參數(shù)資料
型號: LTC2231CUP
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: Electrical Specifications Subject to Change
中文描述: 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
封裝: 9 X 9 MM, PLASTIC, MO-220-WNJR, QFN-64
文件頁數(shù): 14/28頁
文件大小: 695K
代理商: LTC2231CUP
LTC2230/LTC2231
14
22301p
FU
CTIO
AL BLOCK DIAGRAW
U
U
PIU
SENSE (Pin 59):
Reference Programming Pin. Connecting
SENSE to V
CM
selects the internal reference and a
±
0.5V
input range. V
DD
selects the internal reference and a
±
1V
input range. An external reference greater than 0.5V and
less than 1V applied to SENSE selects an input range of
±
V
SENSE
.
±
1V is the largest valid input range.
V
CM
(Pin 60):
1.6V Output and Input Common Mode Bias.
Bypass to ground with 2.2
μ
F ceramic chip capacitor.
GND (Exposed Pad):
ADC Power Ground. The exposed
pad on the bottom of the package needs to be soldered to
ground.
DIFF
REF
AMP
REF
BUF
2.2
μ
F
1
μ
F
0.1
μ
F
0.1
μ
F
1
μ
F
INTERNAL CLOCK SIGNALS
REFH
REFL
DIFFERENTIAL
INPUT
LOW JITTER
CLOCK
DRIVER
RANGE
SELECT
1.6V
REFERENCE
FIRST PIPELINED
ADC STAGE
(4 BITS)
FIFTH PIPELINED
ADC STAGE
(3 BITS)
FOURTH PIPELINED
ADC STAGE
(3 BITS)
SECOND PIPELINED
ADC STAGE
(3 BITS)
ENC
+
REFHA
REFLB
REFLA REFHB
ENC
SHIFT REGISTER
AND CORRECTION
OEL
M0DE
OGND
OF
OV
DD
D9
D0
CLKOUT
22201 F01
INPUT
S/H
SENSE
V
CM
A
IN–
A
IN+
2.2
μ
F
THIRD PIPELINED
ADC STAGE
(3 BITS)
OUTPUT
DRIVERS
CONTROL
LOGIC
LVDS SHDN
+
+
Figure 1. Functional Block Diagram
t
H
t
D
t
C
t
L
N – 5
N – 4
N – 3
N – 2
N – 1
t
AP
N + 1
N + 2
N + 4
N + 3
N
ANALOG
INPUT
ENC
ENC
+
CLOCKOUT
CLOCKOUT
+
D0-D9, OF
22201 TD01
LVDS Output Mode Timing
All Outputs Are Differential and Have LVDS Levels
TW
U
W
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