MAX412CSA-T Maxim Integrated Products, MAX412CSA-T Datasheet - Page 10

• Manufacturer Part Number: MAX412CSA-T
• Description: Op Amps Dual 28MHz Low-V Low-Noise Precision
• Manufacturer: Maxim Integrated Products

Specifications of MAX412CSA-T

• Number Of Channels: 2
• Voltage Gain Db: 122 dB
• Common Mode Rejection Ratio (min): 115 dB
• Input Offset Voltage: 0.25 mV
• Operating Supply Voltage: 5 V or 9 V
• Supply Current: 5.4 mA
• Maximum Power Dissipation: 471 mW
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8 Narrow
• Maximum Dual Supply Voltage: +/- 5.25 V
• Minimum Operating Temperature: 0 C

On TDFN packages, there is an exposed paddle that
does not carry any current but should be connected to
V- (not the GND plane) for rated power dissipation.
Although the MAX410/MAX412/MAX414 are specified
with ±5V power supplies, they are also capable of sin-
gle-supply operation with voltages as low as 4.8V. The
minimum input voltage range for normal amplifier oper-
ation is between V- + 1.5V and V+ - 1.5V. The minimum
room-temperature output voltage range (with 2kΩ load)
Single/Dual/Quad, 28MHz, Low-Noise,
Low-Voltage, Precision Op Amps
Figure 7a. Capacitive-Load Driving Circuit
Figure 7b. Driving a 0.015µF Load with a 10 Ω Isolation Resistor
10
______________________________________________________________________________________
OUTPUT
V
Total Supply Voltage Considerations
IN
INPUT
1V/div
1V/div
TDFN Exposed Paddle Connection
D.U.T
499Ω
1µs/div
MAX410
MAX412
MAX414
10Ω
R
I
V
T
A
S
= +25°C
= ±5V
C
L
> 0.015µF
V
OUT
GND
GND
is between V+ - 1.4V and V- + 1.3V for total supply volt-
ages between 4.8V and 10V. The output voltage range,
referenced to the supply voltages, decreases slightly
over temperature, as indicated in the ±5V Electrical
Characteristics tables. Operating characteristics at total
supply, voltages of less than 10V are guaranteed by
design and PSRR tests.
The offset null circuit of
±450µV of offset adjustment range, sufficient for zeroing
offset over the full operating temperature range,
Figure 8. Capacitive-Load Driving Circuit with Loop-Enclosed
Isolation Resistor
Figure 9. MAX410 Offset Null Circuit
V
IN
909Ω
1kΩ
1
NULL
MAX410 Offset Voltage Null
D.U.T
82pF
C
F
10kΩ
Figure 9
10kΩ
MAX410
MAX410
MAX412
MAX414
provides approximately
NULL
10Ω
R
V+
I
8
7
C
0.01µF
L
V
OUT