MAX19707ETM 查看數據表（PDF） - Maxim Integrated

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MAX19707ETM

10-Bit, 45Msps, Ultra-Low-Power Analog Front-End

Maxim Integrated 

10-Bit, 45Msps, Ultra-Low-Power

Analog Front-End

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 45MHz (50% duty cycle), Rx ADC input

amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, CREFP = CREFN =

CCOM = 0.33µF, unless otherwise noted. CL < 5pF on all aux-DAC outputs. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Enable Time from Tx to Rx, (Ext2-

Tx to Ext2-Rx, Ext4-Tx to Ext4-Rx,

and SPI4-Tx to SPI3-Rx States)

tENABLE, RX ADC settles to within 1dB SINAD

500

ns

Enable Time from Rx to Tx, (Ext1-

Rx to Ext1-Tx, Ext4-Rx to Ext4-Tx,

and SPI3-Rx to SPI4-Tx States)

tENABLE, TX DAC settles to within 10 LSB error

500

ns

Enable Time from Tx to Rx, (Ext1-

Tx to Ext1-Rx, Ext3-Tx to Ext3-Rx,

and SPI1-Tx to SPI2-Rx States)

tENABLE, RX ADC settles to within 1dB SINAD

4.1

µs

Enable Time from Rx to Tx, (Ext2-

Rx to Ext2-Tx, Ext3-Rx to Ext3-Tx,

and SPI1-Rx to SPI2-Tx States)

tENABLE, TX DAC settles to within 10 LSB error

7.0

µs

INTERNAL REFERENCE (VREFIN = VDD; VREFP, VREFN, VCOM levels are generated internally)

Positive Reference

VREFP - VCOM

0.256

V

Negative Reference

VREFN - VCOM

-0.256

V

Common-Mode Output Voltage

VCOM

VDD / 2

- 0.15

VDD / 2

VDD / 2

+ 0.15

V

Maximum REFP/REFN/COM

Source Current

ISOURCE

2

mA

Maximum REFP/REFN/COM

Sink Current

ISINK

2

mA

Differential Reference Output

VREF

VREFP - VREFN

+0.489 +0.512 +0.534 V

Differential Reference Temperature

Coefficient

REFTC

±10

ppm/°C

BUFFERED EXTERNAL REFERENCE (external VREFIN = 1.024V applied; VREFP, VREFN, VCOM levels are generated internally)

Reference Input Voltage

VREFIN

1.024

V

Differential Reference Output

VDIFF

VREFP - VREFN

0.512

V

Common-Mode Output Voltage

VCOM

VDD / 2

V

Maximum REFP/REFN/COM

Source Current

ISOURCE

2

mA

Maximum REFP/REFN/COM

Sink Current

ISINK

2

mA

REFIN Input Current

REFIN Input Resistance

-0.7

µA

500

kΩ

8 _______________________________________________________________________________________

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