01
0.1
1
10
100
0.01
0.1
1
10
100
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
62101GO4
62101GO5
62101GO6
Input Offset Voltage vs Input
Common Mode Voltage
Input Common Mode Range vs
Temperature
Input Common Mode Range vs
Temperature
20
15
5.0
4.5
4.0
1.5
1.0
I
= 300µA
S
F
I
= 300µA
S
F
R = 13.7k
R = 13k
R
= 1k
L
R
= 1k
L
10
I
= 300µA
S
F
R = 13.7k
0.5
5
R = 1k
L
I
= 6mA
I
= 3mA
I
= 6mA
I = 3mA
S
S
F
S
F
S
F
I
= 3mA
S
F
R = 1200Ω
R = 1690Ω
R = 1100Ω
R = 1540Ω
F
0
0
R = 1690Ω
R
= 150Ω
R
= 150Ω
R
= 150Ω
R = 150Ω
L
L
L
L
R
= 150Ω
L
–5
–4.0
–4.5
–5.0
–0.5
–1.0
–1.5
–10
–15
–20
V
A
T
= ±5V
= 1
V
A
= ±5V
V
A
= ±1.5V
S
V
A
S
V
S
V
I
= 300µA
I
= 300µA
I
= 6mA
S
F
S
F
S
F
= 1
= 1
R = 13.7k
R = 13k
R = 1200Ω
= 25°C
CMRR > 48dB
TYPICAL PART
CMRR >46dB
R
= 1k
R
= 1k
R
= 150Ω
L
L
L
TYPICAL PART
TYPICAL PART
–5 –4 –3 –2 –1
0
1
2
3
4
5
–50 –25
0
25
50
75
100 125
–50 –25
0
25
50
75
100 125
INPUT COMMON MODE VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
62101 G07
62101 G08
62101 G09
Output Voltage Swing vs
Temperature
Output Voltage Swing vs
Temperature
Output Voltage Swing vs ILOAD
5.0
4.8
4.6
4.4
1.5
1.4
1.3
1.2
1.1
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
OUTPUT HIGH
OUTPUT HIGH
I
S
I
S
= 3mA
= 6mA
I
= 6mA
L
S
I
= 300µA
L
S
I
= 300µA
L
S
R
R
= 1k
I
= 6mA
L
R
= 1k
I
= 6mA
L
S
S
= 1k
R
= 150Ω
R
= 100Ω
V
CM
∆V = 50mV
= ±5V
S
V
V
= ±1.5V
S
V
= 0V
= 0V
I
S
= 300µA
CM
–1.1
–1.2
–1.3
–1.4
–1.5
OS
∆V = 50mV
OS
–4.4
–4.6
–4.8
–5.0
I
= 6mA
L
S
I
= 6mA
L
S
R
= 150Ω
R
= 100Ω
I
= 300µA
= 1k
S
L
I
= 300µA
I
= 6mA
= 1k
S
R
S
L
V
V
= ±5V
R
S
= 1k
–25
R
L
= 0V
CM
∆V = 50mV
OS
OUTPUT LOW
OUTPUT LOW
25 50
TEMPERATURE (°C)
T
= 25°C
A
–25
0
25
50
75
125
0
75
125
–50
100
–50
100
20
LOAD CURRENT (mA)
0
10
30
40
50
60 70
TEMPERATURE (°C)
6210 G10
6210 G11
6210 G12
62101f
8
LT6210/LT6211
U W
TYPICAL PERFOR A CE CHARACTERISTICS
(Supply Current Is Measured Per Amplifier)
Output Voltage Swing vs ILOAD
Output Voltage Swing vs ILOAD
Output Voltage Swing vs ILOAD
–3.0
–3.2
–3.4
–3.6
–3.8
–4.0
–4.2
–4.4
–4.6
–4.8
–5.0
V
V
= ±5V
V
V
= ±1.5V
S
S
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–0.1
–0.3
–0.5
–0.7
–0.9
–1.1
–1.3
–1.5
= 0V
= 0V
CM
CM
∆V = 50mV
I
S
I
S
= 3mA
= 6mA
∆V = 50mV
OS
OS
T
= 25°C
T
= 25°C
A
A
I
S
= 300µA
I
S
= 300µA
V
V
= ±1.5V
S
I
S
= 300µA
= 0V
CM
I
S
I
S
= 3mA
= 6mA
∆V = 50mV
I
= 3mA
= 6mA
OS
S
S
T
= 25°C
I
A
20
LOAD CURRENT (mA)
0
10
30
40
50
60 70
20
LOAD CURRENT (mA)
40
50
60 70
0
10
30
20
0
10
30
40
50
60 70
LOAD CURRENT (mA)
6210 G14
6210 G13
6210 G15
CMRR and PSRR vs Frequency
(IS = 6mA per Amplifier)
CMRR and PSRR vs Frequency
(IS = 3mA per Amplifier)
CMRR and PSRR vs Frequency
(IS = 300µA per Amplifier)
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
