6.5 Electrical Characteristics
V
DD
= 3.3 V, C
PD
(1)
= 1 pF, EN = 0 V, IDC_EN = 3.3 V, R
L
= 100 Ω (Output is AC-coupled for AC performance parameters;
for DC performance parameters load is referenced to 1V), and T
A
= 25℃ (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AC PERFORMANCE
SSBW Small-signal bandwidth V
OUT
= 100 mV
PP
240 MHz
LSBW Large-signal bandwidth V
OUT
= 1 V
PP
240 MHz
t
R
, t
F
Rise and fall time V
OUT
= 100 mV
PP
, pulse width = 10 ns 1.5 ns
Slew rate
(2)
V
OUT
= 1 V
PP
, pulse width = 10 ns 470 V/µs
Overload recovery time (1% settling) I
IN
= 10 mA, pulse width = 10 ns 18 ns
Overload pulse extension
(3)
I
IN
= 10 mA, pulse width = 10 ns 3 ns
e
N
Output noise density f = 10 MHz 94 nV/√Hz
i
N
Integrated input-referred noise f = DC to 250 MHz 50 nA
RMS
Z
OUT
Closed-loop output impedance f = 50 MHz 10 Ω
DC PERFORMANCE
Z
21
Small-signal transimpedance gain
(4)
33 40 46 kΩ
V
O
Default output voltage I
IN
= 0 µA 0.93 1 1.07 V
ΔV
O
/ΔT
A
Output voltage drift ±20 µV/°C
INPUT PERFORMANCE
R
IN
Input Resistance 50 100 150 Ω
V
IN
Default input bias voltage Input pin floating 2.44 2.5 2.55 V
ΔV
IN
/ΔT
A
Default input bias voltage drift Input pin floating 1.1 mV/°C
I
IN
DC input current range
Z
21
< 3-dB degradation from
I
IN
= 5 µA
27 34 µA
OUTPUT PERFORMANCE
V
OH
Output voltage swing (high)
(5)
2.1 2.3 V
T
A
= –40°C to 125°C 2.3 V
V
OL
Output voltage swing (low)
(6)
0.4 0.6 V
T
A
= –40°C to 125°C 0.45 V
I
OUT
Linear output drive (source)
I
IN
= 15 µA, R
L
= 25 Ω 16 19 22
mAT
A
= –40°C, I
IN
= 15 µA, R
L
= 25 Ω 19
T
A
= 125°C, I
IN
= 15 µA, R
L
= 25 Ω 19
I
SC
Output short-circuit current
(7)
85 mA
Z
OUT
DC output impedance (amplifier enabled) 9 10 12.5 Ω
AMBIENT LIGHT CANCELLATION PERFORMANCE (IDC_EN = 0 V)
(8)
Settling time
I
IN
= 0 µA → 100 µA 6 µs
I
IN
= 100 µA → 0 µA 35 µs
Ambient light current cancellation range Output offset shift from I
DC
= 5 µA < ±10 mV 2 3 mA
POWER SUPPLY
I
Q
Quiescent current
16 19.5 24
mAT
A
= 125°C 22.5
T
A
= –40°C 17
www.ti.com
LMH34400
SBOSA56 – MARCH 2022
ADVANCE INFORMATION
Copyright © 2022 Texas Instruments Incorporated
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