OPA728 电子微调 20MHz、高精度 CMOS 运算放大器

The OPA728 and OPA728 series op amps use a state-of-the-art 12V analog CMOS process and e-trim, a package-level trim, offering outstanding dc precision and ac performance. The extremely low offset (150µV max) and drift (1.5µV/°C) are achieved by trimming the IC digitally after packaging to avoid the shift in parameters as a result of stresses during package assembly. To correct for offset drift, the OPA728 and OPA728 family is trimmed over temperature. The devices feature very high CMRR and open-loop gain to minimize errors.

Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA728 and OPA728 well-suited for communication, high-end audio, and active filter applications

	OPA728
Number of Channels	1
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10)	4
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10)	12
Iq per channel(Max)(mA)	6.5
GBW(Typ)(MHz)	20
Slew Rate(Typ)(V/us)	30
VIO (25 deg C)(Max)(mV)	0.15
Offset Drift(Typ)(uV/C)	0.3
IIB(Max)(pA)	500
CMRR(Min)(dB)	85
Vn at 1kHz(Typ)(nV/rtHz)	23
Rail-Rail	Out
Io(Typ)(mA)
Rating	Catalog
Offset Voltage (+/-)(Max)(mV)
Pin/Package	8MSOP, 8SON
Operating Temperature Range(C)	-40 to 125
Approx. Price (US$)	0.60 \| 1ku

OPA728 特性

OFFSET: 15µV (typ), 150µV (max)
DRIFT: 0.3µV/°C (typ), 1.5µV/°C (max)
BANDWIDTH: 20MHz
SLEW RATE: 30V/µs
BIAS CURRENT: 500pA (max)
LOW NOISE: 6nV/Hz at 100kHz
THD+N: 0.0003% at 1kHz
QUIESCENT CURRENT: 4.3mA/ch
SUPPLY VOLTAGE: 4V to 12V
SHUTDOWN MODE (OPA728): 6µA
APPLICATIONS
- OPTICAL NETWORKING
- TRANSIMPEDANCE AMPLIFIERS
- INTEGRATORS
- ACTIVE FILTERS
- A/D CONVERTER DRIVERS
- I/V CONVERTER FOR DACs
- HIGH PERFORMANCE AUDIO
- PROCESS CONTROL
- TEST EQUIPMENT

OPA728 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
OPA728AIDGKR	ACTIVE	-40 to 125	0.60 \| 1ku	MSOP (DGK) \| 8	2500 \| LARGE T&R
OPA728AIDGKRG4	ACTIVE	-40 to 125	0.60 \| 1ku	MSOP (DGK) \| 8	2500 \| LARGE T&R
OPA728AIDGKT	ACTIVE	-40 to 125	0.70 \| 1ku	MSOP (DGK) \| 8	250 \| SMALL T&R
OPA728AIDGKTG4	ACTIVE	-40 to 125	0.70 \| 1ku	MSOP (DGK) \| 8	250 \| SMALL T&R
OPA728AIDRBR	ACTIVE	-40 to 125	0.60 \| 1ku	SON (DRB) \| 8	3000 \| LARGE T&R
OPA728AIDRBRG4	ACTIVE	-40 to 125	0.60 \| 1ku	SON (DRB) \| 8	3000 \| LARGE T&R
OPA728AIDRBT	ACTIVE	-40 to 125	0.70 \| 1ku	SON (DRB) \| 8	250 \| SMALL T&R
OPA728AIDRBTG4	ACTIVE	-40 to 125	0.70 \| 1ku	SON (DRB) \| 8	250 \| SMALL T&R

OPA728 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
OPA728AIDGKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDGKR	OPA728AIDGKR
OPA728AIDGKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDGKRG4	OPA728AIDGKRG4
OPA728AIDGKT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDGKT	OPA728AIDGKT
OPA728AIDGKTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDGKTG4	OPA728AIDGKTG4
OPA728AIDRBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDRBR	OPA728AIDRBR
OPA728AIDRBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDRBRG4	OPA728AIDRBRG4
OPA728AIDRBT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDRBT	OPA728AIDRBT
OPA728AIDRBTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	OPA728AIDRBTG4	OPA728AIDRBTG4

OPA728 应用技术支持与电子电路设计开发资源下载

OPA728 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)

OPA728 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
OPA728 评估模块	OPA728EVM	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