LTC1405 Datasheet, PDF (6/16 Pages) Linear Technology – 12-Bit, 5Msps, Sampling ADC

LTC1405
W
FU CTIO AL BLOCK DIAGRA
+A_IN
–A_IN
V_CM
SENSE
GAIN
S/H
MODE SELECT
V_REF
5V
V_DD
V_DD
(PIN 7) (PIN 23) OV_DD
OPTIONAL 3V
LOGIC SUPPLY
PIPELINED 12-BIT ADC
DIGITAL CORRECTION
LOGIC
2.5V
REFERENCE
2.048V
OUTPUT
BUFFERS
OF
D11 (MSB)
D0 (LSB)
CLK
V_SS
0V OR –5V
GND
(PIN 6)
GND
(PIN 8)
GND
OGND
(PIN 24)
1405 FBD
WU
W
TI I G DIAGRA
ANALOG
INPUT
CLK
DATA
OUTPUT
N+1
N
t_CLOCK
t_H
t_L
N+2
N+3
t_CONV
N–3
t_ACQ
N–2
N–1
N
1405 TD
6