參數(shù)資料
型號(hào)： ADS1259EVM-PDK
廠商： Texas Instruments
文件頁(yè)數(shù)： 33/48頁(yè)
文件大?。?/td> 0K
描述： KIT PERFORMANCE DEMO FOR ADS1259
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 24
采樣率（每秒）： 14k
數(shù)據(jù)接口： 串行，SPI?
工作溫度： -40°C ~ 125°C
已用 IC / 零件： ADS1259
已供物品： 2 個(gè)板，文檔，軟件
其它名稱： 296-30635
ADS1259EVM-PDK-ND
AINP
AINN
RESETPWDN
/
START
SYNCOUT
CS
SCLK
DIN
DOUT
DRDY
AVDD
AVSS
VREFN
VREFP
REFOUT
DVDD
DGND
BYPASS
XTAL2
XTAL1/CLKIN
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
ADS1259
20
to50
W
20W to50W
10nF
(2)
(+)
( )
-
ControllerI/O
ControllerSPIPort
ControllerI/O
+
1 F
m
1 F
m
1 F
m
+3.3V
-2.5V
+2.5V
SignalInput
1 F
m
1 F
m
(1)
1MW
DrivesthePGA280
SYNCINPin
+
1 F
m
+
2.5V
ReferenceOutput
-
+
4.7kW
1MW
SBAS424D
– JUNE 2009 – REVISED AUGUST 2011
BASIC CONNECTION
The ADS1259 basic connections are shown in Figure 64. The diagram shows the ADS1259 operating with an
internal oscillator and with internal reference. Dual
±2.5V analog power supplies are also shown. Pins 6-9 are the
SPI port connection. The remaining digital I/O pins connect to the controller I/O. Note that the minimum
configuration of the digital I/O may include only SCLK, DIN, and DOUT.
(1) It is recommended to buffer the ADS1259 inputs. The output isolation resistors may be incorporated within the amplifier feedback loop.
(2) Low distortion C0G or film capacitor recommended.
Figure 64. ADS1259 Basic Connection Diagram
LAYOUT
Place the input buffer and input decoupling capacitors close to the ADS1259 inputs. The bypass capacitors for
power-supply and reference decoupling should also be placed close to the device. In some cases, it may be
necessary to use a split ground plane in which digital return currents of external components are routed away
from the ADS1259. In this case, connect the grounds at the power supply.
CONFIGURATION GUIDE
Configuration of the ADS1259 involves configuring the device hardware (power supply, I/O pins, etc) and device
register settings. The registers are configured by commands sent via the device SPI port.
Power Supplies
The ADS1259 analog section operates either with a single +5V or dual
±2.5V supplies. The digital section
operates from +2.7V to +5V. The digital and analog power supplies may be tied together (+5V only).
Reference
Select either the internal reference or an external reference for the ADS1259 (see the Reference section). The
default is external reference. Figure 64 depicts the internal reference connection.
Clock
Choose the desired clock source (see the Clock Source section). Figure 64 depicts the internal clock operation.
Copyright
2009–2011, Texas Instruments Incorporated
39
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1259EVM-PDK 制造商:Texas Instruments 功能描述:DEVELOPMENT TOOL
ADS1259IPW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Noise 14kSPS 24B ADC 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
ADS1259IPW 制造商:Texas Instruments 功能描述:A/D CONVERTER (A-D) IC
ADS1259IPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Noise 14kSPS 24B ADC 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
ADS1259QPWRQ1 功能描述:24 Bit Analog to Digital Converter 1 Input 1 Sigma-Delta 20-TSSOP 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 位數(shù):24 采樣率（每秒）:14k 輸入數(shù):1 輸入類型:差分，單端 數(shù)據(jù)接口:SPI 配置:ADC 無(wú)線電 - S/H:ADC:- A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):三角積分 參考類型:外部 電壓 - 電源，模擬:5V 電壓 - 電源，數(shù)字:2.7 V ~ 5.25 V 特性:PGA 工作溫度:-40°C ~ 105°C 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商器件封裝:20-TSSOP 標(biāo)準(zhǔn)包裝:1
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