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Part: LT1259CN
Category:
Analog & Mixed-Signal Processing
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-> Operational Amplifiers
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Description: LT1259, Low Cost Dual 130MHz Current Feedback Amplifier With Shutdown
Company: Linear Technology Corporation
Datasheet: Download LT1259CN datasheet File size : 467 kB
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Datasheet text preview:
LT1259/LT1260 Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown
FEATURES
s s s s s s s s s s s s
DESCRIPTIO
90MHz Bandwidth on ±5V 0.1dB Gain Flatness > 30MHz Completely Off in Shutdown, 0µA Supply Current High Slew Rate: 1600V/µs Wide Supply Range: ±2V(4V) to ±15V(30V) 60mA Output Current Low Supply Current: 5mA/Amplifier Differential Gain: 0.016% Differential Phase: 0.075° Fast Turn-On Time: 100ns Fast Turn-Off Time: 40ns 14-Pin and 16-Pin Narrow SO Packages
The LT ®1259 contains two independent 130MHz current feedback amplifiers, each with a shutdown pin. These amplifiers are designed for excellent linearity while driving cables and other low impedance loads. The LT1260 is a triple version especially suited to RGB video applications. These amplifiers operate on all supplies from single 5V to ± 15V and draw only 5mA per amplifier when active. When shut down, the LT1259/LT1260 amplifiers draw zero supply current and their outputs become high impedance. Only two LT1260s are required to make a complete 2-input RGB MUX and cable driver. These amplifiers turn on in only 100ns and turn off in 40ns, making them ideal in spread spectrum and portable equipment applications. The LT1259/LT1260 amplifiers are manufactured on Linear Technology's proprietary complementary bipolar process.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s s s s s
RGB Cable Drivers Spread Spectrum Amplifiers MUX Amplifiers Composite Video Cable Drivers Portable Equipment
TYPICAL APPLICATIO
2-Input Video MUX Cable Driver
A VIN A RG 1.6k CHANNEL SELECT EN A 75 75 CABLE VOUT VIN B RG 1.6k B
Square Wave Response
+
1/2 LT1259 RF 1.6k
+
EN B 75
LT1259/60 · TA01
75
1/2 LT1259 RF 1.6k
CABLE OUTPUT
RL = 150 f = 30MHz
U
LT1259/50 · TA02
U
U
1
LT1259/LT1260
ABSOLUTE
AXI U
RATI GS
Operating Temperature Range ...... 40°C to 85°C Storage Temperature Range ....... 65°C to 150°C Junction Temperature (Note 4) .... 150°C Lead Temperature (Soldering, 10 sec)......... 300°C
Supply Voltage ..... ±18V Input Current ..... ±15mA Output Short-Circuit Duration (Note 1) ......... Continuous Specified Temperature Range (Note 2) ....... 0°C to 70°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW IN A + IN A GND GND GND + IN B IN B 1 2 3 4 5 6 7 B A 14 EN A 13 OUT A 12 V + 11 GND 10 V 9 8 OUT B EN B
ORDER PART NUMBER LT1259CN LT1259CS LT1259IN LT1259IS
N PACKAGE S PACKAGE 14-LEAD PLASTIC DIP 14-LEAD PLASTIC SOIC
TJMAX = 150°C, JA = 70°C/W (N) TJMAX = 150°C, JA = 110°C/W (S)
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
0°C TA 70°C, each amplifier VCM = 0V, ±5V VS ±15V, EN pins = 0V, pulse tested, unless otherwise noted.
SYMBOL V OS PARAMETER Input Offset Voltage Input Offset Voltage Drift Noninverting Input Current Inverting Input Current Input Noise Voltage Density Noninverting Input Noise Current Density Inverting Input Noise Current Density Input Resistance Input Capacitance Output Capacitance Input Voltage Range CONDITIONS TA = 25°C
q q
I IN + I IN en + in in RIN C IN C OUT V IN
TA = 25°C
q
TA = 25°C
q
f = 1kHz, RF = 1k, RG = 10, RS = 0 f = 1kHz f = 1kHz VIN = ±13V, VS = ±15V VIN = ±3V, VS = ±5V Enabled Disabled Disabled VS = ±15V, TA = 25°C VS = ±5V, TA = 25°C
2
U
U
W
WW
U
W
TOP VIEW IN R + IN R GND IN G + IN G GND + IN B IN B 1 2 3 4 5 6 7 8 B G R 16 EN R 15 OUT R 14 V + 13 EN G 12 OUT G 11 V 10 OUT B 9 EN B
ORDER PART NUMBER LT1260CN LT1260CS LT1260IN LT1260IS
N PACKAGE S PACKAGE 16-LEAD PLASTIC DIP 16-LEAD PLASTIC SOIC TJMAX = 150°C, JA = 70°C/W (N) TJMAX = 150°C, JA = 100°C/W (S)
MIN
TYP 2 30 0.5 20 3.6 1.3 45 17 25 2 4 4.4 ± 13.5 ± 3.5
MAX 12 16 3 6 90 120
q q
2 2
q q
± 13 ± 12 ±3 ±2
UNITS mV mV µV/°C µA µA µA µA nV/Hz pA /Hz pA /Hz M M pF pF pF V V V V
LT1259/LT1260
ELECTRICAL CHARACTERISTICS
0°C TA 70°C, each amplifier VCM = 0V, ±5V VS ±15V, EN pins = 0V, pulse tested, unless otherwise noted.
