參數(shù)資料
型號(hào)： AD7657BSTZ-1-RL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 5/32頁(yè)
文件大?。?/td> 0K
描述： IC ADC 14BIT 6CH 250KSPS 64LQFP
標(biāo)準(zhǔn)包裝： 1,500
位數(shù)： 14
采樣率（每秒）： 250k
數(shù)據(jù)接口： 串行，并聯(lián)
轉(zhuǎn)換器數(shù)目： 6
功率耗散（最大）： 143mW
電壓電源： 模擬和數(shù)字，雙 ±
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
包裝： 帶卷 (TR)
輸入數(shù)目和類(lèi)型： 6 個(gè)單端，雙極
配用： EVAL-AD7657-1EDZ-ND - BOARD EVAL CONTROL AD7657-1
EVAL-AD7657CBZ-ND - BOARD EVAL FOR AD7657
Data Sheet
AD7656-1/AD7657-1/AD7658-1
Rev. D | Page 13 of 32
Pin No.
Mnemonic
Description
7
DB8/DOUT A
Data Bit 8/Serial Data Output A. When SER/PAR SEL = 0, this pin acts as a three-state parallel digital
output pin. When SER/PAR SEL = 1 and SEL A = 1, this pin functions as DOUT A and outputs serial
conversion data.
6
DB9/DOUT B
Data Bit 9/Serial Data Output B. When SER/PAR SEL = 0, this pin acts as a three-state parallel digital
output pin. When SER/PAR SEL = 1 and SEL B = 1, this pin functions as DOUT B and outputs serial
conversion data. This configures the serial interface to have two DOUT output lines.
5
DB10/DOUT C
Data Bit 10/Serial Data Output C. When SER/PAR SEL = 0, this pin acts as a three-state parallel digital
output pin. When SER/PAR SEL = 1 and SEL C = 1, this pin functions as DOUT C and outputs serial
conversion data. This configures the serial interface to have three DOUT output lines.
4
DB11
Data Bit 11/Digital Ground. When SER/PAR SEL = 0, this pin acts as a three-state parallel digital
output pin. When SER/PAR SEL = 1, tie this pin to DGND.
2, 3, 64
DB13, DB12, DB15
Data Bit 12, Data Bit 13, Data Bit 15. When SER/PAR SEL = 0, these pins act as three-state parallel
digital input/output pins. When CS and RD are low, these pins are used to output the conversion
result. When CS and WR are low, these pins are used to write to the control register. When SER/PAR
SEL = 1, tie these pins to DGND. For the AD7657-1, DB15 contains a leading 0. For the AD7658-1,
DB15, DB13, and DB12 contain leading 0s.
1
DB14/REFBUFEN/DIS
Data Bit 14/Reference Buffer Enable and Disable. When SER/PAR SEL = 0, this pin acts as a three-
state digital input/output pin. For the AD7657-1 and AD7658-1, DB14 contains a leading 0. When
SER/PAR SEL = 1, this pin can be used to enable or disable the internal reference buffers.
28
RESET
Reset Input. When set to logic high, this pin resets the AD7656-1/AD7657-1/AD7658-1. In software
mode, the current conversion is aborted and the internal register is set to all 0s. In hardware mode, the
AD7656-1/AD7657-1/AD7658-1 are configured depending on the logic levels on the hardware select
pins. In all modes, the parts should receive a RESET pulse after power-up. The RESET high pulse should
be typically 100 ns wide. The CONVST pin may be held high during the RESET pulse. However, if the
CONVST pin is held low during the RESET pulse, then after the RESET pulse, the AD7656-1/AD7657-1
/AD7658-1 need to receive a complete CONVST pulse to initiate the first conversion; this should consist
of a high-to-low CONVST edge followed by a low-to-high CONVST edge. In hardware mode, the user
can initiate a RESET pulse between conversion cycles, that is, a 100 ns RESET pulse can be applied to
the device after BUSY has transitioned from high to low and the data has been read. The RESET can
then be issued prior to the next complete CONVST pulse. Ensure that in such a case, RESET has
returned to logic low prior to the next complete CONVST pulse.
27
RANGE
Analog Input Range Selection. Logic input. The logic level on this pin determines the input range of
the analog input channels. When this pin is Logic 1 at the falling edge of BUSY, the range for the
next conversion is ±2 × VREF. When this pin is Logic 0 at the falling edge of BUSY, the range for the
next conversion is ±4 × VREF. In hardware select mode, the RANGE pin is checked on the falling edge
of BUSY. In software mode (H/S SEL = 1), the RANGE pin can be tied to DGND, and the input range is
determined by the RNGA, RNGB, and RNGC bits in the control register.
31
VDD
Positive Power Supply Voltage. This is the positive supply voltage for the analog input section.
30
VSS
Negative Power Supply Voltage. This is the negative supply voltage for the analog input section.
24
STBY
Standby Mode Input. This pin is used to put all six on-chip ADCs into standby mode. The STBY pin is
high for normal operation and low for standby operation.
62
H/S SEL
Hardware/Software Select Input. Logic input. When H/S SEL = 0, the AD7656-1/AD7657-1/AD7658-1
operate in hardware select mode, and the ADC pairs to be simultaneously sampled are selected
by the CONVST pins. When H/S SEL = 1, the ADC pairs to be sampled simultaneously are selected by
writing to the control register. When the serial interface is selected, CONVST A is used to initiate
conversions on the selected ADC pairs.
29
W/B
Word/Byte Input. When this pin is logic low, data can be transferred to and from the AD7656-1/
AD7657-1/AD7658-1 using the parallel data lines DB[15:0]. When this pin is logic high and the parallel
interface is selected, byte mode is enabled. In this mode, data is transferred using Data Lines DB[15:8],
and DB 7 functions as HBEN. To obtain the 16-bit conversion result, 2-byte reads are required. When
the serial interface is selected, tie this pin to DGND.
相關(guān)PDF資料
PDF描述
SP3222EBCT-L/TR IC TXRX RS232 ESD TRUE 18WSOIC
ADAU1461WBCPZ-RL IC SIGMADSP 24BIT 96KHZ PLL 32
SP3222EBCA-L/TR IC TXRX RS232 ESD TRUE 20SSOP
AD7657BSTZ-REEL IC ADC 14BIT 6CH 250KSPS 64-LQFP
LTC1867AIGN IC ADC 16BIT 8CH 200KSPS 16SSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7657BSTZ-REEL 功能描述:IC ADC 14BIT 6CH 250KSPS 64-LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7657YSTZ 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類(lèi)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:Digi-Reel® 輸入數(shù)目和類(lèi)型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6
AD7657YSTZ-1 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7657YSTZ-1-RL 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7657YSTZ-REEL 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。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(gòu)。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(gòu)

我的聯(lián)系方式

*
*
*