V
= ±5V
= 150Ω
= 25°C
V
= ±5V
= 150Ω
= 25°C
V
S
= ±5V
= 1k
= 25°C
S
L
S
L
–PSRR
–PSRR
+PSRR
R
–PSRR
+PSRR
R
R
L
T
T
A
T
A
A
+PSRR
CMRR
CMRR
CMRR
0.001
0.01
0.1
1
10
100
0.001
0.01
0.1
1
10
100
0.001
0.01
0.1
1
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
6210 G18
6210 G16
6210 G17
Frequency Response vs Closed
Loop Gain (IS = 300µA per
Amplifier)
Frequency Response vs Closed
Loop Gain (IS = 6mA per Amplifier)
Frequency Response vs Closed
Loop Gain (IS = 3mA per Amplifier)
9
6
9
6
9
6
A
V
= 2
A
V
= 2
A
V
= 2
R = R = 1100Ω
R = R = 887Ω
R = R = 11k
F
G
F
G
F
G
3
3
3
A
= 1
V
F
R = 13.7k
0
0
0
A
= 1
V
A
= –1
V
R = 1.2k
F
A
G
= –1
V
V
= ±5V
= 150Ω
= 25°C
V
= ±5V
= 150Ω
= 25°C
V
= ±5V
= 150Ω
= 25°C
S
L
S
L
R = R = 1200Ω
S
L
F
G
R = R = 10k
–3
–3
–3
F
R
T
R
T
R
T
A
V
= –1
A
A
A
= 1
A
V
R = R = 698Ω
F
G
V
OUT
= 100mV
V
OUT
= 100mV
V
OUT
= 100mV
P-P
P-P
R = 1690Ω
P-P
F
–6
–6
–6
0.1
1
10
100
1000
0.1
1
10
100
1000
0.1
1
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
6210 G19
6210 G20
6210 G21
62101f
9
LT6210/LT6211
U W
(Supply Current Is Measured Per Amplifier)
TYPICAL PERFOR A CE CHARACTERISTICS
2nd and 3rd Harmonic Distortion vs
Frequency (IS = 6mA per Amplifier)
2nd and 3rd Harmonic Distortion vs
Frequency (IS = 300µA per Amplifier)
2nd and 3rd Harmonic Distortion vs
Frequency (IS = 3mA per Amplifier)
0
–10
–20
–30
– 40
–50
–60
–70
0
–10
–20
–30
– 40
–50
–60
–70
0
–10
–20
–30
– 40
–50
–60
–70
V
= ±5V
G
V
= ±5V
G
V
= ±5V
S
S
F
S
F
R
V
= R = 11k
R
V
= R = 887Ω
R
= R = 1.1k
F G
= 2V
= 2V
V
R
= 2V
P-P
OUT
P-P
OUT
P-P
OUT
L
R
= 1k
R
= 150Ω
= 150Ω
L
L
T
= 25°C
T
A
= 25°C
T
A
= 25°C
A
HD2
HD2
HD3
HD2
HD3
HD3
–80
–90
–100
–80
–90
–100
–80
–90
–100
0.01
0.1
1
10
0.01
0.1
1
10
100
0.01
0.1
1
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
6210 G24
6210 G22
6210 G23
Maximum Undistorted Output
Sinusoid vs Frequency
LT6211 Channel Separation
vs Frequency
Output Impedance vs Frequency
10
9
8
7
6
5
4
3
2
1
0
120
100
80
60
40
20
0
1000
100
V
S
= ±5V
V
A
T
= ±5V
= 2
= 25°C
S
V
A
HD2, HD3 <–40dB
A
= 2
V
T
A
= 25°C
I
R
R
= 300µA
S
F
R
= ∞
L
I
R
R
= 6mA
= R = 11k
S
F
G
= R = 887Ω
= 1k
G
L
= 150Ω
L
10
1
R = 150Ω
L
I
R
R
= 6mA
S
F
= R = 887Ω
G
I
R
R
= 300µA
S
F
= 150Ω
V
I
= ±5V
L
= R = 11k
S
G
= 6mA
= 1k
S
L
R
= R = 887Ω
F
G
T
A
= 25°C
0.1
0.1
1
10
100
0.1
10
FREQUENCY (MHz)
500
0.1
1
10
FREQUENCY (MHz)
100
500
1
100
FREQUENCY (MHz)
6210 G26
6210 G27
6210 G25
Maximum Capacitive Load vs
Feedback Resistor
Maximum Capacitive Load vs
Output Series Resistor
Overshoot vs Capacitive Load
50
45
40
70
60
50
40
30
20
10
0
10000
1000
100
V
= ±5V
V = ±5V
S
S
OVERSHOOT < 10%
= 100mV
AC PEAKING < 3dB
V = 100mV
I
R
R
= 3mA
S
F
V
S
OUT
= 6mA
P-P
OUT
I = 6mA
S
