LT6020-1_15 Datasheet, PDF (1/20 Pages) Linear Technology – Dual Micropower, 5V/s Precision Rail-to-Rail Output Amplifier

Features
n _{Excellent Slew Rate to Power Ratio}
n _{Slew Rate: 5V/μs}
n _{Maximum Supply Current: 100μA/Amplifier}
n _{Maximum Offset Voltage: 30μV}
n _{Maximum Offset Voltage Drift: 0.5μV/°C}
n _{High Dynamic Input Impedance}
n _{Fast Recovery from Shutdown}
n _{Maximum Input Bias Current: 3nA}
n _{No Output Phase Inversion}
n _{Gain Bandwidth Product: 400kHz}
n _{Wide Specified Supply Range: 3V to 30V}
n _{Operating Temperature Range: –40°C to 125°C}
n _{DFN and MS8 Packages}
n _{Rail-to-Rail Outputs}
Applications
n _{Precision Signal Processing}
n _{18-Bit DAC Amplifier}
n _{Multiplexed ADC Applications}
n _{Low Power Portable Systems}
n _{Low Power Wireless Sensor Networks}
LT6020/LT6020-1
Dual Micropower, 5V/µs
Precision Rail-to-Rail
Output Amplifier
Description
The LT^®6020 is a low power, enhanced slew rate, precision
operational amplifier. The proprietary circuit topology of
this amplifier gives excellent slew rate at low quiescent
power dissipation without compromising precision or
settling time. In addition, unique input stage circuitry
allows the input impedance to remain high during input
voltage steps as large as 5V. The combination of preci-
sion specs along with fast settling makes this part ideal
for MUX applications.
The low quiescent current of the LT6020 along with its
ability to operate on supplies as low as 3V make it useful
in portable systems. The LT6020-1 features a shutdown
mode which reduces the typical supply current to 1.4μA.
The LT6020 is available in the small 8-lead DFN and 8-lead
MSOP packages. The LT6020-1 is available in a 10-lead
DFN package.
L, LT, LTC, LTM, Linear Technology, SmartMesh and the Linear logo are registered trademarks
and SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Patent Pending.
Typical Application
16-Bit DAC with ±10V Output Swing
20V Output Step Response
3.8V_DC TO 5.5V_DC
LT1019-2.5
IN
OUT
0.1µF
GND
1µF
0.1µF
V_DD
LTC2642
REF
POWER-ON
RESET
16-BIT DAC
R_FB
INV
V_OUT
CS
SCLK
DIN
CLR
CONTROL
LOGIC
16-BIT DATA LATCH
16-BIT SHIFT REGISTER
GND
10pF
15V
–
1/2 LT6020
+
–15V
5V/DIV
5V/DIV
V_OUT
1/2 LT6020
LT5400-1
10kΩ MATCHED
RESISTOR NETWORK
60201 TA01a
For more information www.linear.com/LT6020
CS
V_OUT
20µs/DIV
60201 TA01b
60201fa
1