參數(shù)資料
型號(hào): MAX4285ESA+T
廠商: Maxim Integrated Products
文件頁數(shù): 3/16頁
文件大小: 0K
描述: IC ADC BUFFER AMP 8-SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: 緩沖器
電路數(shù): 1
轉(zhuǎn)換速率: 385 V/µs
-3db帶寬: 220MHz
電流 - 輸入偏壓: 13µA
電壓 - 輸入偏移: 100µV
電流 - 電源: 23mA
電流 - 輸出 / 通道: 106mA
電壓 - 電源,單路/雙路(±): 2.85 V ~ 6.5 V,±1.425 V ~ 3.25 V
工作溫度: -40°C ~ 85°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-SOIC
包裝: 帶卷 (TR)
MAX4285–MAX4288/MAX4387
/MAX4388
+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
with High-Speed Disable
______________________________________________________________________________________
11
Pin Description
14-PIN
SO
10-PIN
MAX
8-PIN
SO
6-PIN
SOT23-6
8-PIN
MAX/SO
Amplifier B Inverting Input
Amplifier B Noninverting Input
Amplifier B Output
12
11
13
8
7
9
6
INB-
5
INB+
7
OUTB
FUNCTION
Not Internally Connected. Connect to
ground or leave unconnected.
Amplifier Output
Negative Power Supply, or Ground in
Single-Supply Operation
Disable Amplifier A (active low)
Disable (active low)
Inverting Input
Noninverting Input
Amplifier A Noninverting Input
Amplifier A Inverting Input
Amplifier A Output
Positive Power Supply
Disable Amplifier B (active low)
5, 7, 8, 10
4
6
3
2
1
14
9
4
5
3
2
1
10
6
1, 5
6
4
8
2
3
7
NAME
N.C.
1
OUT
2
4
VEE
DISABLEA
5
DISABLE
4
IN-
3
IN+
3
INA+
2
INA-
1
OUTA
6
8
VCC
DISABLEB
Detailed Description
The MAX4285–MAX4288 and MAX4387/MAX4388 are
voltage-feedback op amps, intended for use as ADC
input buffers. They operate from a single +2.85V to
+6.5V supply or dual ±1.425V to ±3.25V supplies. Their
high output drive, wide bandwidth, fast settling, low
noise, and low distortion make them ideal for the brutal
task of meeting the dynamic input drive requirements of
high-speed ADCs or other demanding applications.
The MAX4285/MAX4286/MAX4288 and MAX4388 have
a high-speed disable mode that places the outputs in a
high-impedance state and lowers operating supply cur-
rent to 1mA. The enable time is typically 40ns, and the
disable time is typically 50ns. The MAX4285/MAX4286
have a single enable pin (DISABLE), and the MAX4288/
MAX4388 have dual disable pins (DISABLEA, DISA-
BLEB).
The MAX4285/MAX4287/MAX4288 are internally com-
pensated for unity-gain stability. The MAX4286/
MAX4387/MAX4388 are compensated for gains of
+5V/V or greater.
Applications Information
Inverting and Noninverting Configurations
Select the gain-setting feedback (RF) and input (RG)
resistor values considering the following criteria: large
resistor values increase voltage noise and interact with
the amplifier’s input and PC board capacitance to
effect system bandwidth. This generates undesirable
poles and zeros that decrease bandwidth or cause
oscillations.
PIN
MAX4285
MAX4286
MAX4287
MAX4387
MAX4288
MAX4388
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MAX4286ESA 功能描述:高速運(yùn)算放大器 3V/5V 250MHz ADC Buffer Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube