參數(shù)資料
型號(hào): MAX5430AEKA+T
廠商: Maxim Integrated Products
文件頁數(shù): 6/7頁
文件大?。?/td> 0K
描述: IC VOLTAGE DIVIDER PGA SOT23-8
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
接片: 4
電阻(歐姆): 15k
電路數(shù): 1
存儲(chǔ)器類型: 易失
接口: 2 輸入并口
電源電壓: 12 V ~ 15 V,±12 V ~ 15 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-8
供應(yīng)商設(shè)備封裝: SOT-23-8
包裝: 帶卷 (TR)
Digital Interface Operation
The MAX5430/MAX5431 feature a simple two-bit paral-
lel programming interface. D1 and D0 program the gain
setting according to the Logic-Control Truth Table (see
Table 1). The digital interface is CMOS/TTL logic com-
patible.
Applications Information
Programmable-Gain Amplifier
The MAX5430/MAX5431 are ideally suited for high-pre-
cision PGA applications. The typical application circuit
of Figure 2 uses the MAX5431 with matching resistor to
compensate for voltage offset due to op amp input bias
currents. Use the MAX5430 with an ultra-low input bias
current op amp (see Figure 3).
Power Supplies and Bypassing
The MAX5430/MAX5431 operate from dual ±15V sup-
plies or a single 15V supply. For dual supplies, bypass
VDD and VSS with 0.1F ceramic capacitors to GND.
For single supply, connect VSS to GND and bypass
VDD with a 0.1F ceramic capacitor to GND.
Switching Time and Layout Concerns
The switching time of the MAX5430/MAX5431 depends
on the capacitive loading at W. For best performance,
reduce parasitic board capacitance by minimizing the
circuit board trace from W to the op amp inverting input,
and choose an op amp with low input capacitance.
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs
6
_______________________________________________________________________________________
15V
MATCH_L
W
H
15V
MATCH_H
VSS
VDD
GND
L
MAX5431
VIN
VOUT
15V
W
H
15V
VSS
VDD
GND
L
MAX5430
VIN
VOUT
Figure 2. MAX5431 Typical Application Circuit PGA with Input
IBIAS Matching
Figure 3. Programmable-Gain Amplifier Using the MAX5430
1
2
8
7
SOT23
TOP VIEW
3
4
6
5
MAX5430
VDD
D0
VSS
L
H
W
D1
GND
Pin Configurations (continued)
Chip Information
TRANSISTOR COUNT: 121
PROCESS: CMOS
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