ADC3664 器件是一款低噪声、超低功耗、14 位、125MSPS 高速双通道 ADC。该器件可实现超低噪声性能和 -156.9dBFS/Hz 的噪声频谱密度,还具有出色的线性度和动态范围。ADC3664 可提供中频采样支持,使器件适合各种应用。高速控制环路受益于低至一个时钟周期的低延迟。该 ADC 在 125MSPS 下的功耗仅为每通道 100mW,其功耗随采样率减小而迅速降低。
ADC3664 使用串行 LVDS (SLVDS) 接口输出数据,可更大限度减少数字互连的次数。该器件提供双通道、单通道和半通道选项。ADC3664 与 16 位分辨率 ADC 系列实现了引脚对引脚兼容。该器件支持 –40⁰C 至 +105⁰C 的工业级工作温度范围。
器件型号 | 封装(1) | 封装尺寸(标称值) |
---|---|---|
ADC3664 | VQFN (40) | 5.00 × 5.00mm |
器件型号 | 分辨率 | 采样率 |
---|---|---|
ADC3661 | 16 位 | 10MSPS |
ADC3662 | 16 位 | 25MSPS |
ADC3663 | 16 位 | 65MSPS |
ADC3664 | 14 位 | 125MSPS |
Changes from Revision A (August 2021) to Revision B (July 2022)
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
INPUT/REFERENCE | |||
AINM | 13 | I | Negative analog input, channel A |
AINP | 12 | I | Positive analog input, channel A |
BINP | 39 | I | Positive analog input, channel B |
BINM | 38 | I | Negative analog input, channel B |
REFBUF | 4 | I | 1.2 V external voltage reference input for use with internal reference buffer. Internal 100 kΩ pull-up resistor to AVDD. This pin is also used to configure default operating conditions. |
REFGND | 3 | I | Reference ground input, 0 V |
VCM | 8 | O | Common-mode voltage output for the analog inputs, 0.95V |
VREF | 2 | I | External voltage reference input |
CLOCK | |||
CLKM | 7 | I | Negative differential sampling clock input for the ADC |
CLKP | 6 | I | Positive differential sampling clock input for the ADC |
CONFIGURATION | |||
PDN/SYNC | 1 | I | Power down/Synchronization input. This pin can be configured via the SPI interface. Active high. This pin has an internal 21 kΩ pull-down resistor. |
RESET | 9 | I | Hardware reset. Active high. This pin has an internal 21 kΩ pull-down resistor. |
SCLK | 35 | I | Serial interface clock input. This pin has an internal 21 kΩ pull-down resistor. |
SDIO | 10 | I | Serial interface data input and output. This pin has an internal 21 kΩ pull-down resistor. |
SEN | 16 | I | Serial interface enable. Active low. This pin has an internal 21 kΩ pull-up resistor to AVDD. |
NC | 27 | - | Do not connect |
DIGITAL INTERFACE | |||
DA0P | 20 | O | Positive differential serial LVDS output for lane 0, channel A. |
DA0M | 19 | O | Negative differential serial LVDS output for lane 0, channel A. |
DA1P | 18 | O | Positive differential serial LVDS output for lane 1, channel A. |
DA1M | 17 | O | Negative differential serial LVDS output for lane 1, channel A. |
DB0P | 31 | O | Positive differential serial LVDS output for lane 0, channel B. |
DB0M | 32 | O | Negative differential serial LVDS output for lane 0, channel B. |
DB1P | 33 | O | Positive differential serial LVDS output for lane 1, channel B. |
DB1M | 34 | O | Negative differential serial LVDS output for lane 1, channel B. |
DCLKP | 23 | O | Positive differential serial LVDS bit clock output. |
DCLKM | 22 | O | Negative differential serial LVDS bit clock output. |
FCLKP | 28 | O | Positive differential serial LVDS frame clock output. |