P-P
= R = 1100Ω
G
I
= 150Ω
L
R
R
T
= R = 887Ω
R
R
T
= R
F
F
L
A
G
G
L
35
30
I
R
R
= 300µA
= ∞
= 150Ω
= 25°C
S
F
= R = 11k
= 25°C
G
A
= 1k
L
25
20
15
10
5
V
A
V
= ±5V
S
V
I
R
R
= 6mA
= 2
S
F
= R = 887Ω
= 100mV
OUT
= 25°C
A
G
P-P
10000
= 150Ω
T
L
0
10
10
100
CAPACITIVE LOAD (pF)
1000
10
100
1000
800 1000 1200 1400 1600 1800 2000
CAPACITIVE LOAD (pF)
FEEDBACK RESISTANCE (Ω)
6210 G30
6210 G29
6210 G28
62101f
10
LT6210/LT6211
U W
(Supply Current Is Measured Per Amplifier)
TYPICAL PERFOR A CE CHARACTERISTICS
–3dB Small-Signal Bandwidth
vs Supply Current
1MHz 2nd and 3rd Harmonic
Distortion vs Supply Current
Slew Rate vs Supply Current
1000
100
10
–30
–40
–50
–60
–70
–80
1000
900
800
700
600
500
400
300
200
100
0
A
V
A
= 2
OUT
= 25°C
V
A
V
= ±5V
V
A
V
= ±5V
V
S
V
S
V
= 100mV
= 2
= 2
P-P
T
= 7V
= 2V
OUT
P-P
OUT
P-P
T
= 25°C
T = 25°C
A
A
V
= ±5V
S
RISING
EDGE RATE
HD2
V
= ±1.5V
S
FALLING
EDGE RATE
HD3
1
10
0.1
1
SUPPLY CURRENT PER AMPLIFIER (mA)
10
0.1
1
0.1
1
10
SUPPLY CURRENT PER AMPLIFIER (mA)
SUPPLY CURRENT PER AMPLIFIER (mA)
62101 G32
62101 G31
62101 G33
Small-Signal Transient Response
(IS = 300µA per Amplifier)
Small-Signal Transient Response
(IS = 6mA per Amplifier)
Small-Signal Transient Response
(IS = 3mA per Amplifier)
V
V
R
R
R
= ±5V
V
V
R
R
R
= ±5V
V
V
R
R
R
= ±5V
TIME (10ns/DIV)
TIME (10ns/DIV)
TIME (100ns/DIV)
S
S
S
= ±25mV
= ±25mV
= ±25mV
IN
IN
IN
= R = 887Ω
= R = 1.1k
= R = 11k
F
G
F
G
F
G
= 20k TO GND
= 150Ω
= 56k TO GND
= 150Ω
= 1M TO GND
= 1k
SET
SET
SET
L
L
L
62101 G34
62101 G35
62101 G36
Large-Signal Transient Response
(IS = 6mA per Amplifier)
Large-Signal Transient Response
(IS = 3mA per Amplifier)
Large-Signal Transient Response
(IS = 300µA per Amplifier)
V
V
R
R
R
= ±5V
V
V
R
R
R
= ±5V
V
V
R
R
R
= ±5V
TIME (10ns/DIV)
TIME (10ns/DIV)
TIME (100ns/DIV)
S
S
S
= ±1.75V
= ±1.75V
= ±1.75V
IN
IN
IN
= R = 887Ω
= R = 1.1k
= R = 11k
F
G
F
G
F
G
= 20k TO GND
= 150Ω
= 56k TO GND
= 150Ω
= 1M TO GND
= 1k
SET
SET
SET
L
L
L
62101 G37
62101 G38
62101 G39
62101f
11
LT6210/LT6211
W U U
U
APPLICATIO S I FOR ATIO
Input Considerations
Setting the Quiescent Operating Current (ISET Pin)
The inputs of the LT6210/LT6211 are protected by back-
to-back diodes. If the differential input voltage exceeds
1.4V, the input current should be limited to less than the
absolute maximum ratings of ±10mA. In normal opera-
tion, thedifferentialvoltagebetweentheinputsissmall, so
the ±1.4V limit is generally not an issue. ESD diodes
protect both inputs, so although the part is not guaranteed
to function outside the common mode range, input volt-
ages that exceed a diode beyond either supply will also
require current limiting to keep the input current below the
absolute maximum of ±10mA.
