THS4521 极低功耗轨至轨输出全差动放大器
The THS4521, THS4522, and THS4524 family of devices are very low-power, fully differential op amps with rail-to-rail output and an input common-mode range that includes the negative rail. These amplifiers are designed for low-power data acquisition systems and high-density applications where power dissipation is a critical parameter, and provide exceptional performance in audio applications.
The family includes single (THS4521), dual (THS4522), and quad (THS4524) versions.
These fully differential op amps feature accurate output common-mode control that allows for dc-coupling when driving analog-to-digital converters (ADCs). This control, coupled with an input common-mode range below the negative rail as well as rail-to-rail output, allows for easy interfacing between single-ended, ground-referenced signal sources
|
THS4521 |
| Iq per channel (Max) (mA) |
1.25 |
| Slew Rate (Typ) (V/us) |
490 |
| GBW (Typ) (MHz) |
95 |
| Rail-Rail |
Out |
| Io (Typ) (mA) |
55 |
| Vs (Min) (V) |
2.5 |
| Vs (Max) (V) |
5.5 |
| Number of Channels |
1 |
| Pin/Package |
8MSOP, 8SOIC |
| Acl, min stable gain (V/V) |
1 |
| BW @ Acl (MHz) |
145 |
| Vio (Max) (mV) |
2 |
| Available Channels |
D, Q |
| Vn at Flatband (Typ) (nV/rtHz) |
4.6 |
| Approx. Price (US$) |
1.10 | 1ku |
| Iib (Max) (nA) |
900 |
| Noninverting Input Current Noise (pA/rtHz) |
0.6 |
| 2nd Harmonic (dBc) |
133 |
| 3rd Harmonic (dBc) |
140 |
| @ MHz |
0.01 |
| BW @ G=+2 (MHz) |
50 |
| 0.1 dB BW Flatness (MHz) |
30 |
| Operating Temperature Range (C) |
-40 to 85 |
THS4521 特性
- Fully Differential Architecture
- Bandwidth: 145 MHz
- Slew Rate: 490 V/µs
- HD2: –133 dBc at 10 kHz (1 VRMS, RL = 1 k
)
- HD3: –140 dBc at 10 kHz (1 VRMS, RL = 1 k)
- Input Voltage Noise: 4.6 nV/√Hz (f = 100 kHz)
- THD+N: –112dBc (0.00025%) at 1 kHz
(22-kHz BW, G = 1, 5 VPP)
- Open-Loop Gain: 119 dB
- NRI—Negative Rail Input
- RRO—Rail-to-Rail Output
- Output Common-Mode Control (with Low Offset and Drift)
- Power Supply:
- Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V)
- Current: 1.14 mA/ch
- Power-Down Capability: 20 µA (typ)
- APPLICATIONS
- Low-Power SAR and
ADC Drivers
- Low-Power Differential Driver
- Low-Power Differential Signal Conditioning
- Low-Power, High-Performance Differential Audio Amplifier
THS4521 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| THS4521ID |
ACTIVE |
-40 to 85 |
1.35 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| THS4521IDGKR |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
MSOP (DGK) | 8 |
2500 | LARGE T&R |
|
| THS4521IDGKT |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
MSOP (DGK) | 8 |
250 | SMALL T&R |
|
| THS4521IDR |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
THS4521 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| THS4521ID |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
THS4521ID |
THS4521ID |
| THS4521IDGKR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
THS4521IDGKR |
THS4521IDGKR |
| THS4521IDGKT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
THS4521IDGKT |
THS4521IDGKT |
| THS4521IDR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
THS4521IDR |
THS4521IDR |
THS4521 应用技术支持与电子电路设计开发资源下载
- THS4521 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
THS4521 工具与软件
| 培训内容 |
型号 |
软件/工具类型 |
| THS4521EVM 评估模块 |
THS4521EVM |
开发电路板/EVM |