FCLKM | 29 | O | Negative differential serial LVDS frame clock output. |
DCLKINP | 25 | I | Positive differential serial LVDS bit clock input. Internal 100 Ω differential termination. |
DCLKINM | 24 | I | Negative differential serial LVDS bit clock input. Internal 100 Ω differential termination. |
POWER SUPPLY | |||
AVDD | 5,15,36 | I | Analog 1.8-V power supply |
GND | 11,14,37,40, PowerPAD | I | Ground, 0 V |
IOGND | 26 | I | Ground, 0 V for digital interface |
IOVDD | 21,30 | I | 1.8-V power supply for digital interface |
PARAMETER | TEST CONDITIONS | MIN | MAX | UNIT |
---|---|---|---|---|
Supply voltage range, AVDD, IOVDD | –0.3 | 2.1 | V | |
Supply voltage range, GND, IOGND, REFGND | –0.3 | 0.3 | V | |
Voltage applied to input pins | AINP/M, BINP/M, CLKP/M, DCLKINP/M, VREF, REFBUF | –0.3 | 2.1 | V |
PDN/SYNC, RESET, SCLK, SEN, SDIO | –0.3 | 2.1 | ||
Junction temperature, TJ | 105 | °C | ||
Storage temperature, Tstg | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) | 2500 | V |
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) | 1000 |
MIN | NOM | MAX | UNIT | |||
---|---|---|---|---|---|---|
Supply voltage range | AVDD(1) | 1.75 | 1.8 | 1.85 | V | |
IOVDD(1) | 1.75 | 1.8 | 1.85 | V | ||
TA | Operating free-air temperature | –40 | 105 | °C | ||
TJ | Operating junction temperature | 105(2) | °C |
THERMAL METRIC(1) | ADC3664 | UNIT | |
---|---|---|---|
RSB (QFN) | |||
40 Pins | |||
RΘJA | Junction-to-ambient thermal resistance | 30.7 | °C/W |
RΘJC(top) | Junction-to-case (top) thermal resistance | 16.4 | °C/W |
RΘJB | Junction-to-board thermal resistance | 10.5 | °C/W |
ΨJT | Junction-to-top characterization parameter | 0.2 | °C/W |
ΨJB | Junction-to-board characterization parameter | 10.5 | °C/W |
RΘJC(bot) | Junction-to-case (bottom) thermal resistance | 2.0 | °C/W |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
ADC3664: 125 MSPS | ||||||
IAVDD | Analog supply current | External reference | 64 | 80 | mA | |
IIOVDD | I/O supply current | SLVDS 2-wire | 47 | 72 | ||
PDIS | Power dissipation | External reference, 2-wire | 200 | 274 | mW | |
IIOVDD | I/O supply current | 2-wire, 1/2-swing | 35 | mA | ||
4x real decimation, 16-bit, 1-wire | 50 | |||||
16x real decimation, 16-bit, 1-wire | 45 | |||||
16x real decimation, 16-bit, 1/2-wire | 41 | |||||
4x complex decimation, 16-bit, 1-wire | 57 | |||||
8x complex decimation, 16-bit, 1-wire | 54 | |||||
8x complex decimation, 16-bit, 1/2-wire | 50 | |||||
16x complex decimation, 16-bit, 1-wire | 50 | |||||
16x complex decimation, 16-bit, 1/2-wire | 47 | |||||
32x complex decimation, 16-bit, 1-wire | 48 | |||||
32x complex decimation, 16-bit, 1/2-wire | 43 | |||||
MISCELLANOUS | ||||||
IAVDD | Internal reference, additional analog supply current | Enabled via SPI | 4 | mA | ||
External 1.2V reference (REFBUF), additional analog supply current | 0.5 | |||||