The quiescent bias point of the LT6210/LT6211 is set with
either an external resistor from the ISET pin to a lower
potential or by drawing a current out of the ISET pin.
However, the ISET pin is not designed to function as a
shutdown.TheLT6211usestwoentirelyindependentbias
networks, so while each channel can be programmed for
a different supply current, neither ISET pin should be left
unconnected. A simplified schematic of the internal bias-
ing structure can be seen in Figure 1. Figure 2 illustrates
the results of varying RSET on 3V and ±5V supplies. Note
that shorting the ISET pin under 3V operation results in a
quiescent bias of approximately 6mA. Attempting to bias
the LT6210/LT6211 at a current level higher than 6mA by
using a smaller resistor may result in instability and
decreasedperformance.However,internalcircuitryclamps
the supply current of the part at a safe level of approxi-
mately 15mA in case of accidental connection of the ISET
pin directly to a negative potential.
Feedback Resistor Selection
The small-signal bandwidth of the LT6210/LT6211 is set
bytheexternalfeedbackresistorsandtheinternaljunction
capacitances.Asaresult,thebandwidthisafunctionofthe
quiescent supply current, the supply voltage, the value of
the feedback resistor, the closed-loop gain and the load
resistor. Refer to the Typical AC Performance table for
more information.
+
V
6
600Ω
600Ω
Layout and Passive Components
As with all high speed amplifiers, the LT6210/LT6211
require some attention to board layout. Low ESL/ESR
bypass capacitors should be placed directly at the positive
and negative supply (0.1µF ceramics are recommended).
Forbesttransientperformance,additional4.7µFtantalums
should be added. A ground plane is recommended and
trace lengths should be minimized, especially on the
inverting input lead.
TO
8k
BIAS
CONTROL
5
I
6210 F01
SET
Figure 1. Internal Bias Setting Circuitry
V
= ±5V
S
R
TO GND
SET
10
Capacitance on the Inverting Input
Current feedback amplifiers require resistive feedback
from the output to the inverting input for stable operation.
Capacitanceontheinvertinginputwillcausepeakinginthe
frequency response and overshoot in the transient re-
sponse. Take care to minimize the stray capacitance at the
inverting input to ground and between the output and the
inverting input. If significant capacitance is unavoidable in
a given application, an inverting gain configuration should
be considered. When configured inverting, the amplifier
inputs do not slew and the effect of parasitics is greatly
reduced.
V
= 3V
SET
S
R
TO GND
1
T
= 25°C
= ∞
A
L
R
0.1
0.01
0.1
1
10
100
1000
R
PROGRAMMING RESISTOR (kΩ)
SET
6210 F02
Figure 2. Setting RSET to Control IS
62101f
12
LT6210/LT6211
W U U
APPLICATIO S I FOR ATIO
U
Capacitive Loads
that of the output stage. For gains less than 2 in the
noninverting mode, the overall slew rate is limited by the
input stage. The input slew rate of the LT6210/LT6211 on
±5V supplies with an RSET resistor of 20k (IS = 6mA) is
approximately 600V/µs and is set by internal currents and
capacitances. The output slew rate is additionally con-
strained by the value of the feedback resistor and internal
capacitance. At a gain of 2 with 887Ω feedback and gain
resistors,±5Vsuppliesandthesamebiasingasabove,the
output slew rate is typically 700V/µs. Larger feedback
resistors, lower supply voltages and lower supply current
levels will all reduce slew rate. Input slew rates signifi-
cantly exceeding the output slew capability can actually
decrease slew performance in a positive gain configura-
tion; the cleanest transient response will be obtained from
input signals with slew rates slower than 1000V/µs.
