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OPA4227 高精度、低噪声运算放大器

The OPA227 and OPA228 series op amps combine low noise and wide bandwidth with high precision to make them the ideal choice for applications requiring both ac and precision dc performance.

The OPA227 is unity gain stable and features high slew rate (2.3V/&micor;s) and wide bandwidth (8MHz). The OPA228 is optimized for closed-loop gains of 5 or greater, and offers higher speed with a slew rate of 10V/µs and a bandwidth of 33MHz.

The OPA227 and OPA228 series op amps are ideal for professional audio equipment. In addition, low quiescent current and low cost make them ideal for portable applications requiring high precision.

The OPA227 and OPA228 series op amps are pin-for-pin replacements for the industry standard OP-27 and OP-37 with substantial improvements across the board



	OPA2227	OPA4228	OPA227	OPA228	OPA4227	OPA4228
Number of Channels	2	2	1	1	4	4
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10)	5	5	5	5	5	5
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10)	36	36	36	36	36	36
Iq per channel(Max)(mA)	3.8	3.8	3.8	3.8	3.8	3.8
GBW(Typ)(MHz)	8	33	8	33	8	33
Slew Rate(Typ)(V/us)	2.3	11	2.3	11	2.3	11
VIO (25 deg C)(Max)(mV)	0.075	0.75	0.75	0.75	0.2	0.2
Offset Drift(Typ)(uV/C)	0.1	0.1	0.1	0.1	0.3	0.3
IIB(Max)(pA)	10000	10000	10000	10000	10000	10000
CMRR(Min)(dB)	120	120	120	120	120	120
Io(Typ)(mA)	3	3	3	3	3	3
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	8PDIP, 8SOIC	8PDIP, 8SOIC	8PDIP, 8SOIC	8PDIP, 8SOIC	14PDIP, 14SOIC	14PDIP, 14SOIC
Approx. Price (US$)	-40 to 85
Operating Temperature Range(C)	1.85 | 1ku	1.85 | 1ku	1.10 | 1ku	1.10 | 1ku	4.05 | 1ku	4.05 | 1ku

OPA4227 特性

• LOW NOISE: 3nV/(Hz)
• WIDE BANDWIDTH:
  • OPA4227: 8MHz, 2.3V/µs
  • OPA4227: 33MHz, 10V/&#micro;s
• SETTLING TIME: 5µs (significant improvement over OP-27)
• HIGH CMRR: 138dB
• HIGH OPEN-LOOP GAIN: 160dB
• LOW INPUT BIAS CURRENT: 10nA max
• LOW OFFSET VOLTAGE: 75µV max
• WIDE SUPPLY RANGE: ±2.5V to ±18V
• OPA227 REPLACES OP-27, LT1007, MAX427
• OPA228 REPLACES OP-37, LT1037, MAX437
• SINGLE, DUAL, AND QUAD VERSIONS
• APPLICATIONS
  • DATA ACQUISITION
  • TELECOM EQUIPMENT
  • GEOPHYSICAL ANALYSIS
  • VIBRATION ANALYSIS
  • SPECTRAL ANALYSIS
  • PROFESSIONAL AUDIO EQUIPMENT

OPA4227 芯片订购指南

器件	状态	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
OPA4227PA	ACTIVE	4.05 | 1ku	PDIP (N) | 14	25 | TUBE
OPA4227PAG4	ACTIVE	4.05 | 1ku	PDIP (N) | 14	25 | TUBE
OPA4227UA	ACTIVE	4.85 | 1ku	SOIC (D) | 14	50 | TUBE
OPA4227UA/2K5	ACTIVE	4.05 | 1ku	SOIC (D) | 14	2500 | LARGE T&R
OPA4227UA/2K5G4	ACTIVE	4.05 | 1ku	SOIC (D) | 14	2500 | LARGE T&R
OPA4227UAG4	ACTIVE	4.85 | 1ku	SOIC (D) | 14	50 | TUBE

OPA4227 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
OPA4227PA	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	OPA4227PA	OPA4227PA
OPA4227PAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	OPA4227PAG4	OPA4227PAG4
OPA4227UA	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	OPA4227UA	OPA4227UA
OPA4227UA/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	OPA4227UA/2K5	OPA4227UA/2K5
OPA4227UA/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	OPA4227UA/2K5G4	OPA4227UA/2K5G4
OPA4227UAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	OPA4227UAG4	OPA4227UAG4

OPA4227 应用技术支持与电子电路设计开发资源下载

1. OPA4227 数据资料 dataSheet 下载.PDF
2. TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
3. 所选封装材料的热学和电学性质 (PDF 645 KB)
4. 高速数据转换 (PDF 1967 KB)
5. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
6. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
7. 运算放大器的单电源操作 (PDF 2174 KB)
8. Tuning in Amplifiers (PDF 44 KB)
9. Op Amp Performance Analysis (PDF 76 KB)
10. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
11. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
12. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)

OPA4227 工具与软件

名称	型号	工具/软件类型
音频的快速搜索选择工具	AUDIO_SELECTION_TOOL	免费评估工具
OPA4227 评估模块	OPA4227EVM	开发电路板/EVM
用于音频转换器的软件驱动程序	CODECDRIVERS-SW	应用软件