Single ended clock input, reduces analog supply current by | 1 | |||||
PDIS | Power consumption in global power down mode | Default mask settings | 12 | mW |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
DC ACCURACY | ||||||
No missing codes | 14 | bits | ||||
PSRR | FIN = 1 MHz | 35 | dB | |||
DNL | Differential nonlinearity | FIN = 5 MHz | -0.97 | ± 0.9 | 0.97 | LSB |
INL | Integral nonlinearity | FIN = 5 MHz | -7.5 | ± 2.6 | 7.5 | LSB |
VOS_ERR | Offset error | -55 | ± 30 | 55 | LSB | |
VOS_DRIFT | Offset drift over temperature | ± 0.06 | LSB/ºC | |||
GAINERR | Gain error | External 1.6V Reference | ± 2 | %FSR | ||
GAINDRIFT | Gain drift over temperature | External 1.6V Reference | ± 57 | ppm/ºC | ||
GAINERR | Gain error | Internal Reference | ± 3 | %FSR | ||
GAINDRIFT | Gain drift over temperature | Internal Reference | 106 | ppm/ºC | ||
Transition Noise | 0.7 | LSB | ||||
ADC ANALOG INPUT (AINP/M, BINP/M) | ||||||
FS | Input full scale | Differential | 3.2 | Vpp | ||
VCM | Input common model voltage | 0.9 | 0.95 | 1.0 | V | |
RIN | Input resistance | Differential at DC | 8 | kΩ | ||
CIN | Input Capacitance | Differential at DC | 5.4 | pF | ||
VOCM | Output common mode voltage | 0.95 | V | |||
BW | Analog Input Bandwidth (-3dB) | 1.4 | GHz | |||
Internal Voltage Reference | ||||||
VREF | Internal reference voltage | 1.6 | V | |||
VREF Output Impedance | 8 | Ω | ||||
Reference Input Buffer (REFBUF) | ||||||
External reference voltage | 1.2 | V | ||||
External voltage reference (VREF) | ||||||
VREF | External voltage reference | 1.6 | V | |||
Input Current | 1 | mA | ||||
Input impedance | 5.3 | kΩ | ||||
Clock Input (CLKP/M) | ||||||
Input clock frequency | External reference | 0.5 | 125 | MHz | ||
Internal reference | 100 | 125 | MHz | |||
VID | Differential input voltage | 1 | 3.6 | Vpp | ||
VCM | Input common mode voltage | 0.9 | V | |||
RIN | Single ended input resistance to common mode | 5 | kΩ | |||
CIN | Single ended input capacitance | 1.5 | pF | |||
Clock duty cycle | 45 | 50 | 60 | % | ||
Digital Inputs (RESET, PDN, SCLK, SEN, SDIO) | ||||||
VIH | High level input voltage | 1.4 | V | |||
VIL | Low level input voltage | 0.4 | ||||
IIH | High level input current | 90 | 150 | uA | ||
IIL | Low level input current | -150 | -90 | uA | ||
CI | Input capacitance | 1.5 | pF | |||
Digital Output (SDOUT) | ||||||
VOH | High level output voltage | ILOAD = -400 uA | IOVDD – 0.1 | IOVDD | V | |
VOL | Low level output voltage | ILOAD = 400 uA | 0.1 | |||
SLVDS Interface | ||||||
VID | Differential input voltage | DCLKIN | 200 | 350 | 650 | mVpp |
VCM | Input common mode voltage | 1 | 1.2 | 1.3 | V | |
Output data rate | per differential SLVDS output | 1 | Gbps | |||
VOD | Differential output voltage | 500 | 700 | 850 | mVpp | |
VCM | Output common mode voltage | 1.0 | V |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
NSD | Noise Spectral Density | fIN = 5 MHz, AIN = -20 dBFS | -156.9 | dBFS/Hz | ||
