ADS54J20 Datasheet, PDF (7/81 Pages) Texas Instruments – Dual-Channel, 12-Bit, 1.0-GSPS, Analog-to-Digital Converter

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ADS54J20
SBAS766A – MAY 2016 – REVISED MAY 2016
7.5 Electrical Characteristics
typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = +85°C, ADC sampling rate = 1.0 GSPS,
50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, and –1-dBFS differential input (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
GENERAL
ADC sampling rate
1000 MSPS
Resolution
12
Bits
POWER SUPPLIES
AVDD3V
3.0-V analog supply
2.85
3.0
3.6 V
AVDD
1.9-V analog supply
1.8
1.9
2.0 V
DVDD
1.9-V digital supply
1.7
1.9
2.0 V
IOVDD
1.15-V SerDes supply
1.1
1.15
1.2 V
I_AVDD3V
I_AVDD
3.0-V analog supply current
1.9-V analog supply current
V_IN = full-scale on both channels
V_IN = full-scale on both channels
8 lanes active (LMFS = 8224)
334
360 mA
359
510 mA
197
260 mA
I_DVDD
1.9-V digital supply current
4 lanes active (LMFS = 4222),
2X decimation
2 lanes active (LMFS = 2221),
4X decimation
197
mA
176
mA
8 lanes active (LMFS = 8224)
566
920 mA
I_IOVDD
1.15-V SerDes supply current
4 lanes active (LMFS = 4222),
2X decimation
2 lanes active (LMFS = 2221),
4X decimation
593
mA
562
mA
8 lanes active (LMFS = 8224)
2.71
3.1 W
P_D
Total power dissipation⁽¹⁾
4 lanes active (LMFS = 4222),
2X decimation
2 lanes active (LMFS = 2221),
4X decimation
2.74
W
2.66
W
Global power-down power dissipation
139
315 mW
ANALOG INPUTS (INAP, INAM, INBP, INBM)
Differential input full-scale voltage
V_IC
Common-mode input voltage
R_IN
Differential input resistance
At 170-MHz input frequency
C_IN
Differential input capacitance
At 170-MHz input frequency
Analog input bandwidth (3 dB)
50-Ω source driving ADC inputs
terminated with 50 Ω
1.9
V_PP
2.0
V
0.6
kΩ
4.7
pF
1.2
GHz
CLOCK INPUT (CLKINP, CLKINM)
Internal clock biasing
CLKINP and CLKINM are
connected to internal biasing
voltage through 400 Ω
1.15
V
(1) See the Power-Down Mode section for details.
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