The LT6210/LT6211 are stable with any capacitive load.
Although peaking and overshoot may result in the AC
transientresponse,theamplifier’scompensationdecreases
bandwidth with increasing output capacitive load to en-
sure stability. To maintain a response with minimal peak-
ing, the feedback resistor can be increased at the cost of
bandwidth as shown in the Typical Performance Charac-
teristics. Alternatively, asmallresistor(5Ωto35Ω)canbe
put in series with the output to isolate the capacitive load
from the amplifier output. This has the advantage that the
amplifier bandwidth is only reduced when the capacitive
load is present. The disadvantage of this technique is that
the gain is a function of the load resistance.
Power Supplies
Output Swing and Drive
The LT6210/LT6211 will operate on single supplies from
3V to 12V and on split supplies from ±1.5V to ±6V. If split
supplies of unequal absolute value are used, input offset
voltage and inverting input current will shift from the
values specified in the Electrical Characteristics table.
Input offset voltage will shift 2mV and inverting input
current will shift 0.5µA for each volt of supply mismatch.
The output stage of the LT6210/LT6211 consists of a pair
of class-AB biased common emitters that enable the
outputtoswingrail-to-rail.Sincetheamplifierscanpoten-
tially deliver output currents well beyond the specified
minimum short-circuit current, care should be taken not
to short the output of the device indefinitely. Attention
must be paid to keep the junction temperature of the IC
below the absolute maximum rating of 150°C if the output
is used to drive low impedance loads. See Note 5 for
details. Additionally, the output of the amplifier has re-
verse-biased ESD diodes connected to each supply. If the
output is forced beyond either supply, large currents will
flowthroughthesediodes.Ifthecurrentislimitedto80mA
or less, no damage to the part will occur.
Slew Rate
Unlike a traditional voltage feedback op amp, the slew rate
of a current feedback amplifier is not independent of the
amplifier gain configuration. In a current feedback ampli-
fier, both the input stage and the output stage have slew
rate limitations. In the inverting mode, and for gains of 2
or more in the noninverting mode, the signal amplitude
between the input pins is small and the overall slew rate is
U
TYPICAL APPLICATIO
3V Cable Driver with Active Termination
Figure 3 shows the LT6210 using this “active termination”
schemeonasingle3Vsupply. TheamplifierisAC-coupled
and in an inverting gain configuration to maximize the
input signal range. The gain from VIN to the receiving end
of the cable, VOUT, is set to –1. The effective impedance
looking into the amplifier circuit from the cable is 50Ω
throughout the usable bandwidth.
Driving back-terminated cables on single supplies usually
resultsinverylimitedsignalamplitudeatthereceivingend
of the cable. However, positive feedback can be used to
reduce the size of the series back termination resistor,
therebydecreasingtheattenuationbetweentheseriesand
shunt termination resistors while still maintaining con-
trolled output impedance from the line-driving amplifier.
62101f
13
LT6210/LT6211
U
TYPICAL APPLICATIO
The response of the cable driver with a 1MHz sinusoid is
shown in Figure 4. The circuit is capable of transmitting
a 1.5VP-P undistorted sinusoid to the 50Ω termination
3V
resistor and has a full signal 1VP-P bandwidth of 50MHz.
Small signal –3dB bandwidth extends from 1kHz to
56MHz with the selected coupling capacitors.
2k
1%
1.3k
1%
2k
1%
V
IN
1V/DIV
3V
R
SER
4
3
6
15Ω
+
–
2.2µF
V
A
1%
1
1V/DIV
249Ω
1%
LT6210
5
V
OUT
2.2µF
V
R
2
A
TERM
V
IN
50Ω
V
6210 F03
154Ω
OUT
3300pF
NPO
1V/DIV
1%
200ns/DIV
6210 F04
Figure 3. 3V Cable Driver with Active Termination
Figure 4. Response of Circuit at 1MHz
W
W
SI PLIFIED SCHE ATIC
+
V
6
+
V
+IN
3
–IN
4
OUT
1
OUTPUT BIAS
CONTROL
600Ω
600Ω
–
V
8k
SUPPLY
CURRENT
CONTROL
5
–
V
I
SET
2
6210 SS
U
PACKAGE DESCRIPTIO
DD Package
10-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1699)
R = 0.115
0.38 ± 0.10
TYP
6
10
0.675 ±0.05
3.50 ±0.05
2.15 ±0.05 (2 SIDES)
1.65 ±0.05
3.00 ±0.10
(4 SIDES)
1.65 ± 0.10
(2 SIDES)
PIN 1
PACKAGE
OUTLINE
TOP MARK
(SEE NOTE 5)
(DD10) DFN 0403
5
1
0.25 ± 0.05
0.50 BSC
0.75 ±0.05
0.200 REF
0.25 ± 0.05
0.50
BSC
2.38 ±0.10
(2 SIDES)
2.38 ±0.05
(2 SIDES)
0.00 – 0.05
BOTTOM VIEW—EXPOSED PAD
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
NOTE:
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-2).
