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參數(shù)資料
| 型號： | MAX4039ETB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference |
| 中文描述： | DUAL OP-AMP, 8000 uV OFFSET-MAX, 0.004 MHz BAND WIDTH, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, MO229/WEEC, TDFN-8 |
| 文件頁數(shù)： | 12/19頁 |
| 文件大?。?/td> | 707K |
| 代理商： | MAX4039ETB |
M
Low I
BIAS
, +1.4V/800nA, Rail-to-Rail Op Amps
with +1.2V Buffered Reference
12
______________________________________________________________________________________
3)
Calculate R1:
4)
Choose the threshold voltage for V
IN
rising (V
THR
).
In this example, choose V
THR
= 2.0V.
Calculate R2:
5)
6)
Verify the threshold voltages with these formulas:
V
IN
rising:
V
IN
falling:
In this application, the MAX4036–MAX4039 supply cur-
rent will vary, depending on the output state of the
comparator.
Power Supplies and Layout
The MAX4036–MAX4039 operate from a single 1.4V
(MAX4036/MAX4038) or 1.8V (MAX4037/MAX4039) to
3.6V power supply. Bypass V
DD
with a 0.1μF capacitor
to ground to minimize noise.
Good layout techniques optimize performance by
decreasing the amount of stray capacitance to the op
amp’s inputs and outputs. To decrease stray capaci-
tance, minimize trace lengths by placing external com-
ponents close to the device.
The exposed paddle (EP) on the TDFN packages of the
MAX4038 and MAX4039 is internally connected to the
device substrate, V
SS
. Connect the exposed paddle to
V
SS
or leave EP unconnected. Running traces below the
exposed paddle is not recommended.
Chip Information
MAX4036 TRANSISTOR COUNT: 49
MAX4037 TRANSISTOR COUNT: 119
MAX4038 TRANSISTOR COUNT: 146
MAX4039 TRANSISTOR COUNT: 146
PROCESS: BiCMOS
V
V
R
V
R
THF
THR
DD
×
=
1
3
V
V
R
R
R
R
THR
REF
×
×
+
+
=
1
1
1
1
2
1
3
R
V
V
R
R
R
V
210
V
k
k
M
k
THR
×
REF
2
1
1
1
1
1
3
1
2 0
.
×
1 2
.
1
210
1
10
325
=
=
=
R
R
V
V
M
V
V
k
HB
DD
1
3
10
0 5
2 4
.
210
×
×
.
=
=
=
V
REF
R3
R1
R2
V
BATT
V
BGOOD
V
SS
V
SS
V
DD
V
DD
IN+
REF
IN-
OUT
MAX4037
Figure 4. Battery Monitoring
Selector Guide
PART
NO. OF AMPLIFIERS
1
1
2
2
REFERENCE
—
MAX4036
MAX4037
MAX4038
MAX4039
√
—
√
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4038EBL-T | Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference |
| MAX4037EUT-T | Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference |
| MAX4038ETA | Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference |
| MAX4039EBL-T | Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference |
| MAX4039EUB | Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4039ETB+ | 制造商:Maxim Integrated Products 功能描述:OP AMP DUAL GP R-R O/P 3.6V 10TDFN EP - Rail/Tube |
| MAX4039ETB+T | 功能描述:運算放大器 - 運放 1.4V/800nA Rail-Rail w/1.2V Buffered Ref RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4039ETB-T | 功能描述:運算放大器 - 運放 1.4V/800nA Rail-Rail w/1.2V Buffered Ref RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4039EUB | 功能描述:運算放大器 - 運放 1.4V/800nA Rail-Rail w/1.2V Buffered Ref RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4039EUB+ | 功能描述:運算放大器 - 運放 1.4V/800nA Rail-Rail w/1.2V Buffered Ref RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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