AD7661: 16位、100 kSPS、内置基准电压的PulSAR(R)单极性ADC
AD7661是一款16位、100 kSPS、电荷再分配SAR型模数转换器（ADC）,采用5 V单电源供电。该器件内置一个16位高速采样ADC、一个内部转换时钟、一个内部基准电压、纠错电路,以及串行和并行系统接口。该器件使用ADI公司的0.6微米高性能CMOS工艺制造,成本很低；可提供48引脚LQFP和48引脚小型LFCSP两种封装；工作温度范围为-40°C至+85°C。
The AD7661 is a 16-bit, 100kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, internal reference, error correction circuits, and both serial and parallel system interface ports.It is fabricated using Analog Devices’ high-performance, 0.6 micron CMOS process, with correspondingly low cost and is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from –40°C to +85°C.
AD7661 特点
- 2.5 V内部基准电压：
典型漂移量为3 ppm/°C
最大漂移：15 ppm/°C - 吞吐量：100 kSPS
- 积分非线性（INL）：最大值±2.5 LSB（满量程的±0.0038%）
- 16位分辨率、无失码
- S/（N+D）：88 dB（20 kHz,最大值）；总谐波失真（THD）：-96 dB（20 kHz,最大值）
- 模拟输入电压范围：0 V至2.5 V
- 无流水线延迟
- 并行和串行5 V/3 V接口
- SPI(R)/QSPITM/MICROWIRETM/DSP 兼容
- 采用5 V单电源供电
- 功耗：典型值为16 mW,无基准电压、1 kSPS时为160 uW；有基准电压时的典型值为40 mW
- 封装：
48引线四方扁平封装（LQFP）
48引线芯片级封装（LFCSP）
与PulSAR(R)此系列ADC引脚兼容 - 2.5 V Internal Reference:
Typical Drift 3 ppm/°C
- Guaranteed Max Drift: 15 ppm/°C - Throughput: 100 kSPS
- INL: ±2.5 LSB Max (±0.0038% of Full Scale)
- 16 Bits Resolution with No Missing Codes
- S/(N+D): 88 dB max @ 20 kHz; THD: -96 dB max @ 20 kHz
- Analog Input Voltage Range: 0 V to 2.5 V
- No Pipeline Delay
- Parallel and Serial 5 V/3 V Interface
- SPI(R)/QSPITM/MICROWIRETM/DSP Compatible
- Single 5 V Supply Operation
- Power Dissipation:
16 mW typ, 160 uW @ 1 kSPS
without REF, 40 mW typ with REF - Package:
48-Lead Quad Flat Pack (LQFP)
48-Lead Chip Scale Package (LFCSP)
Pin-to-Pin Compatible with
PulSAR(R) ADCs
AD7661 技术指标
- Resolution (Bits): 16bit
- # Chan: 1
- Sample Rate: 100kSPS
- Interface: Par,Ser,SPI
- Analog Input Type: Diff-Uni
- Ain Range: (Vref) p-p,2.5V p-p,Uni (Vref),Uni 2.5V
- ADC Architecture: SAR
- Pkg Type: CSP,QFP
AD7661 功能框图
AD7661 芯片订购指南
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7661ACP | Prodn | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7661ACPRL | Prodn | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7661ACPZ | Prodn | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7661ACPZRL | Prodn | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7661AST | Prodn | 48 ld LQFP | 48 | 工业 |
| AD7661ASTRL | Prodn | 48 ld LQFP | 48 | 工业 |
| AD7661ASTZ | Prodn | 48 ld LQFP | 48 | 工业 |
| AD7661ASTZRL | Prodn | 48 ld LQFP | 48 | 工业 |
| EVAL-AD7661CB | Prodn | Evaluation Boards | - | 工业 |
| EVAL-AD7661CBZ | Prodn | EVALUATION BOARDS | - | 工业 |
AD7661 应用技术支持与电子电路设计开发资源下载
- AD7661 数据手册DataSheet下载 .PDF
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .PDF
- ADC模数转换器选型指南 . PDF