THS3215 Datasheet, PDF (7/71 Pages) Texas Instruments – THS3215 650-MHz, Differential to Single-Ended DAC Output Amplifier

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THS3215
SBOS780A – MARCH 2016 – REVISED APRIL 2016
Electrical Characteristics: OPS (continued)
at +V_CC = 6.0 V, –V_CC = –6.0 V, 25-Ω D2S source impedance, D2S input common-mode voltage (V_IC) = 0.25 V, V_REF = GND,
R_F = 249 Ω⁽¹⁾, R_G = 162 Ω, A_V = 2.5 V/V, OPS R_LOAD = 100 Ω, OPS enabled (DISABLE ≤ 0.7 V or floated), external OPS input
selected (PATHSEL ≥ 1.3 V), and T_J ≈ 25˚C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TEST
MIN
TYP
MAX UNIT LEVEL
(2)
DC PERFORMANCE ⁽³⁾
Open-loop transimpedance gain⁽¹⁾
Closed-loop gain
INPUT
V_OUT = ±1 V, R_LOAD= 500-Ω
800
1700
kΩ
A
0.1% external R_F and R_G resistors
2.495
2.515
2.53 V/V
A
External input offset voltage
(pin 9 to pin 12)
External input offset voltage drift
(pin 9 to pin 12)
T_J ≈ 25°C
T_J = 0°C to 70°C
T_J = –40°C to +125°C
T_J = –40°C to +125°C
–12
±2.5
12 mV
A
–13
12.5 mV
B
–14.1
13.7 mV
B
–3
–12
–21 µV/°C
B
Internal input offset voltage
(pin 6 to pin 12)
Internal input offset voltage drift
(pin 6 to pin 12)
T_J ≈ 25°C
T_J = 0°C to 70°C
T_J = –40°C to +125°C
T_J = –40°C to +125°C
–15
±2.5
15 mV
A
–15.7
15.4 mV
B
–16.6
16 mV
B
–3
–10
–16 µV/°C
B
External to internal input offset voltage
match
–7
±1.2
7 mV
C
External noninverting input bias current
(pin 9)⁽⁵⁾
External noninverting input bias current
drift (pin 9)
T_J ≈ 25°C
T_J = 0°C to 70°C
T_J = –40°C to +125°C
T_J = –40°C to +125°C
–5
±5
15 µA
A
–5
15.2 µA
B
–5.2
15.4 µA
B
0
2
3.3 nA/°C
B
Inverting input bias current – either input
selected ⁽⁵⁾
Inverting input bias current drift
Input headroom to either supply
T_J ≈ 25°C
T_J = 0°C to 70°C
T_J = –40°C to +125°C
T_J = –40°C to +125°C
–35
–39
–43.5
–15
±5
35 µA
A
37 µA
B
40.5 µA
B
–50
–85 nA/°C
B
2.6
3.0 V
A
Common-mode rejection ratio (CMRR) ±3.4-V input range
45
53
dB
A
Noninverting input resistance
17.6
18.5
22.4 kΩ
A
Noninverting input capacitance
3.3
pF
C
Open-loop inverting input impedance
OUTPUT ⁽⁶⁾
74
Ω
C
R_LOAD = 500 Ω, T_J ≈ 25°C
Output voltage headroom to either supply _{RLOAD = 500 Ω, TJ = –40°C to}
+125°C
1.3
1.4
1.6 V
A
1.8 V
B
Linear output current
Peak output current
DC output impedance
±1.7 V into 20-Ω R_LOAD
±2.6-V into 20-Ω R_LOAD
0-V output, load current = ±40 mA
75
90
mA
A
120
140
mA
A
0.05
0.12 Ω
A
Internal feedback resistor, R_F
Between pins 11 and 12
17.6
18.5
22.4 kΩ
A
(5) Currents out of pin treated as a positive polarity.
(6) Output measured at pin 11.
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