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THS4551全差分放大器可在单端源与差分输出之间提供一个简单的接口,从而满足各类高精度模数转换器(ADC )的需要。此器件兼具优异的直流精度,低噪声以及稳健的容性负载驱动能力,非常适用于具有高精度要求的数据采集系统;同时在放大器与ADC协同作用下,可获得出色的信噪声比(SNR)与无杂散动态范围(SFDR)。
THS4551特有负轨输入,可用于将直流耦合中央接地源信号连接到单电源差分输入ADC。该器件具有超低直流误差和漂移,能够满足新兴的16至20位逐次逼近寄存器(SAR)输入要求。在0.7V至3.0 V以上的ADC共模输入要求下,宽范围输出共模控制支持ADC在1.8V至5V电源下运行。
THS4551器件可在-40°C至+ 125°C的宽温度范围内额定运行,并且提供8引脚超薄小外形尺寸(VSSOP)封装,16引脚超薄四方扁平无引线( VQFN)封装以及10引脚超薄四方扁平无引线(WQFN)封装。
所有商标均为其各自所有者的财产。
Architecture |
Number of Channels (#) |
Total Supply Voltage (Min) (+5V=5, +/-5V=10) |
Total Supply Voltage (Max) (+5V=5, +/-5V=10) |
BW @ Acl (MHz) |
Acl, min spec gain (V/V) |
Slew Rate (Typ) (V/us) |
Vn at Flatband (Typ) (nV/rtHz) |
Vn at 1kHz (Typ) (nV/rtHz) |
Iq per channel (Typ) (mA) |
Vos (Offset Voltage @ 25C) (Max) (mV) |
Rail-to-Rail |
Features |
Rating |
Operating Temperature Range (C) |
Package Group |
Package Size: mm2:W x L (PKG) |
CMRR (Typ) (dB) |
Input Bias Current (Max) (pA) |
Offset Drift (Typ) (uV/C) |
GBW (Typ) (MHz) |
Output Current (Typ) (mA) |
2nd Harmonic (dBc) |
3rd Harmonic (dBc) |
@ MHz |
THS4551 | THS4521 | THS4531A | THS4541 | THS4552 | THS4561 |
---|---|---|---|---|---|
Bipolar Fully Differential Voltage FB | Voltage FB | Fully Differential Voltage FB | Fully Differential Voltage FB | Bipolar Fully Differential Voltage FB | Fully Differential |
1 | 1 | 1 | 1 | 2 | 1 |
2.7 | 2.5 | 2.5 | 2.7 | 2.7 | 2.85 |
5.4 | 5.5 | 5.5 | 5.4 | 5.4 | 12.6 |
150 | 145 | 36 | 620 | 150 | 70 |
1 | 1 | 1 | 1 | 1 | 1 |
220 | 490 | 220 | 1500 | 220 | 130 |
3.3 | 4.6 | 10 | 2.2 | 3.3 | 5 |
3.3 | 5.2 | 10 | 33 | 3.3 | 5 |
1.35 | 1.14 | 0.25 | 10.1 | 1.37 | 0.82 |
0.175 | 2 | 0.4 | 0.45 | 0.265 | 0.2 |
In to V- Out | In to V- Out | In to V- Out | In to V- Out | In to V- Out | In to V- Out |
Small Size Shutdown | Shutdown | Small Size Shutdown | Small Size Shutdown | Shutdown | Shutdown |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
-40 to 125 | -40 to 85 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
QFN VQFN VSSOP | SOIC VSSOP | QFN SOIC VSSOP | QFN VQFN | TSSOP WQFN | VQFN VSSOP |
10QFN: 4 mm2: 2 x 2(QFN) 16VQFN: 9 mm2: 3 x 3(VQFN) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 10QFN: 4 mm2: 2 x 2(QFN) 8SOIC: 29 mm2: 6 x 4.9(SOIC) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 10QFN: 4 mm2: 2 x 2(QFN) 16VQFN: 9 mm2: 3 x 3(VQFN) | 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 24WQFN: 16 mm2: 4 x 4(WQFN) | 16VQFN: 9 mm2: 3 x 3(VQFN) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
110 | 102 | 116 | 100 | 110 | 110 |
1500000 | 900000 | 250000 | 13000000 | 1500000 | 200000 |
0.45 | 2 | 3 | 0.5 | 0.45 | 0.3 |
135 | 95 | 27 | 850 | 135 | 60 |
45 | 55 | 26 | 100 | 65 | 35 |
128 | 133 | 129 | 140 | 128 | 110 |
139 | 141 | 138 | 140 | 139 | 115 |
0.1 | 0.001 | 0.001 | 0.1 | 0.1 | |