LTC6400-26 Linear Technology, LTC6400-26 Datasheet - Page 9

• Manufacturer Part Number: LTC6400-26
• Description: Low Distortion Differential ADC Driver
• Manufacturer: Linear Technology

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PIN FUNCTIONS
BLOCK DIAGRAM
V
to 3V or 3.3V). All three pins must be tied to the same
voltage. Bypass each pin with 1000pF and 0.1μF capaci-
tors as close to the pins as possible.
V
voltage. An 0.1μF external bypass capacitor is recom-
mended.
V
pins must be connected to same voltage/ground.
–OUT, +OUT (Pins 5, 8): Unfi ltered Outputs. These pins
have series 12.5Ω resistors R
+
OCM
–
(Pins 1, 3, 10): Positive Power Supply (Normally tied
(Pins 4, 9, 12, 17): Negative Power Supply. All four
(Pin 2): This pin sets the output common mode
OUT
+IN
+IN
–IN
–IN
.
13
14
15
16
25Ω
25Ω
R
R
G
G
12
1
V –
V
+
IN+
IN–
BIAS CONTROL
11
2
500Ω
500Ω
R
R
ENABLE
V
5.3pF
F
F
2k
OCM
OUT–
OUT+
–OUTF, +OUTF (Pins 6, 7): Filtered Outputs. These pins
have 50Ω series resistors and a 2.7pF shunt capacitor.
ENABLE (Pin 11): This pin is a logic input referenced to
V
and draws very low standby current while the internal op
amp has high output impedance.
+IN (Pins 13, 14): Positive Input. Pins 13 and 14 are
internally shorted together.
–IN (Pins 15, 16): Negative Input. Pins 15 and 16 are
internally shorted together.
Exposed Pad (Pin 17): V
connected to same voltage/ground as pins 4, 9, 12.
10
3
EE
V
V
. If low, the part is enabled. If high, the part is disabled
MODE CONTROL
+
+
12.5Ω
12.5Ω
R
R
R
R
50Ω
50Ω
COMMON
OUT
FILT
FILT
OUT
9
4
V –
V –
C
2.7pF
FILT
8
7
6
5
640026 BD
+OUT
+OUTF
–OUTF
–OUT
–
. The Exposed Pad must be
LTC6400-26
640026fa
9