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參數(shù)資料
| 型號(hào)： | AD8557ARZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CHOPPER 2MHZ 55MA 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | DigiTrim® |
| 放大器類型： | 斷路器（零漂移） |
| 電路數(shù)： | 1 |
| 增益帶寬積： | 2MHz |
| 電流 - 輸入偏壓： | 18nA |
| 電壓 - 輸入偏移： | 2µV |
| 電流 - 電源： | 1.8mA |
| 電流 - 輸出 / 通道： | 55mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
AD8557
Rev. C | Page 17 of 24
Table 10. Timing Specifications
Timing Parameter
Description
Specification
tw0
Pulse width for loading 0 into shift register
Between 50 ns and 10 s
tw1
Pulse width for loading 1 into shift register
≥50 s
tws
Width between pulses
≥10 s
Table 11. 38-Bit Serial Word Format
Field No.
Bits
Description
0
0 to 11
12-bit start of packet 1000 0000 0001
1
12 to 13
2-bit function
00: change sense current
01: simulate parameter value
10: program parameter value
11: read parameter value
2
14 to 15
2-bit parameter
00: second stage gain code
01: first stage gain code
10: output offset code
11: other functions
3
16 to 17
2-bit dummy 10
4
18 to 25
8-bit value
Parameter 00 (second stage gain code): 3 LSBs used
Parameter 01 (first stage gain code): 7 LSBs used
Parameter 10 (output offset code): all 8 bits used
Parameter 11 (other functions)
Bit 0 (LSB): master fuse
Bit 1: fuse for production test at Analog Devices
5
26 to 37
12-bit end of packet 0111 1111 1110
A 38-bit serial word is used, divided into 6 fields. Assuming
each bit can be loaded in 60 s, the 38-bit serial word transfers
in 2.3 ms. Table 11 summarizes the word format.
Field 0 and Field 5 are the start-of-packet field and end-of-
packet field, respectively. Matching the start-of-packet field with
1000 0000 0001 and the end-of-packet field with 0111 1111
1110 ensures that the serial word is valid and enables decoding
of the other fields.
Field 3 breaks up the data and ensures that no data combination
can inadvertently trigger the start-of-packet and end-of-packet
fields. Field 0 should be written first and Field 5 written last.
Within each field, the MSB must be written first and the LSB
written last. The shift register features power-on reset to mini-
mize the risk of inadvertent programming; power-on reset
occurs when VDD is between 0.7 V and 2.2 V.
Initial State
Initially, all the polysilicon fuses are intact. Each parameter has
the value 0 assigned (see Table 12).
Table 12. Initial State Before Programming
Second Stage Gain Code = 0
Second Stage Gain = 10
First stage gain code = 0
First stage gain = 2.8
Output offset code = 0
Output offset = VSS
Master fuse = 0
Master fuse not blown
When power is applied to a device, parameter values are taken
either from internal registers, if the master fuse is not blown,
or from the polysilicon fuses, if the master fuse is blown.
Programmed values have no effect until the master fuse is
blown. The internal registers feature power-on reset, so the
unprogrammed devices enter a known state after power-up.
Power-on reset occurs when VDD is between 0.7 V and 2.2 V.
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| AD8557ARZ-REEL7 | 功能描述:IC AMP CHOPPER 2MHZ 55MA 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:電流檢測 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:- 增益帶寬積:125kHz -3db帶寬:- 電流 - 輸入偏壓:- 電壓 - 輸入偏移:100µV 電流 - 電源:1.1µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-WFBGA，CSPBGA 供應(yīng)商設(shè)備封裝:4-UCSP（2x2） 包裝:剪切帶 (CT) 其它名稱:MAX9634WERS+TCT |
| AD8558WACPZ-R2 | 功能描述:IC OPAMP CHOPPER 2MHZ 16LFCSP 制造商:analog devices inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1 |
| AD8558WACPZ-REEL | 功能描述:IC OPAMP CHOPPER 2MHZ 16LFCSP 制造商:analog devices inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1 |
| AD8558WACPZ-REEL7 | 功能描述:IC OPAMP CHOPPER 2MHZ 16LFCSP 制造商:analog devices inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1 |
| AD8560 | 制造商:AD 制造商全稱:Analog Devices 功能描述:16 V Rail-to-Rail Buffer Amplifier |
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