Datasheet

PGA870
www.ti.com SBOS436A –DECEMBER 2009–REVISED FEBRUARY 2011
ELECTRICAL CHARACTERISTICS: V
S+
= +5 V
Boldface limits are tested at +25°C.
At T
A
= +25°C, V
S+
= +5 V, differential input signal, differential V
OUT
= 2 V
PP
, R
L
= 200 Ω differential, G = 20 dB, and input and
output common-mode at internal midsupply reference, unless otherwise noted.
PGA870IRHD
TEST
PARAMETER CONDITIONS MIN TYP MAX UNITS LEVEL
(1)
AC PERFORMANCE
Small-signal bandwidth G = 20 dB, V
O
= 100 mV
PP
650 MHz C
Large-signal bandwidth G = 20 dB, V
O
= 2 V
PP
650 MHz C
Bandwidth for 0.1-dB flatness 100 MHz C
Slew rate (differential) 2-V step 2900 V/µs C
Rise time 2-V step 0.55 ns C
Fall time 2-V step 0.55 ns C
Settling time to 1% 2-V step 3 ns C
Settling time to 0.1% 2-V step 5 ns C
Noise figure 150-Ω system, Gain = +20 dB, f = 100 MHz 13 dB C
Gain = +20 dB, f > 1 MHz 30 nV/√Hz C
Output-referred voltage noise
Gain = –11 dB, f > 1 MHz 40 nV/√Hz C
HARMONIC DISTORTION Gain = +20 dB, V
O
= 2 V
PP
, R
L
= 200 Ω
f = 50 MHz –108 dBc C
Second-order harmonic distortion f = 100 MHz –93 dBc C
f = 200 MHz –71 dBc C
f = 50 MHz –95 dBc C
Third-order harmonic distortion f = 100 MHz –88 dBc C
f = 200 MHz –75 dBc C
f
1
(MHz) f
2
(MHz) C
49 51 -87 dBc C
Second-order intermodulation 2-MHz tone
distortion spacing
99 101 -90 dBc C
199 201 -89 dBc C
49 51 -103 dBc C
2-MHz tone
Third-order intermodulation distortion 99 101 –98 dBc C
spacing
199 201 –95 dBc C
49 51 50 dBm C
V
OUT
= 2 V
PP
,
Output third-order intercept 99 101 47 dBm C
R
L
= 200 Ω
199 201 45 dBm C
DC
T
A
= +25°C –30 ±5 30 mV A
Output offset voltage
T
A
= –40°C to +85°C –35 35 mV B
Average offset voltage drift T
A
= –40°C to +85°C 20 μV/°C B
INPUT
Input return loss Z
SYS
= 150 Ω, frequency < 300MHz -40 dB B
Differential input resistance 129 150 173 Ω B
Differential input capacitance 1.2 pF C
Single-ended input resistance 141 Ω B
Common-mode rejection ratio T
A
= +25°C, Gain = 20 dB 54 76 dB A
(1) Test levels: (A) 100% tested at +25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization
and simulation. (C) Typical value; only for information.
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Product Folder Link(s): PGA870