SYMBOL V OUT PARAMETER Maximum Output Voltage Swing CONDITIONS VS = ±15V, RL = 1k VS = ±5V, RL = 150, TA = 25°C VS = ±15V, VCM = ±13V, TA = 25°C VS = ±15V, VCM = ±12V VS = ±5V, VCM = ±3V, TA = 25°C VS = ±5V, VCM = ±2V VS = ±15V, VCM = ±13V, TA = 25°C VS = ±15V, VCM = ±12V VS = ±5V, VCM = ±3V, TA = 25°C VS = ±5V, VCM = ±2V VS = ±2V to ±15V, EN Pins at V , TA = 25°C VS = ±3V to ±15V, EN Pins at V VS = ±3V to ±15V, EN Pins at V , TA = 25°C VS = ±3V to ±15V, EN Pins at V VS = ±2V to ±15V, EN Pins at V , TA = 25°C VS = ±3V to ±15V, EN Pins at V VS = ±15V, VOUT = ±10V, RL = 1k VS = ±5V, VOUT = ±2V, RL = 150 VS = ±15V, VOUT = ±10V, RL = 1k VS = ±5V, VOUT = ±2V, RL = 150 RL = 0, TA = 25°C VS = ±15V, VOUT = 0V, TA = 25°C
q q
CMRR
Common-Mode Rejection Ratio
q q q
MIN ± 12.0 ± 3.0 ± 2.5 55 55 52 52
TYP ± 14.0 ± 3.7 69 63 3.5 4.5
MAX
Inverting Input Current Common-Mode Rejection
q q q
10 10 15 15
PSRR
Power Supply Rejection Ratio Noninverting Input Current Power Supply Rejection Inverting Input Current Power Supply Rejection Large-Signal Voltage Gain Transresistance, VOUT/IIN Maximum Output Current Supply Current per Amplifier (Note 5) Disable Supply Current per Amplifier Enable Pin Current
60 60
80 15 0.1 65 75 5 5
q q q q q
AV ROL I OUT IS
57 57 120 100 30
72 69 300 200 60 5.0 4.5 3 1 60
VS = ±5V, VOUT = 0V, TA = 25°C VS = ±15V, EN Pin Voltage = 14.5V, RL = 150 q q VS = ±15V, Sink 1µA From EN Pin VS = ±15V, EN Pin Voltage = 0V, TA = 25°C
q
q
7.5 7.9 6.7 16.7 2.7 200 300 400 150
SR t ON t OFF tr, tf
tS
Slew Rate (Note 6) Turn-On Delay Time (Note 7) Turn-Off Delay Time (Note 7) Small-Signal Rise and Fall Time Propagation Delay Small-Signal Overshoot Settling Time Differential Gain (Note 8) Differential Phase (Note 8)
TA = 25°C AV = 10, TA = 25°C AV = 10, TA = 25°C VS = ±12V, RF = RG = 1.5k, RL = 150 VS = ±12V, RF = RG = 1.5k, RL = 150 VS = ±12V, RF = RG = 1.5k, RL = 150 0.1%, VOUT = 10V, RF = RG = 1.5k, RL = 1k VS = ±12V, RF = RG = 1.5k, RL = 150 VS = ±12V, RF = RG = 1.5k, RL = 150
900
1600 100 40 4.2 4.7 5 75 0.016 0.075
UNITS V V V dB dB dB dB µA / V µA / V µA / V µA / V dB dB nA / V nA / V µA / V µA/ V dB dB k k mA mA mA mA µA µA µA µA V/µs ns ns ns ns % ns % DEG
40°C TA 85°C, each amplifier VCM = 0V, ±5V VS ±15V, EN pins = 0V, pulse tested, unless otherwise noted.
SYMBOL V OS I IN + I IN RIN AV IS PARAMETER Input Offset Voltage Noninverting Input Current Inverting Input Current Input Resistance Large-Signal Gain Disable Supply Current per Amplifier Enable Pin Current CONDITIONS
q q q
MIN
TYP
MAX 18 7 130
VIN = ±3V, VS = ±5V VS = ±15V, EN Pin Voltage = 14.5V, RL = 150 VS = ±15V, EN Pin Voltage = 0V
q q q q
1 55 19 350
UNITS mV µA µA M dB µA µA
3
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