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參數(shù)資料
| 型號： | OP727 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | Precision Micropower Single-Supply Operational Amplifiers |
| 中文描述： | 精密微功耗單電源運算放大器 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 194K |
| 代理商： | OP727 |
REV. C
OP777/OP727/OP747
–
10
–
TEMPERATURE
–
C
O
–
14.944
60
40
140
20
0
20 40
60
80 100 120
14.946
14.948
14.950
14.954
14.956
14.958
14.960
14.962
14.964
V
SY
= 15V
I
L
= 1mA
14.952
TPC 46. Output Voltage High vs.
Temperature
TEMPERATURE
–
C
O
–
14.960
60
40
140
V
SY
= 15V
I
L
= 1mA
20
0
20 40
60
80 100 120
14.955
14.950
14.945
14.935
14.930
14.940
TPC 47. Output Voltage Low vs.
Temperature
TIME
–
Minutes
V
O
–
1.5
0
1.50
0.5
5.0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
1.0
0.5
0.5
1.0
V
SY
= 15V
V
CM
= 0V
T
A
= 25 C
TPC 48. Warm-Up Drift
BASIC OPERATION
The OP777/OP727/OP747 amplifier uses a precision Bipolar
PNP input stage coupled with a high-voltage CMOS output
stage. This enables this amplifier to feature an input voltage
range which includes the negative supply voltage (often ground-
in single-supply applications) and also swing to within 1 mV of the
output rails. Additionally, the input voltage range extends to within
1 V of the positive supply rail. The epitaxial PNP input structure
provides high breakdown voltage, high gain, and an input bias cur-
rent figure comparable to that obtained with a “Darlington” input
stage amplifier but without the drawbacks (i.e., severe penalties for
input voltage range, offset, drift and noise). The PNP input structure
also greatly lowers the noise and reduces the dc input error terms.
Supply Voltage
The amplifiers are fully specified with a single 5 V supply and, due
to design and process innovations, can also operate with a supply
voltage from 2.7 V up to 30 V. This allows operation from most
split supplies used in current industry practice, with the advantage
of substantially increased input and output voltage ranges over
conventional split-supply amplifiers. The OP777/OP727/OP747
series is specified with (V
SY
= 5 V, V– = 0 V and V
CM
= 2.5 V
which is most suitable for single-supply application. With PSRR of
130 dB (0.3
μ
V/V) and CMRR of 110 dB (3
μ
V/V) offset is mini-
mally affected by power supply or common-mode voltages. Dual
supply,
±
15 V operation is also fully specified.
Input Common-Mode Voltage Range
The OP777/OP727/OP747 is rated with an input common-mode
voltage which extends from the minus supply to within 1 V of the
positive supply. However, the amplifier can still operate with input
voltages slightly below V
EE
. In Figure 2, OP777/OP727/OP747 is
configured as a difference amplifier with a single supply of 2.7 V
and negative dc common-mode voltages applied at the inputs
terminals. A 400 mV p-p input is then applied to the noninverting
input. It can be seen from the graph below that the output does not
show any distortion. Micropower operation is maintained by using
large input and feedback resistors.
TIME
–
0.2ms/DIV
V
–
V
IN
V
OUT
0V
Figure 1. Input and Output Signals with V
CM
< 0 V
+3V
OP777/
OP727/
OP747
100k
100k
100k
100k
0.1V
V
IN
= 1kHz at 400mV p-p
0.27V
Figure 2. OP777/OP727/OP747 Configured as a Differ-
ence Amplifier Operating at V
CM
< 0 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OP747 | 1K I2C™ Serial EEPROM, -40C to +85C, 8-TSSOP, TUBE |
| OP727AR | Precision Micropower Single-Supply Operational Amplifiers |
| OP727ARU | Precision Micropower Single-Supply Operational Amplifiers |
| OP747AR | Precision Micropower Single-Supply Operational Amplifiers |
| OP747ARU | Precision Micropower Single-Supply Operational Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP727AR | 功能描述:IC OPAMP GP R-R 700KHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| OP727AR-REEL | 功能描述:IC OPAMP GP R-R 700KHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| OP727AR-REEL7 | 功能描述:IC OPAMP GP R-R 700KHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| OP727AR-REEL7-DASSAULT | 制造商:Analog Devices 功能描述: |
| OP727ARU | 制造商:Analog Devices 功能描述:IC OP-AMP R/R |
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