MAX122:500ksps、12位ADC,带有采样/保持和电压基准

The MAX120/MAX122 complete, BiCMOS, sampling 12-bit analog-to-digital converters (ADCs) combine an on-chip track/hold (T/H) and a low-drift voltage reference with fast conversion speeds and low-power consumption. The T/H’s 350ns acquisition time combined with the MAX120’s 1.6µs conversion time results in throughput rates as high as 500k samples per second (ksps). Throughput rates of 333ksps are possible with the 2.6μs conversion time of the MAX122. The MAX120/MAX122 accept analog input voltages from -5V to +5V. The only external components needed are decoupling capacitors for the power-supply and reference voltages. The MAX120 operates with clocks in the 0.1MHz to 8MHz frequency range. The MAX122 accepts 0.1MHz to 5MHz clock frequencies. The MAX120/MAX122 employ a standard microprocessor (µP) interface. Three-state data outputs are configured to operate with 12-bit data buses. Data-access and bus-release timing specifications are compatible with most popular µPs without resorting to wait states. In addition, the MAX120/MAX122 can interface directly to a first-in, first-out (FIFO) buffer, virtually eliminating µP interrupt overhead. All logic inputs and outputs are TTL/CMOS compatible. For applications requiring a serial interface, refer to the MAX121.

关键特性
  • 12-Bit Resolution
  • No Missing Codes Over Temperature
  • 20ppm/°C -5V Internal Reference
  • 1.6µs Conversion Time/500ksps Throughput (MAX120)
  • 2.6µs Conversion Time/333ksps Throughput (MAX122)
  • Low Noise and Distortion:
    • 70dB Minimum SINAD;
    • -70dB Max THD (MAX122)
  • Low Power Dissipation: 210mW
  • Separate Track/Hold Control Input
  • Continuous-Conversion Mode Available
  • ±5V Input Range, Overvoltage Tolerant to ±15V
  • 24-Pin Narrow DIP, Wide SO and SSOP Packages
MAX120、MAX122:功能框图
MAX120、MAX122:功能框图
数据手册DataSheet
语言下载文件备注
英文MAX120-MAX122.pdfRev 1; 09/2014
关键参数
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalmaxSee Notes
MAX120121500SARµP/12S.E. Only5572-821
  • CDIP(N)/24
  • PDIP(N)/24
  • SOIC(W)/24
  • SSOP/24
$22.21 @1k
MAX12233370-85
  • CDIP(N)/24
  • PDIP(N)/24
  • SOIC(W)/24
  • SSOP/24
$19.66 @1k
开发工具
相关产品
  • MAX11335:500ksps、12/10位、4/8/16通道ADC,提供外部信号调理复用输入
  • MAX11135:500ksps、低功耗、串行12/10/8位、4/8/16通道ADC
  • MAX11665:500ksps、低功耗、串行12/10/8位ADC
  • MAX167:CMOS、5V输入、100ksps、12位ADC,带有采样/保持和电压基准
  • MAX174:工业标准、12位ADC,内置电压基准
  • MAX121:308ksps ADC,带有DSP接口和78dB SINAD
  • MAX183:3µs、12位ADC
  • MX7672:高速、12位ADC,带有外部基准输入
  • MAX172:完备的、10µs、CMOS、12位ADC
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX122ACAG停止供货MAX122ACAG+SSOP,;24引脚;65.8mm²0°C至+70°CRoHS/无铅:否
MAX122ACAG+生产中SSOP,;24引脚;65.8mm²0°C至+70°CRoHS/无铅:无铅
MAX122ACAG+T生产中SSOP,;24引脚;65.8mm²0°C至+70°CRoHS/无铅:无铅
