LT1630CS8#PBF Linear Technology, LT1630CS8#PBF Datasheet - Page 14

• Manufacturer Part Number: LT1630CS8#PBF
• Description: IC OPAMP R-R IN/OUT DUAL 8-SOIC
• Manufacturer: Linear Technology
• Type: General Purpose Amplifierr

Specifications of LT1630CS8#PBF

• Amplifier Type: General Purpose
• Number Of Circuits: 2
• Output Type: Rail-to-Rail
• Slew Rate: 10 V/µs
• Gain Bandwidth Product: 30MHz
• Current - Input Bias: 550nA
• Voltage - Input Offset: 220µV
• Current - Supply: 4.1mA
• Current - Output / Channel: 70mA
• Voltage - Supply, Single/dual (±): 2.7 V ~ 36 V, ±1.35 V ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Rail/rail I/o Type: Rail to Rail Input/Output
• Number Of Elements: 2
• Unity Gain Bandwidth Product: 30MHz
• Common Mode Rejection Ratio: 79dB
• Input Offset Voltage: 525uV
• Input Bias Current: 1uA
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): ±15V
• Voltage Gain In Db: 130.88dB
• Power Supply Rejection Ratio: 87dB
• Power Supply Requirement: Single/Dual
• Shut Down Feature: No
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 36V
• Dual Supply Voltage (min): ±1.35V
• Dual Supply Voltage (max): ±18V
• Technology: BiCOM
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: Compliant

LT1630/LT1631
Typical perForMance characTerisTics
applicaTions inForMaTion
Rail-to-Rail Input and Output
The LT1630/LT1631 are fully functional for an input and
output signal range from the negative supply to the posi-
tive supply. Figure 1 shows a simplified schematic of the
amplifier. The input stage consists of two differential am-
plifiers, a PNP stage Q1/Q2 and an NPN stage Q3/Q4 that
are active over different ranges of input common mode
voltage. The PNP differential input pair is active for input
common mode voltages V
to approximately 1.4V below the positive supply. As V
moves closer toward the positive supply, the transis-

–100
–100
–20
–40
–60
–80
–20
–40
–60
–80
0
0
100
100
Harmonic Distortion vs Frequency
Harmonic Distortion vs Frequency
V
A
V
V
A
V
S
V
IN
S
V
IN
= 5V, 0V
= 1
= 5V, 0V
= –1
= 2V
R
R
= 2V
R
R
L
L
L
L
= 150
= 1k
= 150
= 1k
P-P
P-P
200
200
FREQUENCY (kHz)
FREQUENCY (kHz)
3RD
3RD
2ND
3RD
2ND
CM
500
500
2ND
3RD
2ND
between the negative supply
1630/31 G30
1630/31 G31
1000
1000
5V Small-Signal Response
±15V Small-Signal Response
V
A
R
V
A
R
S
V
L
S
V
L
= 5V, 0V
= 1
= 1k
= ±15V
= 1
= 1k
CM
tor Q5 will steer the tail current I
Q6/Q7, activating the NPN differential pair and the PNP
pair becomes inactive for the rest of the input common
mode range up to the positive supply.
The output is configured with a pair of complementary
common emitter stages Q14/Q15 that enables the output
to swing from rail to rail. These devices are fabricated on
Linear Technology’s proprietary complementary bipolar
process to ensure similar DC and AC characteristics. Ca-
pacitors C1 and C2 form local feedback loops that lower
the output impedance at high frequencies.
163031 G26
163031 G28
5V Large-Signal Response
±15V Large-Signal Response
V
A
R
V
A
R
S
V
S
V
L
L
= 5V, 0V
= 1
= 1k
= ±15V
= 1
= 1k
1
to the current mirror
163031 G27
163031 G29
16301fa