MAX4012EUK+T Maxim Integrated Products, MAX4012EUK+T Datasheet - Page 10

• Manufacturer Part Number: MAX4012EUK+T
• Description: IC OP AMP SNGL SPLY R-R SOT23-5
• Manufacturer: Maxim Integrated Products

Specifications of MAX4012EUK+T

• Amplifier Type: General Purpose
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 600 V/µs
• -3db Bandwidth: 200MHz
• Current - Input Bias: 5.4µA
• Voltage - Input Offset: 4000µV
• Current - Supply: 5.5mA
• Current - Output / Channel: 120mA
• Voltage - Supply, Single/dual (±): 3.15 V ~ 11 V, ±1.575 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Number Of Channels: 1
• Common Mode Rejection Ratio (min): 70 dB
• Input Offset Voltage: 4 mV
• Input Bias Current (max): 5.4 uA
• Operating Supply Voltage: 5 V, 9 V
• Maximum Power Dissipation: 571 mW
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Dual Supply Voltage: +/- 3 V, +/- 5 V
• Maximum Dual Supply Voltage: +/- 5.5 V
• Minimum Dual Supply Voltage: +/- 1.575 V
• Mounting Style: SMD/SMT
• Shutdown: No
• Supply Voltage (max): 11 V
• Supply Voltage (min): 3.15 V
• Voltage Gain Db: 61 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Gain Bandwidth Product: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The MAX4012/MAX4016/MAX4018/MAX4020 are sin-
gle-supply, rail-to-rail, voltage-feedback amplifiers that
employ current-feedback techniques to achieve
600V/µs slew rates and 200MHz bandwidths. Excellent
harmonic distortion and differential gain/phase perfor-
mance make these amplifiers an ideal choice for a wide
variety of video and RF signal-processing applications.
The output voltage swing comes to within 50mV of each
supply rail. Local feedback around the output stage
assures low open-loop output impedance to reduce
gain sensitivity to load variations. This feedback also
produces demand-driven current bias to the output
transistors for ±120mA drive capability, while constrain-
ing total supply current to less than 7mA. The input
stage permits common-mode voltages beyond the nega-
tive supply and to within 2.25V of the positive supply rail.
The MAX4012/MAX4016/MAX4018/MAX4020 are inter-
nally compensated for unity gain. When configured for
unity gain, the devices require a 24
series with the feedback path. This resistor improves
AC response by reducing the Q of the parallel LC cir-
Low-Cost, High-Speed, Single-Supply
Op Amps with Rail-to-Rail Outputs
Figure 1a. Noninverting Gain Configuration
10
______________________________________________________________________________________
R
G
IN
R
TIN
Applications Information
MAX40_ _
R
F
V
OUT
Choosing Resistor Values
Detailed Description
= [1+ (R
F
Unity-Gain Configuration
/ R
R
TO
G
)] V
IN
resistor (R
V
OUT
F
R
) in
O
cuit formed by the parasitic feedback capacitance and
inductance.
Select the gain-setting feedback (R
resistor values to fit your application. Large resistor val-
ues increase voltage noise and interact with the amplifi-
er’s input and PC board capacitance. This can
generate undesirable poles and zeros and decrease
bandwidth or cause oscillations. For example, a nonin-
verting gain-of-two configuration (R
resistors, combined with 1pF of amplifier input capaci-
tance and 1pF of PC board capacitance, causes a pole
at 159MHz. Since this pole is within the amplifier band-
width, it jeopardizes stability. Reducing the 1k
tors to 100
but could limit output swing by adding 200
with the amplifier’s load resistor. Table 1 shows sug-
gested feedback, gain resistors, and bandwidth for
several gain values in the configurations shown in
Figures 1a and 1b.
These amplifiers operate from a single 3.3V to 11V power
supply or from dual supplies to ±5.5V. For single-supply
operation, bypass V
as close to the pin as possible. If operating with dual sup-
plies, bypass each supply with a 0.1µF capacitor.
Figure 1b. Inverting Gain Configuration
R
IN
TIN
Layout and Power-Supply Bypassing
R
G
Inverting and Noninverting Configurations
R
S
extends the pole frequency to 1.59GHz,
MAX40_ _
CC
V
R
OUT
F
to ground with a 0.1µF capacitor
= -(R
F
/ R
G
) V
IN
R
TO
F
F
= R
) and input (R
G
) using 1k
in parallel
V
resis-
OUT
R
G
O
)