參數(shù)資料
型號(hào): LTC2428C
廠商: Linear Technology Corporation
英文描述: 16-Bit 2.5-V to 3.3-V/3.3-V To 5-V Level Shifting Transceiver With 3-State Outputs 56-BGA MICROSTAR JUNIOR -40 to 85
中文描述: 4-/8-Channel 20位ADC的無(wú)延遲uPower
文件頁(yè)數(shù): 7/28頁(yè)
文件大?。?/td> 317K
代理商: LTC2428C
7
LTC2424/LTC2428
FUU
W
TEST CIRCUITS
3.4k
SDO
24248 TC01
Hi-Z TO V
OH
V
OL
TO V
V
OH
TO Hi-Z
C
LOAD
= 20pF
3.4k
SDO
24248 TC02
Hi-Z TO V
OL
V
OH
TO V
V
OL
TO Hi-Z
C
LOAD
= 20pF
V
CC
AUTOCALIBRATION
AND CONTROL
DECIMATING FIR
INTERNAL
OSCILLATOR
SERIAL
INTERFACE
CHANNEL
SELECT
ADC
DAC
GND
8
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
V
CC
SDO
SCK
FS
SET
ZS
SET
CSADC
F
O
(INT/EXT)
24248 BD
CSMUX
D
IN
CLK
APPLICATIO
S I
N
FOR
ATIO
U
Converter Operation Cycle
The LTC2424/LTC2428 are low power, 4-/8-channel delta-
sigma analog-to-digital converters with easy-to-use
4-wire interfaces. Their operation is simple and made up
of four states. The converter operation begins with the
conversion, followed by a low power sleep state and
concluded with the data output (see Figure 1). Channel
selection may be performed while the device is in the sleep
state or at the conclusion of the data output state. The
interface consists of serial data output (SDO), serial clock
(CLK/SCK), chip select (CSADC/CSMUX) and data input
W
U
(D
IN
). By tying SCK to CLK and CSADC to CSMUX, the
interface requires only four wires.
Initially, the LTC2424 or LTC2428 performs a conversion.
Once the conversion is complete, the device enters the
sleep state. While in the sleep state, power consumption
is reduced by an order of magnitude. The part remains in
the sleep state as long as CSADC is logic HIGH. The
conversion result is held indefinitely in a static shift
register while the converter is in the sleep state.
Channel selection for the next conversion cycle is per-
formed while the device is in the sleep state or at the end
相關(guān)PDF資料
PDF描述
LTC2428CG 4-/8-Channel 20-Bit uPower No Latency ADCs
LTC2428I 4-/8-Channel 20-Bit uPower No Latency ADCs
LTC2428IG 4-/8-Channel 20-Bit uPower No Latency ADCs
LTC2442 24-Bit High Speed 4-Channel Delta-Sigma ADC with Integrated Amplifi er
LTC2442CG 24-Bit High Speed 4-Channel Delta-Sigma ADC with Integrated Amplifi er
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