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参数资料
| 型号： | MAX2037CCQ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP VARIABLE GAIN 100-TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 90 |
| 类型： | 可变增益放大器 |
| 应用： | 医疗用超声波成像，声纳 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-TQFP 裸露焊盘 |
| 供应商设备封装： | 100-TQFP-EP（14x14） |
| 包装： | 托盘 |
MAX2037
Ultrasound Variable-Gain Amplifier
_______________________________________________________________________________________
9
Pin Description (continued)
PIN
NAME
FUNCTION
61
VGOUT5-
VGA Channel 5 Inverting Differential Output
62
VG_CTL-
VGA Analog Gain-Control Inverting Input
63
VG_CTL+
VGA Analog Gain-Control Noninverting Input
67
VGOUT4+
VGA Channel 4 Noninverting Differential Output
68
VGOUT4-
VGA Channel 4 Inverting Differential Output
70
VGOUT3+
VGA Channel 3 Noninverting Differential Output
71
VGOUT3-
VGA Channel 3 Inverting Differential Output
74
VGOUT2+
VGA Channel 2 Noninverting Differential Output
75
VGOUT2-
VGA Channel 2 Inverting Differential Output
77
VGOUT1+
VGA Channel 1 Noninverting Differential Output
78
VGOUT1-
VGA Channel 1 Inverting Differential Output
86
VG_CLAMP_MODE
VGA Clamp Mode Enable. Drive VG_CLAMP_MODE low to enable VGA clamping. VGA output
will be clamped at typically 2.4VP-P differential. Drive VG_CLAMP_MODE high to disable VGA
clamp mode.
94
VGIN1-
VGA Channel 1 Inverting Differential Input
95
VGIN1+
VGA Channel 1 Noninverting Differential Input
99
VGIN2-
VGA Channel 2 Inverting Differential Input
100
VGIN2+
VGA Channel 2 Noninverting Differential Input
—EP
Exposed pad. Internally connected to GND. Solder the exposed pad to the ground plane
using multiple vias.
Detailed Description
The MAX2037’s VGAs are optimized for high linearity,
high dynamic range, and low output noise perfor-
mance, making this component ideal for ultrasound-
imaging applications. The VGA paths also exhibit a
channel-to-channel crosstalk of -80dB at 10MHz and an
absolute gain error of less than ±0.25dB for minimal
channel-to-channel focusing error in an ultrasound sys-
tem. Each VGA path includes circuitry for adjusting
analog gain, an output buffer with differential output
ports (VGOUT_+, VGOUT_-) for driving ADCs, and dif-
ferential input ports (VGIN_+, VGIN_-) that are ideal for
directly interfacing to the MAX2034 quad LNA. See the
Functional Diagram for details.
The VGA has an adjustable gain range from -12.5dB to
+29.5dB, achieving a total dynamic range of typically
42dB. The VGA gain can be adjusted with the differen-
tial gain-control input VG_CTL+ and VG_CTL-. Set the
differential gain-control input voltage at -2V for maxi-
mum gain and +2V for minimum gain. The differential
analog control common-mode voltage is typically 3.0V.
VGA Clamp
A clamp is provided to limit the VGA output signals to
avoid overdriving the ADC or to prevent ADC satura-
tion. Set VG_CLAMP_MODE low to clamp the VGA dif-
ferential outputs at 2.4VP-P. Set the VG_CLAMP_MODE
high to disable the clamp.
Power Down
The device can also be powered down with PD. Set PD
to logic-high for power-down mode. In power-down
mode, the device draws a total supply current of 27mA.
Set PD to a logic-low for normal operation
Overload Recovery
The device is also optimized for quick overload recov-
ery for operation under the large input signal conditions
that are typically found in ultrasound input buffer imag-
ing applications. See the
Typical Operating
Characteristics for an illustration of the rapid recovery
time from a transmit-related overload.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2037CCQ+ | 功能描述:仪表放大器 Ultrasound Variable Gain Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| MAX2037CCQ+D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultrasound Variable-Gain Amplifier |
| MAX2037CCQ+T | 功能描述:仪表放大器 Ultrasound Variable Gain Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| MAX2037CCQ+TD | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultrasound Variable-Gain Amplifier |
| MAX2037CCQ-D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultrasound Variable-Gain Amplifier |
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