参数资料
型号: TLC2578IPWRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封装: GREEN, PLASTIC, TSSOP-24
文件页数: 12/49页
文件大小: 1137K
代理商: TLC2578IPWRG4
TLC3574, TLC3578, TLC2574, TLC2578
5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL
SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS
SLAS262C OCTOBER 2000 REVISED MAY 2003
2
WWW.TI.COM
description (continued)
In addition to being a high-speed ADC with versatile control capability, these devices have an on-chip analog
multiplexer (MUX) that can select any analog input or one of three self-test voltages. The sample-and-hold
function is automatically started after the fourth SCLK (normal sampling) or can be controlled by a special pin,
CSTART, to extend the sampling period (extended sampling). The normal sampling period can also be
programmed as short sampling (12 SCLKs) or long sampling (44 SCLKs) to accommodate the faster SCLK
operation popular among high-performance signal processors. The TLC3574/78 and TLC2574/78 are
designed to operate with low-power consumption. The power saving feature is further enhanced with
autopower-down mode and programmable conversion speeds. The conversion clock (internal OSC) is built in.
The converter can also use an external SCLK as the conversion clock for maximum flexibility. The TLC3574/78
and TLC2574/78 are specified with bipolar input and a full scale range of
±10 V.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
20-TSSOP
(PW)
20-SOIC
(DW)
20-PDIP
(N)
24-SOIC
(DW)
24-TSSOP
(PW)
40
°C to 85°C
TLC2574IPW
TLC2574IDW
TLC2574IN
TLC2578IDW
TLC2578IPW
40
°C to 85°C
TLC3574IPW
TLC3574IDW
TLC3574IN
TLC3578IDW
TLC3578IPW
functional block diagram
Analog
MUX
Signal
Scaling
Command
Decode
CMR (4 MSBs)
SAR
ADC
OSC
Conversion
Clock
FIFO
X8
Control
Logic
4-Bit
Counter
SDO
EOC/INT
DVDD AVDD
DGND AGND
CSTART
FS
CS
SCLK
SDI
CFR
REFM
COMP
REFP
X8
A0
A1
A2
A3
A4
A5
A6
A7
X4
A0
A1
A2
A3
X
TLC3578, TLC2578
TLC3574, TLC2574
NOTE: 4-Bit counter counts the CLOCK, SCLK. The CLOCK is gated in by CS falling edge if CS initiates the conversion operation cycle, or gated
in by the rising edge of FS if FS initiates the operation cycle. SCLK is disabled for serial interface when CS is high.
相关PDF资料
PDF描述
TLC3578IDWG4 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC2578IDWG4 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC2578IPWR 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3578IDW 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3578IDWRG4 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
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