參數(shù)資料
型號(hào)： ADS1601IPFBTG4
廠商： Texas Instruments
文件頁數(shù)： 9/29頁
文件大?。?/td> 0K
描述： IC ADC 16BIT 1.25MSPS 48-TQFP
產(chǎn)品培訓(xùn)模塊： Data Converter Basics
視頻文件： Nuts and Bolts of the Delta-Sigma Converter
標(biāo)準(zhǔn)包裝： 250
位數(shù)： 16
采樣率（每秒）： 1.25M
數(shù)據(jù)接口： 串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 380mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-TQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（7x7）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 1 個(gè)差分，雙極
配用： 296-17825-ND - EVALUATION MODULE FOR ADS1601
S
1
ADS1601
S
2
VREFP
50pF
300W
S
1
VREFN
VREFP
VREFN
10 F
m
0.1 F
m
0.1 F
m
10 F
m
0.1 F
m
10 F
m
0.1 F
m
0.1 F
m
ADS1601
AGND
VREFP
VMID
VCAP
VREFN
SBAS322D
– DECEMBER 2004 – REVISED OCTOBER 2011
REFERENCE INPUTS (VREFN, VREFP, VMID)
EXTERNAL REFERENCE (REFEN = HIGH)
The ADS1601 can operate from an internal or
To use an external reference, set the REFEN pin
external
voltage
reference.
In
either
case,
the
high. This deactivates the internal generators for
reference voltage VREF is set by the differential
VREFP,
VREFN,
and
VMID,
and
saves
voltage
between
VREFN
and
VREFP:
VREF =
approximately 25mA of current on the analog supply
(VREFP
– VREFN). VREFP and VREFN each use
(AVDD). The voltages applied to these pins must be
two pins, which should be shorted together. VMID
within
the
values
specified
in
the
Electrical
equals approximately 2.5V and is used by the
Characteristics table. Typically, VREFP = 4V, VMID =
modulator. VCAP connects to an internal node and
2.5V, and VREFN = 1V. The external circuitry must
must also be bypassed with an external capacitor.
be capable of providing both a dc and a transient
current. Figure 41 shows a simplified diagram of the
internal circuitry of the reference when the internal
INTERNAL REFERENCE (REFEN = LOW)
reference is disabled. As with the input circuitry,
To use the internal reference, set the REFEN pin low.
switches S1 and S2 open and close as shown by the
This activates the internal circuitry that generates the
timing in Figure 37.
reference voltages. The internal reference voltages
are applied to the pins. Good bypassing of the
reference
pins
is
critical
to
achieve
optimum
performance and is done by placing the bypass
capacitors as close to the pins as possible. Figure 40
shows the recommended bypass capacitor values.
Use high-quality ceramic capacitors for the smaller
values. Avoid loading the internal reference with
external circuitry. If the ADS1601 internal reference is
to be used by other circuitry, buffer the reference
voltages to prevent directly loading the reference
pins.
Figure 41. Conceptual Internal Circuitry for the
Reference When REFEN = High
Figure 42 shows the recommended circuitry for
driving these reference inputs. Keep the resistances
used in the buffer circuits low to prevent excessive
thermal noise from degrading performance. Layout of
these circuits is critical; be sure to follow good
high-speed layout practices. Place the buffers, and
especially the bypass capacitors, as close to the pins
as possible. VCAP is unaffected by the setting on
REFEN and must be bypassed when using the
internal or an external reference.
Figure 40. Reference Bypassing When Using the
Internal Reference
Copyright
2004–2011, Texas Instruments Incorporated
17
相關(guān)PDF資料
PDF描述
ADS62C17IRGC25 IC ADC 11BIT 200MSPS DUAL 64VQFN
ADS62P45IRGC25 IC ADC 14B SER/PAR 125M 64VQFN
ADS7812U/1KE4 IC 12BIT 35MW SER OUT ADC 16SOIC
ADS7815UG4 IC 16BIT 250KHZ ADC CONV 28-SOIC
ADS7818PBG4 IC 12BIT 500KHZ ADC CONV 8-DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1602EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1602EVM 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
ADS1602IPFBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2.5MSPS 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
ADS1602IPFBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2.5MSPS 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
ADS1602IPFBT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2.5MSPS 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
ADS1602IPFBTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2.5MSPS 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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*