MAX122ACAG-T停止供货MAX122ACAG+TSSOP;24引脚0°C至+70°C参考数据资料
MAX122ACNG停止供货MAX122ACNG+PDIP(N),;24引脚;158.4mm²0°C至+70°CRoHS/无铅:否
MAX122ACNG+生产中PDIP(N),;24引脚;158.4mm²0°C至+70°CRoHS/无铅:无铅
MAX122ACWG停止供货MAX122ACWG+SOIC(W),;24引脚;166.1mm²0°C至+70°CRoHS/无铅:否
MAX122ACWG+生产中SOIC(W),;24引脚;166.1mm²0°C至+70°CRoHS/无铅:无铅
MAX122ACWG+T生产中SOIC(W),;24引脚;166.1mm²0°C至+70°CRoHS/无铅:无铅
MAX122ACWG-T停止供货MAX122ACWG+TW.SO;24引脚0°C至+70°C参考数据资料
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX122AEAG停止供货MAX122AEAG+SSOP,;24引脚;65.8mm²-40°C至+85°CRoHS/无铅:否
MAX122AEAG+生产中SSOP,;24引脚;65.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX122AEAG+T生产中SSOP,;24引脚;65.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX122AEAG-T停止供货MAX122AEAG+TSSOP;24引脚-40°C至+85°C参考数据资料
MAX122AENG停止供货MAX122AENG+PDIP(N),;24引脚;158.4mm²-40°C至+85°CRoHS/无铅:否
MAX122AENG+生产中PDIP(N),;24引脚;158.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX122AEWG停止供货MAX122AEWG+SOIC(W),;24引脚;166.1mm²-40°C至+85°CRoHS/无铅:否
MAX122AEWG+生产中SOIC(W),;24引脚;166.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX122AEWG+T生产中SOIC(W),;24引脚;166.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX122AEWG-T停止供货MAX122AEWG+TW.SO;24引脚-40°C至+85°C参考数据资料
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX122AMYG停止供货CDIP(N),;24引脚;256mm²-55°C至+125°CRoHS/无铅:否
MAX122BC/D生产中DICE SALES,;NA引脚;DICE S;0°C至+70°C参考数据资料
MAX122BCAG停止供货MAX122BCAG+SSOP,;24引脚;65.8mm²0°C至+70°CRoHS/无铅:否
MAX122BCAG+生产中SSOP,;24引脚;65.8mm²0°C至+70°CRoHS/无铅:无铅
MAX122BCAG+T生产中SSOP,;24引脚;65.8mm²0°C至+70°CRoHS/无铅:无铅
MAX122BCAG-T停止供货MAX122BCAG+TSSOP;24引脚0°C至+70°C参考数据资料
MAX122BCNG停止供货MAX122BCNG+PDIP(N),;24引脚;158.4mm²0°C至+70°CRoHS/无铅:否
MAX122BCNG+生产中PDIP(N),;24引脚;158.4mm²0°C至+70°CRoHS/无铅:无铅
MAX122BCWG停止供货MAX122BCWG+SOIC(W),;24引脚;166.1mm²0°C至+70°CRoHS/无铅:否
MAX122BCWG+生产中SOIC(W),;24引脚;166.1mm²0°C至+70°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX122BCWG+T生产中W.SO;24引脚0°C至+70°C参考数据资料
MAX122BCWG-T停止供货MAX122BCWG+TW.SO;24引脚0°C至+70°C参考数据资料
MAX122BEAG停止供货MAX122BEAG+SSOP,;24引脚;65.8mm²-40°C至+85°CRoHS/无铅:否
MAX122BEAG+生产中SSOP,;24引脚;65.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX122BEAG+T生产中SSOP;24引脚-40°C至+85°C参考数据资料
MAX122BEAG-T停止供货MAX122BEAG+TSSOP;24引脚-40°C至+85°C参考数据资料
MAX122BENG停止供货MAX122BENG+PDIP(N),;24引脚;158.4mm²-40°C至+85°CRoHS/无铅:否
MAX122BENG+生产中PDIP(N),;24引脚;158.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX122BEWG停止供货MAX122BEWG+SOIC(W),;24引脚;166.1mm²-40°C至+85°CRoHS/无铅:否
MAX122BEWG+生产中SOIC(W),;24引脚;166.1mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX122BEWG+T生产中SOIC(W),;24引脚;166.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX122BEWG-T停止供货MAX122BEWG+TW.SO;24引脚-40°C至+85°C参考数据资料
MAX122BMYG停止供货CDIP(N),;24引脚;256mm²-55°C至+125°CRoHS/无铅:否
MAX122BMYG/883B停止供货CDIP(N),;24引脚;256mm²-55°C至+125°CRoHS/无铅:否
MAX120-MAX122.pdf MAX122
MAX120-MAX122.pdf MAX122