Datasheet

AFE5808A
www.ti.com SLOS729B –OCTOBER 2011–REVISED APRIL 2012
ELECTRICAL CHARACTERISTICS (continued)
AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V, AC-coupled with 0.1 µF at INP and bypassed to
ground with 15 nF at INM, No active termination, V
CNTL
= 0 V, f
IN
= 5 MHz, LNA = 18 dB, PGA = 24 dB, 14Bit, sample
rate = 65 MSPS, LPF Filter = 15 MHz, low noise mode, V
OUT
= –1 dBFS, internal 500 Ω CW feedback resistor, CMOS CW
clocks, ADC configured in internal reference mode, single-ended VCNTL mode, VCNTLM = GND, at ambient temperature
T
A
= 25°C, unless otherwise noted. Min and max values are specified across full-temperature range with AVDD_5 V = 5 V,
AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V
PARAMETER TEST CONDITION MIN TYP MAX UNITS
CW SUMMING AMPLIFIER
V
CMO
Common-mode voltage Summing amplifier inputs/outputs 1.5 V
Summing amplifier output 4 Vpp
100 Hz 2 nV/rtHz
Input referred voltage noise 1 kHz 1.2 nV/rtHz
2 KHz-100 MHz 1 nV/rtHz
Input referred current noise 2.5 pA/rtHz
Unit gain bandwidth 200 MHz
Max output current Linear operation range 20 mApp
ADC SPECIFICATIONS
Sample rate 10 65 MSPS
SNR Signal-to-noise ratio Idle channel SNR of ADC 14b 77 dBFS
REFP 1.5 V
Internal reference mode
REFM 0.5 V
VREF_IN Voltage 1.4 V
External reference mode
VREF_IN Current 50 µA
ADC input full-scale range 2 Vpp
LVDS Rate 65MSPS at 14 bit 910 Mbps
POWER DISSIPATION
AVDD Voltage 3.15 3.3 3.6 V
AVDD_ADC Voltage 1.7 1.8 1.9 V
AVDD_5V Voltage 4.75 5 5.5 V
DVDD Voltage 1.7 1.8 1.9 V
TGC low noise mode, 65 MSPS 158 190
TGC low noise mode, 40 MSPS 145
Total power dissipation per channel mW/CH
TGC medium power mode, 40 MSPS 114
TGC low power mode, 40 MSPS 101.5
TGC low noise mode, no signal 202 240
TGC medium power mode, no signal 126
TGC low power mode, no signal 99
CW-mode, no signal 147 170
AVDD (3.3V) Current mA
TGC low noise mode, 500 mV
PP
Input,1% duty cycle 210
TGC medium power mode, 500 mV
PP
Input, 1% duty cycle 133
TGC low power, 500 mV
PP
Input, 1% duty cycle 105
CW-mode, 500mVpp Input 375
TGC mode no signal 25.5 35
CW Mode no signal, 16X clock = 32 MHz 32
AVDD_5V Current mA
TGC mode, 500 mV
PP
Input,1% duty cycle 16.5
CW-mode, 500 mV
PP
Input 42.5
TGC low noise mode, no signal 99 121
TGC medium power mode, no signal 68
TGC low power mode, no signal 55.5
VCA Power dissipation mW/CH
TGC low noise mode, 500 mV
PP
input,1% duty cycle 102.5
TGC medium power mode, 500 mV
PP
Input, 1% duty cycle 71
TGC low power mode, 500 mV
PP
input,1% duty cycle 59.5
CW Power dissipation No signal, ADC shutdown CW Mode no signal, 16X clock = 32 MHz 80
mW/CH
500 mVpp input, ADC shutdown , 16X clock = 32 MHz 173
AVDD_ADC(1.8V) Current 65 MSPS 187 205 mA
DVDD(1.8V) Current 65 MSPS 77 110 mA
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