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| 型号： | MAX6225BESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES BURIED ZNR 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 基准类型： | 串联，隐埋式齐纳 |
| 输出电压： | 2.5V |
| 容差： | ±0.12% |
| 温度系数： | 7ppm/°C |
| 输入电压： | 8 V ~ 36 V |
| 通道数： | 1 |
| 电流 - 静态： | 3mA |
| 电流 - 输出： | 15mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
MAX6225/MAX6241/MAX6250
Pin Description
PIN NAME FUNCTION
1, 7, 8 I.C. Internally Connected. Do not use .
2 IN Positive Power-Supply Input
Noise Reduction. Optional capacitor
3 NR connection for wideband noise reduction.
Leave open if not used (Figure 2).
4 GND Ground
External Trim Input. Allows ±1% output
5 TRIM adjustment (Figure 1). Leave open if not
used.
Low-Noise, Precision,
+2.5V/+4.096V/+5V Voltage References
Noise Reduction
To augment wideband noise reduction, add a 1μF capaci -
tor to the NR pin (Figure 2). Larger values do not improve
noise appreciably (see Typical Operating Characteristics ).
Noise in the power-supply input can affect output noise,
but can be reduced by adding an optional bypass capaci-
tor to the IN pin and GND.
Bypassing
The MAX6225/MAX6241/MAX6250 are stable with capaci-
tive load values from 0μF to 100μF, for all values of load
current. Adding an output bypass capacitor can help reduce
noise and output glitching caused by load transients.
6
OUT
Voltage Reference Output
Applications Information
Detailed Description
Temperature Stability
The MAX6225/MAX6241/MAX6250 are highly stable,
low-noise voltage references that use a low-power tem-
perature-compensation scheme to achieve laborato-
rystandard temperature stability. This produces a nearly
flat temperature curve, yet does not require the power
associated with heated references.
The output voltage can be trimmed a minimum of 0.6%
by connecting a 10kΩ potentiometer between OUT and
GND, and connecting its tap to the TRIM pin, as shown in
Figure 1. The external trimming does not affect tempera-
ture stability.
8V TO 36V INPUT
Negative Regulator
Figure 3 shows how both a +5V and -5V precision refer-
ence can be obtained from a single unregulated +5V sup-
ply. A MAX681 generates approximately ±9V to operate
the MAX6250 reference and MAX432 inverting amplifier.
The +5V is inverted by the MAX432 chopperstabilized
amplifier. Resistor R1 is optional, and may be used to trim
the ±5V references. R2 and R4 should be matched, both
in absolute resistance and temperature coefficient. R3 is
optional, and is adjusted to set the -5V reference.
8V TO 36V INPUT
NR
IN
MAX6225
MAX6241
MAX6250
GND
OUT
TRIM
REFERENCE OUT
10k ?
*
1μF
NR
IN
MAX6225
MAX6241
MAX6250
GND
OUT
TRIM
REFERENCE OUT
*OPTIONAL
Figure 1. Output Voltage Adjustment
www.maximintegrated.com
Figure 2. Noise-Reduction Capacitor
Maxim Integrated │ 9
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相关代理商/技术参数 |
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| MAX6225BMJA | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage References |
| MAX622ACSAT | 制造商:Maxim Integrated Products 功能描述: |
| MAX622C/D | 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX622CPA | 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX622CPE | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Side Power Supplies |
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