3

LTC1164-7

11647fb

ELECTRICAL C

C

HARA TERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Group Delay (td)(fCLK/fC) = 50:1, f ≥ fCUTOFF

151.0

± 1

µs

td = (1/360)(f/fC)(fCLK/fC) = 100:1, f ≥ fCUTOFF

297.2

± 1

µs

(Note 3)

(fCLK/fC) = 50:1, f ≥ fCUTOFF

●

149.3

153.5

µs

(fCLK/fC) = 100:1, f ≥ fCUTOFF

●

293.8

301.4

µs

Group Delay Deviation

(fCLK/fC) = 50:1, f ≥ fCUTOFF

±1.0

%

(Note 3)

(fCLK/fC) = 100:1, f ≥ fCUTOFF

±1.0

%

(fCLK/fC) = 50:1, f ≥ fCUTOFF

●

±2.0

%

(fCLK/fC) = 100:1, f ≥ fCUTOFF

●

±2.5

%

Input Frequency Range (Table 9)

(fCLK/fC) = 50:1

<fCLK

kHz

(fCLK/fC) = 100:1

<fCLK/2

kHz

Maximum fCLK

VS = Single 5V (Pins 3 and 5 at 2V)

1

MHz

VS = ±5V

1

MHz

VS = ±7.5V

1

MHz

Clock Feedthrough (f = fCLK)

50:1,

±5V, Input at GND

100

µVRMS

Wideband Noise

VS = ±2.5V

95

± 5%

µVRMS

(1Hz

≤ f < fCLK)VS = ±5V

105

± 5%

µVRMS

VS = ±7.5V

115

± 5%

µVRMS

Input Impedance

35

55

90

k

Ω

Output DC Voltage Swing (Note 4)

VS = ±2.375V

±1.25

±1.4

V

VS = ±5V

●

±3.70

±3.9

V

VS = ±7.5V

●

±5.40

±6.1

V

Output DC Offset

50:1, VS = ±5V

±100

±220

mV

100:1, VS = ±5V

±100

mV

Output DC Offset TempCo

50:1, VS = ±5V

±200

µV/°C

100:1, VS = ±5V

±200

µV/°C

Power Supply Current

VS = ±2.375V, TA = 25°C

2.5

4.0

mA

●

4.5

mA

VS = ±5V, TA = 25°C

4.5

7.0

mA

●

8.0

mA

VS = ±7.5V, TA = 25°C

7.0

11.0

mA

●

12.5

mA

Power Supply Range

±2.375

±8V

Note 1: Absolute Maximum Ratings are those values beyond which the life of a

device may be impaired.

Note 2: Input frequencies, f, are linearly phase shifted through the filter as long as

f

≤ fC; fC = cutoff frequency.

Figure 1 curve shows the typical phase response of an LTC1164-7 operating at

fCLK = 400kHz, fC = 8kHz and it closely matches an ideal straight line. The phase

shift is described by: phase shift = 180

° – F (f/fC); f ≤ fC.

F is arbitrarily called the “phase factor” expressed in degrees. The phase factor

together with the specified deviation from the ideal straight line allows the

calculation of the phase at a given frequency. Example: The phase shift at 7kHz of

the LTC1164-7 shown in Figure 1 is: phase shift = 180

° – 434° (7kHz/10kHz) ±

nonlinearity = –123.8

° ± 1% or –123.9°± 1.24°.

Note 3: Group delay and group delay deviation are calculated from the measured

phase factor and phase deviation specifications.

Note 4: The AC swing is typically 11VP-P, 7VP-P, 2.8VP-P for ±7.5V, ±5V, ±2.5V

supply respectively. For more information refer to the THD + Noise vs Input graphs.

Figure 1. Phase Response in the Passband (Note 1)

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VS = ±7.5V, RL = 10k, fCUTOFF = 8kHz or 4kHz, fCLK = 400kHz, TTL or CMOS

level and all gain measurements are referenced to passband gain, unless otherwise specified. (Maximum clock rise or fall time

≤ 1µs.)

The filter cutoff frequency is abbreviated as fCUTOFF or fC.

FREQUENCY (kHz)

0

–360

–270

–180

–90

0

90

180

246

8

1164-7 F01

10

13

57

9

fCLK = 500kHz

(fCLK/fC) = 50:1