參數(shù)資料
型號(hào)： ADS1255IDBT
英文描述： Very Low Noise, 24-Bit Analog-to-Digital Converter
中文描述： 極低噪聲，24位模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 32/39頁(yè)
文件大小： 427K
代理商： ADS1255IDBT
SBAS288D JUNE 2003 REVISED AUGUST 2004
www.ti.com
32
DRATE: A/D Data Rate (Address 03h)
Reset Value = F0h
BIT 7
DR7
BIT 6
DR6
BIT 5
DR5
BIT 4
DR4
BIT 3
DR3
BIT 2
DR2
BIT 1
DR1
BIT 0
DR0
The 16 valid Data Rate settings are shown below. Make sure to select a valid setting as the invalid settings may produce
unpredictable results.
Bits 7-0
DR[7: 0]
: Data Rate Setting
(1)
11110000 = 30,000SPS (default)
11100000 = 15,000SPS
11010000 = 7,500SPS
11000000 = 3,750SPS
10110000 = 2,000SPS
10100001 = 1,000SPS
10010010 = 500SPS
10000010 = 100SPS
01110010 = 60SPS
01100011 = 50SPS
01010011 = 30SPS
01000011 = 25SPS
00110011 = 15SPS
00100011 = 10SPS
00010011 = 5SPS
00000011 = 2.5SPS
(1)for fCLKIN = 7.68MHz. Data rates scale linearly with fCLKIN.
I/O: GPIO Control Register (Address 04
H
)
Reset Value = E0h
BIT 7
DIR3
BIT 6
DIR2
BIT 5
DIR1
BIT 4
DIR0
BIT 3
DIO3
BIT 2
DIO2
BIT 1
DIO1
BIT 0
DIO0
The states of these bits control the operation of the general-purpose digital I/O pins. The ADS1256 has 4 I/O pins: D3, D2,
D1, and D0/CLKOUT. The ADS1255 has two digital I/O pins: D1 and D0/CLKOUT. When using an ADS1255, the register
bits DIR3, DIR2, DIO3, and DIO2 can be read from and written to but have no effect.
Bit 7
DIR3
, Digital I/O Direction for Digital I/O Pin D3 (used on ADS1256 only)
0 = D3 is an output
1 = D3 is an input (default)
DIR2
, Digital I/O Direction for Digital I/O Pin D2 (used on ADS1256 only)
0 = D2 is an output
1 = D2 is an input (default)
DIR1
, Digital I/O Direction for Digital I/O Pin D1
0 = D1 is an output
1 = D1 is an input (default)
DIR0
, Digital I/O Direction for Digital I/O Pin D0/CLKOUT
0 = D0/CLKOUT is an output (default)
1 = D0/CLKOUT is an input
Bits 3-0
DI0[3:0]
: Status of Digital I/O Pins D3, D2, D1, D0/CLKOUT
Reading these bits will show the state of the corresponding digital I/O pin, whether if the pin is configured as an
input or output by DIR3-DIR0. When the digital I/O pin is configured as an output by the DIR bit, writing to the
corresponding DIO bit will set the output state. When the digital I/O pin is configured as an input by the DIR bit,
writing to the corresponding DIO bit will have no effect. When DO/CLKOUT is configured as an output and
CLKOUT is enabled (using CLK1, CLK0 bits in the ADCON register), writing to DIO0 will have no effect.
Bit 6
Bit 5
Bit 4
相關(guān)PDF資料
PDF描述
ADS1256IDB Very Low Noise, 24-Bit Analog-to-Digital Converter
ADS1256IDBR Very Low Noise, 24-Bit Analog-to-Digital Converter
ADS1256IDBT Very Low Noise, 24-Bit Analog-to-Digital Converter
ADS1255 Very Low Noise, 24-Bit Analog-to-Digital Converter
ADS1256 Very Low Noise, 24-Bit Analog-to-Digital Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1255IDBT 制造商:Texas Instruments 功能描述:ADC 24BIT 5V SPI 30MSPS 20SSOP 制造商:Texas Instruments 功能描述:ADC, 24BIT, 5V, SPI, 30MSPS, 20SSOP 制造商:Texas Instruments 功能描述:ADC, 24BIT, 5V, SPI, 30MSPS, 20SSOP; Resolution (Bits):24bit; Sampling Rate:30kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:36mA; Digital IC Case Style:SSOP; No. of Pins:20; ;RoHS Compliant: Yes 制造商:Texas Instruments 功能描述:ADC, 24BIT, 5V, SPI, 30KSPS, 20SSOP ;ROHS COMPLIANT: YES
ADS1255IDBTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24 Bit 30kSPS Very Lo-Noise Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1256 制造商:BB 制造商全稱:BB 功能描述:Very Low Noise, 24-Bit Analog-to-Digital Converter
ADS1256EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS1256 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS1256EVM-PDK 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS1256 Perf Demo Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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