LTC6420CUDC-20#PBF Linear Technology, LTC6420CUDC-20#PBF Datasheet - Page 10

• Manufacturer Part Number: LTC6420CUDC-20#PBF
• Description: IC DIFF AMP/ADC DRIVER 20-QFN
• Manufacturer: Linear Technology
• Type: ADC Driverr

Specifications of LTC6420CUDC-20#PBF

• Applications: Data Acquisition
• Mounting Type: Surface Mount
• Package / Case: 20-QFN
• No. Of Amplifiers: 2
• Input Offset Voltage: 2mV
• Gain Db Max: 20dB
• Bandwidth: 1.8GHz
• Slew Rate: 4500V/µs
• Supply Voltage Range: 2.85V To 3.5V
• Supply Current: 80mA
• Amplifier Case Style: QFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIONS INFORMATION
LTC6420-20
10
2.85V TO
V
V
OCMA
+INA
–INA
–INB
+INB
OCMB
GND
GND
3.5V
TD4
TD5
TD1
TD2
TD3
V
+
J1
J2
J5
J7
1
1
1
1
0.1μF
0.1μF
C22
C22
C31
C30
[1]
[1]
C14
4.7μF
2
2
2
2
5
4
5
4
V
C22
[1]
C15
1μF
C21
[1]
C22
0.1μF
C30
0.1μF
+
• •
• •
T1
[2]
T3
[2]
V
V
+
+
1
2
3
1
2
3
R1
1.21k
1%
R2
1k
1%
R16
1.21k
1%
R18
1k
1%
Figure 4b. Demo Circuit 1299 Schematic (Test Circuit A)
Figure 4a. Top Silkscreen of DC1299, Test Circuit A
R5
[2]
R9
[2]
R10
[2]
R12
[2]
C25
0.1μF
C34
0.1μF
V
V
+
+
C18
0.1μF
C18
0.1μF
R7
OPT
R11
OPT
1
2
3
4
5
6
21
C19
0.1μF
C19
0.1μF
+INA
–INA
V
V
–INB
+INB
V
–
–
–
20
V
V
7
+
+
A
B
19
V
LTC6420-20
V
8
OCMA
OCMB
C42
0.1μF
18
9
ENB
ENA
C16
0.1μF
R3
1.5k
1%
R17
1.5k
1%
+OUTA
+OUTB
10
–OUTA
–OUTB
17
V
V
V
V
1
2
3
1
2
3
+
+
+
V
V
+
ENA
ENB
JP1
A
B
JP2
–
–
16
15
14
13
12
11
[2]
U1
DIS
EN
DIS
EN
NOTES: UNLESS OTHERWISE SPECIFIED
[1] DO NOT STUFF
[2]
VERSION
C35
1000pF
C32
1000pF
88.7
88.7
88.7
88.7
R12
R15
R4
R5
–C
–G
R14
[1]
V
[1]
R5
+
1
LTC6420CUDC-20
LTC6421CUDC-20
0.1μF
C39
2
3
2
1
3
2
1
U1
C43
0.1μF
C44
0.1μF
TCM4-19+
TCM4-19+
T2
T4
0.1μF
0.1μF
R5, R9, R10, R13
C17
C28
C32
C41
[1]
[1]
NONE
NONE
4
5
4
5
1
1
1
1
C30
0.1μF
C40
0.1μF
C34
[1]
C35
[1]
2
2
2
2
TCM4-19+
TCM4-19+
T1, T3
J3
J4
J6
J8
642020 F04b
–OUTB
+OUTB
+OUTA
–OUTA
642020fb