LMF100_15 Datasheet, PDF (6/40 Pages) Texas Instruments – LMF100 Dual High-Performance Switched Capacitor Filters

LMF100
SNOSBG9B – JULY 1999 – REVISED JUNE 2015
www.ti.com
Electrical Characteristics for V⁺ = +5 V and V^− = −5 V (continued)
The following specifications apply for Mode 1, Q = 10 (R₁ = R₃ = 100 k, R₂ = 10 k), V⁺ = +5 V and V^− = −5 V unless otherwise
specified. All limits are T_A = T_J = 25°C unless otherwise specified.
PARAMETER
TEST CONDITIONS
LMF100CCN
MIN
TYP
MAX
LMF100CIWM
MIN
TYP
MAX
UNIT
±30
±30
V_OS2 DC Offset voltage⁽⁴⁾
f_CLK = 250 kHz
S_A/B = V⁺
Tested Limit⁽¹⁾
Design Limit⁽²⁾
T_MIN to T_MAX
T_MIN to T_MAX
±80
±80
±15
mV
±80
±15
S_A/B = V^–
Tested Limit⁽¹⁾
Design Limit⁽²⁾
T_MIN to T_MAX
T_MIN to T_MAX
±70
±70
±15
mV
±70
±15
V_OS3 DC Offset voltage⁽⁴⁾
f_CLK = 250 kHz
Tested
Limit⁽¹⁾
Design
Limit⁽²⁾
T_MIN to T_MAX
T_MIN to T_MAX
±40
±60 ^mV
±60
Crosstalk ⁽⁵⁾
A Side to B Side or B Side to A Side
–60
–60
dB
Output noise⁽⁶⁾
f_CLK = 250 kHz
N
20 kHz Bandwidth BP
40
40
320
320
µV
100:1 Mode
LP
300
300
Clock feedthrough⁽⁷⁾
f_CLK = 250 kHz 100:1 Mode
6
4
−4.7
6
mV
4
−4.7
V_OUT Minimum output voltage swing
R_L = 5 k
(All Outputs)
Tested
Limit⁽¹⁾
Design
Limit⁽²⁾
T_MIN to T_MAX
T_MIN to T_MAX
±3.8
±3.7
V
±3.7
R_L = 3.5 k
(All Outputs)
3.9
−4.6
3.9
−4.6
GB Operational amplifier gain BW
W product
5
5
MHz
SR Operational amplifier slew rate
20
20
V/µs
I_sc
Maximum output,
Source
Short circuit current⁽⁸⁾ _Sink
All Outputs
All Outputs
12
12
mA
45
45
mA
I_IN
Input current on Pins: 4, 5, 6, 9,
10, 11, 12, 16, 17
Tested Limit⁽¹⁾
Design Limit⁽²⁾
T_MIN to T_MAX
10
µA
10
(5) Crosstalk between the internal filter sections is measured by applying a 1 V_RMS 10-kHz signal to one bandpass filter section input and
grounding the input of the other bandpass filter section. The crosstalk is the ratio between the output of the grounded filter section and
the 1 V_RMS input signal of the other section.
(6) In 50:1 mode the output noise is 3 dB higher.
(7) In 50:1 mode the clock feed through is 6 dB higher.
(8) The short circuit source current is measured by forcing the output that is being tested to its maximum positive voltage swing and then
shorting that output to the negative supply. The short circuit sink current is measured by forcing the output that is being tested to its
maximum negative voltage swing and then shorting that output to the positive supply. These are the worst case conditions.
6.6 Electrical Characteristics for V⁺ = +2.5 V and V^− = −2.5 V
The following specifications apply for Mode 1, Q = 10 (R₁ = R₃ = 100 k, R₂ = 10 k), V⁺ = +2.50 V and V^− = −2.50 V unless
otherwise specified. All limits are T_A = T_J = 25°C unless otherwise specified.
PARAMETER
TEST CONDITIONS
LMF100CCN
MIN
TYP
MAX
LMF100CIWM
MIN
TYP
MAX
UNIT
8
8
I_s
Maximum supply current
f_CLK = 250 kHz,
No Input Signal
Tested
Limit ⁽¹⁾
Design
Limit ⁽²⁾
T_MIN to T_MAX
12
12
12
mA
f₀
Center frequency
0.1
50000
0.1
50000 Hz
(1) Tested limits are specified to Texas Instruments AOQL (Average Outgoing Quality Level).
(2) Design limits are specified to Texas Instruments AOQL (Average Outgoing Quality Level) but are not 100% tested.
6
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