CHECK THE LTC WEBSITE DATA SHEET FOR CURRENT STATUS OF VARIATION ASSIGNMENT
2. ALL DIMENSIONS ARE IN MILLIMETERS
4. EXPOSED PAD SHALL BE SOLDER PLATED
5. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE
TOP AND BOTTOM OF PACKAGE
3. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
62101f
14
LT6210/LT6211
U
PACKAGE DESCRIPTIO
MS Package
10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1661)
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
0.497 ± 0.076
(.0196 ± .003)
10 9
8
7 6
REF
3.00 ± 0.102
(.118 ± .004)
(NOTE 4)
4.90 ± 0.152
(.193 ± .006)
0.889 ± 0.127
(.035 ± .005)
DETAIL “A”
0.254
(.010)
0° – 6° TYP
GAUGE PLANE
5.23
(.206)
MIN
1
2
3
4 5
3.20 – 3.45
(.126 – .136)
0.53 ± 0.152
(.021 ± .006)
0.86
(.034)
REF
1.10
(.043)
MAX
DETAIL “A”
0.18
(.007)
0.50
(.0197)
BSC
0.305 ± 0.038
(.0120 ± .0015)
TYP
SEATING
PLANE
RECOMMENDED SOLDER PAD LAYOUT
0.17 – 0.27
(.007 – .011)
TYP
0.127 ± 0.076
(.005 ± .003)
MSOP (MS) 0603
NOTE:
0.50
(.0197)
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
S6 Package
6-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1636)
2.90 BSC
(NOTE 4)
0.62
MAX
0.95
REF
1.22 REF
1.4 MIN
1.50 – 1.75
(NOTE 4)
2.80 BSC
3.85 MAX 2.62 REF
PIN ONE ID
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.30 – 0.45
6 PLCS (NOTE 3)
0.95 BSC
0.80 – 0.90
0.20 BSC
DATUM ‘A’
0.01 – 0.10
1.00 MAX
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
S6 TSOT-23 0302
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
3. DIMENSIONS ARE INCLUSIVE OF PLATING
62101f
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 represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
15
LT6210/LT6211
U
TYPICAL APPLICATIO S
Line Driver with Power Saving Mode
bandwidth of the LT6210 in this circuit increases from
about 40MHz in low power mode to over 200MHz in full
speedmode, asillustratedinFigure6. OtherACspecsalso
improve significantly at the higher current setting. The
following table shows harmonic distortion at 1MHz with a
2VP-P sinusoid at the two selected current levels.
In applications where low distortion or high slew rate are
desirable but not necessary at all times, it may be possible
to decrease the LT6210 or LT6211’s quiescent current
when the higher power performance is not required.
Figure 5 illustrates a method of setting quiescent current
with a FET switch. In the 5V dual supply case pictured,
shorting the ISET pin through an effective 20k to ground
sets the supply current to 6mA, while the 240k resistor at
the ISET pin with the FET turned off sets the supply current
to approximately 1mA. The feedback resistor of 4.02k is
selected to minimize peaking in low power mode. The
Harmonic Distortion
LOW POWER
–53dBc
–46dBc
FULL SPEED
–68dBc
–77dBc
HD2
HD3
HD2
HD3
3
2
R3
5V
4.02k
FULL
1
SPEED
MODE
4
0
–
6
I = 6mA
S
1
–1
–2
–3
–4
–5
–6
V
OUT
LT6210
5
V
LOW POWER
MODE
IN
3
R
LOAD
2
+
150Ω
I
= 1mA
S
–5V
HS/LP
R2
22k
R1
240k
T
= 25°C
OUT
A
V
= 100mV
P-P
2N7002
0
1
10
100
1000
6210 F05
FREQUENCY (MHz)
6210 F06
Figure 5. Line Driver with Low Power Mode
Figure 6. Frequency Response for Full
Speed and Low Power Mode
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62101f
LT/TP 0204 1K • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
16
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