SNR | Signal to noise ratio | fIN = 5 MHz | 72 | 77.5 | dBFS | |
fIN = 5 MHz, AIN = -20 dBFS | 78.9 | dBFS | ||||
fIN = 10 MHz | 77.6 | |||||
fIN = 40 MHz | 76.9 | |||||
fIN = 70 MHz | 75.5 | |||||
fIN = 100 MHz | 74.1 | |||||
SINAD | Signal to noise and distortion ratio | fIN = 5 MHz | 75.7 | dBFS | ||
fIN = 10 MHz | 74.2 | |||||
fIN = 40 MHz | 72.6 | |||||
fIN = 70 MHz | 71.3 | |||||
fIN = 100 MHz | 72.4 | |||||
ENOB | Effective number of bits | fIN = 5 MHz | 12.6 | bit | ||
fIN = 10 MHz | 12.6 | |||||
fIN = 40 MHz | 12.5 | |||||
fIN = 70 MHz | 12.3 | |||||
fIN = 100 MHz | 12.0 | |||||
THD | Total Harmonic Distortion (First five harmonics) | fIN = 5 MHz | 71.5 | 80 | dBc | |
fIN = 10 MHz | 76 | |||||
fIN = 40 MHz | 74 | |||||
fIN = 70 MHz | 72 | |||||
fIN = 100 MHz | 76 | |||||
HD2 | Second Harmonic Distortion | fIN = 5 MHz | 77 | 84 | dBc | |
fIN = 10 MHz | 78 | |||||
fIN = 40 MHz | 75 | |||||
fIN = 70 MHz | 77 | |||||
fIN = 100 MHz | 79 | |||||
HD3 | Third Harmonic Distortion | fIN = 5 MHz | 73.5 | 84 | dBc | |
fIN = 10 MHz | 81 | |||||
fIN = 40 MHz | 88 | |||||
fIN = 70 MHz | 76 | |||||
fIN = 100 MHz | 81 | |||||
Non HD2,3 | Spur free dynamic range (excluding HD2 and HD3) | fIN = 5 MHz | 84 | 92 | dBFS | |
fIN = 10 MHz | 93 | |||||
fIN = 40 MHz | 89 | |||||
fIN = 70 MHz | 84 | |||||
fIN = 100 MHz | 86 | |||||
IMD3 | Two tone inter-modulation distortion | f1 = 10 MHz, f2 = 12 MHz, AIN = -7 dBFS/tone | 88 | dBc |
PARAMETER | TEST CONDITIONS | MIN | NOM | MAX | UNIT | |
---|---|---|---|---|---|---|
ADC Timing Specifications | ||||||
tAD | Aperture Delay | 0.85 | ns | |||
tA | Aperture Jitter | square wave clock with fast edges | 250 | fs | ||
tJ | Jitter on DCLKIN | ± 50 | ps pk-pk | |||
Recory time from +6 dB overload condition | SNR within 1 dB of expected value | 1 | Clock cycle | |||
tACQ | Signal acquisition period | referenced to sampling clock falling edge | -TS/4 | Sampling clock period | ||
tCONV | Signal conversion period | 6 | ns | |||
Wake up time | Time to valid data after coming out of power down. Internal reference. | Bandgap reference enabled, single ended clock | 13 | us | ||
Bandgap reference enabled, differential clock | 15 | |||||
Bandgap reference disabled, single ended clock | 2.4 | ms | ||||
Bandgap reference disabled, differential clock | 2.3 | |||||
Time to valid data after coming out of power down. External 1.6V reference. |
Bandgap reference enabled, single ended clock | 13 | us | |||
Bandgap reference enabled, differential clock | 14 | |||||
Bandgap reference disabled, single ended clock | 2.0 | ms | ||||
Bandgap reference disabled, differential clock | 2.2 | |||||
tS,SYNC | Setup time for SYNC input signal | Referenced to sampling clock rising edge | 500 | ps | ||
tH,SYNC | Hold time for SYNC input signal | 600 | ||||
ADC Latency | Signal input to data output | 1/2-wire SLVDS | 1 | Clock cycles | ||
1-wire SLVDS | 1 | |||||
2-wire SLVDS | 2 | |||||
Add. Latency | Real decimation by 2 | 21 | Output clock cycles | |||
Complex decimation by 2 | 22 | |||||
Real or complex decimation by 4, 8, 16, 32 | 23 | |||||
Interface Timing: Serial LVDS Interface | ||||||
tPD | Propagation delay: sampling clock falling edge to DCLK rising edge | Delay between sampling clock falling edge to DCLKIN falling edge < 2.5ns. TDCLK = DCLK period tCDCLK = Sampling clock falling edge to DCLKIN falling edge |
2 + TDCLK + tCDCLK |
3 + TDCLK + tCDCLK |
4 + TDCLK + tCDCLK |
ns |
Delay between sampling clock falling edge to DCLKIN falling edge >= 2.5ns. TDCLK = DCLK period tCDCLK = Sampling clock falling edge to DCLKIN falling edge |
2 + tCDCLK |
3 + tCDCLK |
4 + tCDCLK |
|||
tCD | DCLK rising edge to output data delay, 2-wire SLVDS, 14-bit |
Fout = 65 MSPS, DA/B0,1 = 455 MBPS | 0 | 0.1 | ns | |
Fout = 80 MSPS, DA/B0,1 = 560 MBPS | 0 | 0.1 | ||||
Fout = 125 MSPS, DA/B0,1 = 875 MBPS | -0.2 | 0.1 | ||||
DCLK rising edge to output data delay, 1-wire SLVDS, 14-bit |
Fout = 65 MSPS, DA/B0 = 910 MBPS | 0 | 0.1 | |||
DCLK rising edge to output data delay, 1-wire SLVDS, 16-bit |
Fout = 10 MSPS, DA/B0 = 160 MBPS | 0 | 0.1 | |||
Fout = 25 MSPS, DA/B0 = 400 MBPS | 0 | 0.1 | ||||
Fout = 62.5 MSPS, DA/B0= 1000 MBPS | -0.6 | 0.1 | ||||
DCLK rising edge to output data delay, 1/2-wire SLVDS, 16-bit |
Fout = 5 MSPS, DA0 = 160 MBPS | 0 | 0.1 | |||
Fout = 10 MSPS, DA0 = 320 MBPS | 0 | 0.1 | ||||
Fout = 25 MSPS, DA0 = 800 MBPS | 0 | 0.1 | ||||
tDV | Data valid, 2-wire SLVDS, 14-bit | Fout = 65 MSPS, DA/B0,1 = 455 MBPS | 1.8 | 1.9 | ns | |
Fout = 80 MSPS, DA/B0,1 = 560 MBPS | 1.4 | 1.5 | ||||
Fout = 125 MSPS, DA/B0,1 = 875 MBPS | 0.6 | 0.8 | ||||
Data valid, 1-wire SLVDS, 14-bit | Fout = 65 MSPS, DA/B0 = 910 MBPS | 0.6 | 0.8 | |||
Data valid, 1-wire SLVDS, 16-bit | Fout = 10 MSPS, DA/B0 = 160 MBPS | 5.7 | 5.8 | |||
Fout = 25 MSPS, DA/B0 = 400 MBPS | 2.0 | 2.1 | ||||
Fout = 62.5 MSPS, DA/B0= 1000 MBPS | 0.5 | 0.6 | ||||
Data valid, 1/2-wire SLVDS, 16-bit | Fout = 5 MSPS, DA0 = 160 MBPS | 5.7 | 5.8 | |||
Fout = 10 MSPS, DA0 = 320 MBPS | 2.7 | 2.8 | ||||
Fout = 25 MSPS, DA0 = 800 MBPS | 0.8 | 0.9 | ||||
SERIAL PROGRAMMING INTERFACE (SCLK, SEN, SDIO) - Input | ||||||
fCLK,SCLK | Serial clock frequency | 20 | MHz | |||
tS,SEN | SEN falling edge to SCLK rising edge | 10 | ns | |||
tH,SEN | SCLK rising edge to SEN rising edge | 9 | ||||
tS,SDIO | SDIO setup time from rising edge of SCLK | 17 | ||||
tH,SDIO | SDIO hold time from rising edge of SCLK | 9 | ||||
SERIAL PROGRAMMING INTERFACE (SDIO) - Output | ||||||
tOZD | Delay from falling edge of 16th SCLK cycle during read operation for SDIO transition from tri-state to valid data | 3.9 | 10.8 | ns | ||
tODZ | Delay from SEN rising edge for SDIO transition from valid data to tri-state | 3.4 | 14 | |||
tOD | Delay from falling edge of 16th SCLK cycle during read operation to SDIO valid | 3.9 | 10.8 |